LD1086 Datasheet by STMicroelectronics

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This is information on a product in full production.
December 2017 DocID6739 Rev 36 1/42
LD1086
1.5 A adjustable and fixed low drop positive voltage regulator
Datasheet - production data
Features
Typical dropout: 1.3 V at 1.5 A
Three-terminal adjustable or fixed output
voltage: 1.8 V, 2.5 V, 3.3 V, 5 V, 12 V
Automotive grade (adjustable VOUT in TO-220
and DPAK packages only)
Output current guaranteed up to 1.5 A
Output tolerance: ± 1% at 25 °C and ± 2% in full
temperature range
Internal power and thermal limit
Wide operating temperature range - 40 °C to
125 °C
Package available: TO-220, D²PAK, D²PAK/A,
DPAK and DFN8 (4x4)
Pinout compatibility with standard adjustable
voltage regulators
Description
The LD1086 is a low drop voltage regulator
capable of providing up to 1.5 A of output current.
Dropout is guaranteed at a maximum of 1.2 V at
the maximum output current, decreasing at lower
loads. The LD1086 is pin-to-pin compatible with
older 3-terminal adjustable regulators, but has
better performance in terms of drop and output
tolerance. Unlike PNP regulators, where a part of
the output current is wasted as quiescent current,
the LD1086 quiescent current flows into the load,
increasing efficiency. Only a 10 µF (minimum)
capacitor is needed for stability. The device is
available in a TO-220, D²PAK, D²PAK/A, DPAK or
DFN8 (4x4) package. On-chip trimming allows the
regulator to reach a very tight output voltage
tolerance; within ± 1% at 25 °C. The LD1086 is
available as automotive grade for adjustable
output voltages in the TO-220 and DPAK
packages. The PAT, SYL, SBL statistical tests
have been performed, and the devices are
qualified according to the AEC-Q100 specification
for the automotive market in the temperature
range of - 40 °C to 125 °C.
DPAK
D²PAK/A
TO-220
D²PAK DFN8 (4x4)
www.st.com
Contents LD1086
2/42 DocID6739 Rev 36
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1 TO-220 (STD-ST dual gauge) type A package information . . . . . . . . . . . 23
7.2 DPAK package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3 D²PAK (SMD 2L STD-ST) type A package information . . . . . . . . . . . . . . 28
7.4 D²PAK (SMD 3L STD-ST) type A package information . . . . . . . . . . . . . . 30
7.5 DPAK and D²PAK packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.6 DFN8 (4x4) package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.7 DFN8 (4x4) packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
DocID6739 Rev 36 3/42
LD1086 List of tables
42
List of tables
Table 1. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 2. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 3. Electrical characteristics of LD1086#18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 4. Electrical characteristics of LD1086#25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 5. Electrical characteristics of LD1086#33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 6. Electrical characteristics of LD1086#50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 7. Electrical characteristics of LD1086#12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 8. Electrical characteristics of LD1086B# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 9. Electrical characteristics of LD1086# . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 10. Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive grade). . . . . . . . 16
Table 11. TO-220 (STD-ST dual gauge) type A mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 12. DPAK mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 13. D²PAK (SMD 2L STD-ST) type A mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 14. D²PAK (SMD 3L STD-ST) type A mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 15. DPAK and D²PAK tape and reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 16. DFN8 (4x4) mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 17. DFN8 (4x4) reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 18. Order code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 19. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
List of figures LD1086
4/42 DocID6739 Rev 36
List of figures
Figure 1. Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. Pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 4. Output voltage vs. temp. (VI = 5 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 5. Output voltage vs. temp. (VI = 15 V). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 6. Output voltage vs. temperature (VI = 4.25 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 7. Short-circuit current vs. dropout voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 8. Line regulation vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 9. Load regulation vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 10. Dropout voltage vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 11. Dropout voltage vs. output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 12. Adjust pin current vs. input voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 13. Adjust pin current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 14. Adjust pin current vs. output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 15. Quiescent current vs. output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 16. Quiescent current vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 17. Supply voltage rejection vs. output current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 18. Supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 19. Supply voltage rejection vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 20. Minimum load current vs. temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 21. Stability for adjustable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 22. Stability for 2.85 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 23. Stability for 12 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 24. Line transient (VI = 12 to 13 V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 25. Line transient (IO = 200 mA). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 26. Line transient (CADJ = 1 µF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 27. Load transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 28. Load transient (Trise = Tfall = 10 µs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 29. Thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 30. TO-220 (STD-ST dual gauge) type A package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 31. DPAK package outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 32. DPAK recommended footprint (dimension are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 33. D²PAK (SMD 2L STD-ST) type A package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 34. D²PAK (SMD 3L STD-ST) type A outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 35. D²PAK (SMD 3L) recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 36. DPAK and D²PAK tape outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 37. DPAK and D²PAK reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 38. DFN8 (4x4) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 39. DFN8 (4x4) recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 40. DFN8 (4x4) tape outline (dimension are in mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 41. DFN8 (4x4) reel outline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
fiY nnnnnnnn P
DocID6739 Rev 36 5/42
LD1086 Diagram
42
1 Diagram
Figure 1. Schematic diagram
\ O 3:) ‘NFUT 3: OUTPUT OUTPUT :2 \NPUT :I OUTPUT 2:: ADJ/(3ND cmm :2 \NPUT :2 OUTPUT :2 ADJ/{3ND :: ADJ/(3ND OUTPUT mm INPUT OUTPUT ADJ/(3ND csuosso O D C :> C 3 C D C
Pin configuration LD1086
6/42 DocID6739 Rev 36
2 Pin configuration
Note: The TAB is physically connected to the output (this is valid for the TO-220 package too).
Figure 2. Pin connections (top view)
D²PAK
D²PAK/A
TO-220
DFN8 (4x4)
OUTPUT
NC
NC
A
DJ/GND
NC
IN
IN
NC
NC
AM11888v1
1
2
3
45
6
7
8
DPAK
DocID6739 Rev 36 7/42
LD1086 Maximum ratings
42
3 Maximum ratings
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VIDC input voltage 30 V
IOOutput current Internally Limited mA
PDPower dissipation Internally Limited mW
TSTG Storage temperature range -55 to +150 °C
TJJunction temperature range -40 to +150 °C
Table 2. Thermal data
Symbol Parameter TO-220 D²PAK
D²PAK/A DPAK DFN8 (4x4) Unit
RthJC Thermal resistance junction-case 5 3 8 1.5 °C/W
RthJA Thermal resistance junction-ambient 50 62.5 100 33 °C/W
LDIOEE Vw ‘ IN cm * GND cM=1mr I I came” sauna Va VIN C w Lamas um _Vu mm H% ADJ mm in R1
Schematic application LD1086
8/42 DocID6739 Rev 36
4 Schematic application
Figure 3. Application circuit
VOVREF 1R2
R1
-------+


=
DocID6739 Rev 36 9/42
LD1086 Electrical characteristics
42
5 Electrical characteristics
VI = 4.8 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 3. Electrical characteristics of LD1086#18
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage (1) IO = 0 mA, TJ = 25 °C 1.782 1.8 1.818 V
IO = 0 to 1.5 A, VI = 3.4 to 30 V 1.764 1.8 1.836 V
VOLine regulation
IO = 0 mA, VI = 3.4 to 18 V,
TJ=2C 0.2 4 mV
IO = 0 mA, VI = 3.4 to 15 V 0.4 4 mV
VOLoad regulation IO = 0 to 1.5 A, TJ = 25 °C 0.5 8 mV
IO = 0 to 1.5 A 1 16 mV
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IqQuiescent current VI 30 V 5 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2 A
VI - VO = 25 V 0.05 0.02 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.01 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5 A
VI = 6.8 3 V 60 82 dB
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
Electrical characteristics LD1086
10/42 DocID6739 Rev 36
VI = 5.5 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 4. Electrical characteristics of LD1086#25
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage (1) IO = 0 mA, TJ = 25 °C 2.475 2.5 2.525 V
IO = 0 to 1.5 A, VI = 4.1 to 30 V 2.45 2.5 2.55 V
VOLine regulation
IO = 0 mA, VI = 4.1 to 18 V,
TJ= 25 °C 0.2 4 mV
IO = 0 mA, VI = 4.1 to 18 V 0.4 4 mV
VOLoad regulation IO = 0 to 1.5 A, TJ = 25 °C 0.5 8 mV
IO = 0 to 1.5 A 1 16 mV
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IqQuiescent current VI 30 V 5 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2 A
VI - VO = 25 V 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.008 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5 A
VI = 7.5 3 V 60 81 dB
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
DocID6739 Rev 36 11/42
LD1086 Electrical characteristics
42
VI = 6.3 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 5. Electrical characteristics of LD1086#33
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage (1) IO = 0 mA, TJ = 25 °C 3.267 3.3 3.333 V
IO = 0 to 1.5 A, VI = 4.9 to 30 V 3.234 3.3 3.366 V
VOLine regulation
IO = 0 mA, VI = 4.9 to 18 V,
TJ=2C 0.5 6 mV
IO = 0 mA, VI = 4.9 to 18 V 1 6 mV
VOLoad regulation IO = 0 to 1.5 A, TJ = 25 °C 1 10 mV
IO = 0 to 1.5 A 7 25 mV
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IqQuiescent current VI 30 V 5 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2 A
VI - VO = 25 V 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.008 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5 A
VI = 8.3 3 V 60 79 dB
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
Electrical characteristics LD1086
12/42 DocID6739 Rev 36
VI = 8 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 6. Electrical characteristics of LD1086#50
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage (1) IO = 0 mA, TJ = 25 °C 4.95 5 5.05 V
IO = 0 to 1.5 A, VI = 6.6 to 30 V 4.9 5 5.1 V
VOLine regulation
IO = 0 mA, VI = 6.6 to 20V,
TJ=2C 0.5 10 mV
IO = 0 mA, VI = 6.6 to 20 V 1 10 mV
VOLoad regulation IO = 0 to 1.5 A, TJ = 25 °C 5 20 mV
IO = 0 to 1.5 A 10 35 mV
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IqQuiescent current VI 30 V 5 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2 A
VI - VO = 25 V 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.01 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5 A
VI = 10 3 V 60 75 dB
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
DocID6739 Rev 36 13/42
LD1086 Electrical characteristics
42
VI = 15 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 7. Electrical characteristics of LD1086#12
Symbol Parameter Test conditions Min. Typ. Max. Unit
VOOutput voltage (1) IO = 0 mA, TJ = 25 °C 11.88 12 12.12 V
IO = 0 to 1.5 A, VI = 13.8 to 30 V 11.76 12 12.24 V
VOLine regulation
IO = 0 mA, VI = 13.8 to 25 V,
TJ = 25 °C 125mV
IO = 0 mA, VI = 13.8 to 25 V 2 25 mV
VOLoad regulation IO = 0 to 1.5 A, TJ = 25 °C 12 36 mV
IO = 0 to 1.5 A 24 72 mV
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IqQuiescent current VI 30 V 5 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2 A
VI - VO = 25 V 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.01 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF, IO = 1.5 A
VI = 17 3 V 54 66 dB
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
Electrical characteristics LD1086
14/42 DocID6739 Rev 36
VI = 4.25 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 8. Electrical characteristics of LD1086B#
Symbol Parameter Test conditions Min. Typ. Max. Unit
Vref Reference voltage (1)
IO = 10 mA TJ = 25 °C 1.231 1.25 1.269 V
IO = 10 mA to 1.5 A, VI = 2.85 to
30 V 1.219 1.25 1.281 V
VOLine regulation
IO = 10 mA, VI = 2.8 to 16.5 V,
TJ = 25 °C 0.015 0.2 %
IO = 10 mA, VI = 2.8 to 16.5 V 0.035 0.2 %
VOLoad regulation IO = 10 mA to 1.5 A, TJ = 25 °C 0.1 0.3 %
IO = 0 to 1.5 A 0.2 0.4 %
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IO(min) Minimum load current VI 30 V 3 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2.3 A
VI - VO = 25 V 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.01 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF,CADJ = 25 µF,
IO = 1.5 A, VI = 6.25 3 V 60 88 dB
IADJ Adjust pin current VI 4.25 V, IO = 10 mA 40 120 µA
IADJ Adjust pin current change (1) IO = 10 mA to 1.5 A, VI = 2.8 to
16.5 V 0.2 5 µA
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
DocID6739 Rev 36 15/42
LD1086 Electrical characteristics
42
VI = 4.25 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 9. Electrical characteristics of LD1086#
Symbol Parameter Test conditions Min. Typ. Max. Unit
Vref Reference voltage (1)
IO = 10 mA TJ = 25 °C 1.237 1.25 1.263 V
IO = 10 mA to 1.5 A, VI = 2.85 to
30 V 1.225 1.25 1.275 V
VOLine regulation
IO = 10 mA, VI = 2.8 to 16.5 V,
TJ = 25 °C 0.015 0.2 %
IO = 10 mA, VI = 2.8 to 16.5 V 0.035 0.2 %
VOLoad regulation IO = 10 mA to 1.5 A, TJ = 25 °C 0.1 0.3 %
IO = 0 to 1.5 A 0.2 0.4 %
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IO(min) Minimum load current VI 30 V 3 10 mA
Isc Short-circuit current VI - VO = 5 V 1.5 2.3 A
VI - VO = 25 V 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.01 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF,CADJ = 25 µF,
IO = 1.5 A, VI = 6.25 3 V 60 88 dB
IADJ Adjust pin current VI 4.25 V, IO = 10 mA 40 120 µA
IADJ Adjust pin current change (1) IO = 10 mA to 1.5 A, VI = 2.8 to
16.5 V 0.2 5 µA
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
Electrical characteristics LD1086
16/42 DocID6739 Rev 36
VI = 4.25 V, CI = CO =10µF, TA = -40 to 125 °C, unless otherwise specified.
Table 10. Electrical characteristics of LD1086DTTRY and LD1086VY (Automotive grade)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Vref Reference voltage (1) IO = 10 mA TA = 25 °C 1.237 1.25 1.263 V
IO = 10 mA to 1.5 A, VI = 2.85 to 30 V 1.225 1.25 1.275 V
VOLine regulation IO = 10 mA, VI = 2.8 to 16.5 V 0.035 0.2 %
VOLoad regulation IO = 0 to 1.5 A 0.2 0.4 %
VdDropout voltage IO = 1.5 A 1.3 1.5 V
IO(min) Minimum load current VI 30 V 3 10 mA
Isc Short-circuit current VI - VO = 5 V, TA = 25 °C 1.5 2.3 A
VI - VO = 25 V, TA = 25 °C 0.05 0.2 A
Thermal regulation TA = 25 °C, 30 ms pulse 0.01 0.04 %/W
SVR Supply voltage rejection f = 120 Hz, CO = 25 µF,CADJ = 25 µF,
IO = 1.5 A, VI = 6.25 3 V, TA = 25 °C 60 88 dB
IADJ Adjust pin current VI 4.25 V, IO = 10 mA 40 120 A
IADJ Adjust pin current change (1) IO = 10 mA to 1.5 A, VI = 2.8 to 16.5 V 0.2 5 A
eN RMS output noise voltage
(% of VO)TA = 25 °C, f =10 Hz to 10 kHz 0.003 %
S Temperature stability 0.5 %
S Long term stability TA = 125 °C, 1000 Hrs 0.5 %
1. See short-circuit current curve for available output current at fixed dropout.
mam mam Va(V) Vo(V) 2.90 2.88 ‘2.I 2.85 LEA 12.0 2.81 no mg 2.75 2.75 ILB —su 0 so we mm) -so u so we mac) anssaw acafinu Va(V) km) 2.0 L25 1.5 I.2A no 1.22 0.5 L20 0 750 o 50 Ian L06) 0 5 w 15 20 25 v,(v) UM 6mm Md Gonna (mV) 0 vM—z 75 la 15.25v larlomA so we MUG) Vw’AJSV IO:IO m 150mm —50 u so mu m ("c)
DocID6739 Rev 36 17/42
LD1086 Typical application
42
6 Typical application
Unless otherwise specified TJ = 25 °C, CI = CO = 10 µF.
Figure 4. Output voltage vs. temp. (VI = 5 V) Figure 5. Output voltage vs. temp. (VI = 15 V)
Figure 6. Output voltage vs. temperature
(VI= 4.25 V) Figure 7. Short-circuit current vs. dropout
voltage
Figure 8. Line regulation vs. temperature Figure 9. Load regulation vs. temperature
msm. 56:55:90 Vdmp v v 77777777 A) (v) lq—LSA 1025 ns \\ L00 W 0‘75 050 0.5 0.25 o 0 —5o 0 so 100 mac) 0 0.25 0.5 ms I 1.25 |n(A) massan 5:55:50 wow) wow 40 40 so 3m 20 2a m m miss: a u —so u so mo mac) mam scum WNW) Mm) Ac 4 so 3 10 2 m 1 TJ=25°C o 0 Mm BBC 1200 \°(mA) A00 EDD I200 \o(mA)
Typical application LD1086
18/42 DocID6739 Rev 36
Figure 10. Dropout voltage vs. temperature Figure 11. Dropout voltage vs. output current
Figure 12. Adjust pin current vs. input voltage Figure 13. Adjust pin current vs. temperature
Figure 14. Adjust pin current vs. output current Figure 15. Quiescent current vs. output current
cessson mm) ccxsssu svmua) 5 A 70 3 55 2 wN—v0:311.5v t so 5A a o 5 to ‘5 20 25 V|u(V) 55 a 250 50:: 750 mm) 1250 lo(mA) ccassze scasam SVR(dE) SVRME) 50 7a 50 2.55 12v 65 A0 aw=lZ wN:(vD+3.5v):I.5v Vina=3=L5v so 20 \u 1.5A onz om u 55 10 100 moo moan I(KH1) 750 n 50 I00 n00) um 5mm ccmnsn (m) Esme) Vw— . 3 s 2 4 // // t 2 o n 750 0 50 I00 TJ(°C) a 5 m I5 10 GDOLF)
DocID6739 Rev 36 19/42
LD1086 Typical application
42
Figure 16. Quiescent current vs. input voltage Figure 17. Supply voltage rejection vs. output
current
Figure 18. Supply voltage rejection vs.
frequency Figure 19. Supply voltage rejection vs.
temperature
Figure 20. Minimum load current vs.
temperature Figure 21. Stability for adjustable
cc55u7u ccafinm ESRm) 55%)) ID 20 15 IS w IO 5 5 o o o 5 to IS 20 @(Mr) 0 5 IO IS 20 CoOLF) Vout= 10V VOL|t=1OV \ A \ H - , , ‘ ‘ ", j V7 ‘ ~ » \ I /,._¥ —\\/ r 'rnse='rsan=5us , * / Tnse:‘flal\:10us ¢ — \ / _ _ u an vnav m Innmv» mucus cm; 124v “ch. mm, m mum News (In, . .v :1 m :uuw mm (In SunmA Zuflmv: W In Hus Chl J 410!le
Typical application LD1086
20/42 DocID6739 Rev 36
Figure 22. Stability for 2.85 V Figure 23. Stability for 12 V
Figure 24. Line transient (VI = 12 to 13 V)
VI = 12 to 13 V, IO = 200 mA, CI = 1 µF (tant), CO = 10 µF
(tant), No CADJ
Figure 25. Line transient (IO = 200 mA)
VI = 12 to 13 V, IO = 200 mA, CI = 1 µF (tant), CO = 10 µF
(tant), No CADJ
Figure 26. Line transient (CADJ = 1 µF)
VI = 12 to 13 V, IO = 200 mA, CI = 1 µF (tant), CO = 10 µF
(tant), CADJ = 1 µF
Figure 27. Load transient
VI = 13 V, IO = 0.1 to 1.5 A, CI = 1 µF (tant), CO = 10 µF (tant)
CADJ = 1 µF
m n uh Law (:2 m wumrim nun cucuammvlmw 1 \ xnumA mum m mm (
DocID6739 Rev 36 21/42
LD1086 Typical application
42
Figure 28. Load transient (Trise = Tfall = 10 µs)
VI = 13 V, IO = 0.1 to 1.5 A, CI = 1 µF (tant), CO = 10 µF
(tant), CADJ = 1 µF
Figure 29. Thermal protection
VO = 2.85 V
Package information LD1086
22/42 DocID6739 Rev 36
7 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
A aP E F {\A o 1 J 7 H’ _ D i m k L20 ,— P Q g L30 \ 21 V b1(X3)——‘ L\ L +J1 ' | 1 2 J [a | a“ a k b (X5)
DocID6739 Rev 36 23/42
LD1086 Package information
42
7.1 TO-220 (STD-ST dual gauge) type A package information
Figure 30. TO-220 (STD-ST dual gauge) type A package outline
BW\SH$B5HYB7
Package information LD1086
24/42 DocID6739 Rev 36
Table 11. TO-220 (STD-ST dual gauge) type A mechanical data
Dim. mm
Min. Typ. Max.
A 4.40 4.60
b 0.61 0.88
b1 1.14 1.70
c 0.48 0.70
D 15.25 15.75
D1 1.27
E 10 10.40
e 2.40 2.70
e1 4.95 5.15
F 1.23 1.32
H1 6.20 6.60
J1 2.40 2.72
L13 14
L1 3.50 3.93
L20 16.40
L30 28.90
P 3.75 3.85
Q 2.65 2.95
\ n _ E A b4 ”2 L2 V " ‘ D H L; d __ A I ‘ b 2x} e1 SEA TING PLANE GAUGE P ' E THERMAL PAD
DocID6739 Rev 36 25/42
LD1086 Package information
42
7.2 DPAK package information
Figure 31. DPAK package outline
0068772_K
Package information LD1086
26/42 DocID6739 Rev 36
Table 12. DPAK mechanical data
Dim. mm
Min. Typ. Max.
A 2.20 2.40
A1 0.90 1.10
A2 0.03 0.23
b 0.64 0.90
b4 5.20 5.40
c 0.45 0.60
c2 0.48 0.60
D 6.00 6.20
D1 5.10
E 6.40 6.60
E1 4.70
e2.28
e1 4.40 4.60
H9.35 10.10
L 1.00 1.50
(L1) 2.80
L2 0.80
L4 0.60 1.00
R0.20
V2 0°
63
DocID6739 Rev 36 27/42
LD1086 Package information
42
Figure 32. DPAK recommended footprint (dimension are in mm)
Footprint_REV_K
Package information LD1086
28/42 DocID6739 Rev 36
7.3 D²PAK (SMD 2L STD-ST) type A package information
Figure 33. D²PAK (SMD 2L STD-ST) type A package outline
0079457_T
DocID6739 Rev 36 29/42
LD1086 Package information
42
Table 13. D²PAK (SMD 2L STD-ST) type A mechanical data
Dim. mm
Min. Typ. Max.
A 4.40 4.60
A1 0.03 0.23
b 0.70 0.93
b2 1.14 1.70
c 0.45 0.60
c2 1.23 1.36
D 8.95 9.35
D1 7.50
E10 10.40
E1 8.50
e2.54
e1 4.88 5.28
H15 15.85
J1 2.49 2.69
L 2.29 2.79
L1 1.27 1.40
L2 1.30 1.75
R0.4
V2 0°
.41. E J/Z. 92*T u L 2 a 4.7 P ._51a J! b2 (2X) SEAWNG PLANE CDPLANAR/TY A I 1—. ; mg, E“ THERMAL PAD GAUGE PLANE
Package information LD1086
30/42 DocID6739 Rev 36
7.4 D²PAK (SMD 3L STD-ST) type A package information
Figure 34. D²PAK (SMD 3L STD-ST) type A outline
7106164_E
DocID6739 Rev 36 31/42
LD1086 Package information
42
Table 14. D²PAK (SMD 3L STD-ST) type A mechanical data
Dim. mm
Min. Typ. Max.
A 4.40 4.60
A1 0.03 0.23
b 0.70 0.93
b1 0.80 1.30
b2 1.14 1.70
c 0.45 0.60
c2 1.23 1.36
D 8.95 9.35
D1 7.50
E10 10.40
E1 8.50
e2.54
e1 4.88 5.28
H15 15.85
J1 2.49 2.69
L 2.29 2.79
L1 1.27 1.40
R0.4
V2 0°
—— 72.2 —— 3.5 76. 7.6 2.54 I «‘ 5,08
Package information LD1086
32/42 DocID6739 Rev 36
Figure 35. D²PAK (SMD 3L) recommended footprint
fix) 0 O < fw®="" ‘="" \)="" a="" g="" e="" o="" 4="" @="" v="" ,c="" em="" @="" m="" §++¢$§+99§§¢¢="" _n_="" m;="" bui="" n_="" fig»="" ¢="">
DocID6739 Rev 36 33/42
LD1086 Package information
42
7.5 DPAK and D²PAK packing information
Figure 36. DPAK and D²PAK tape outline
P1
A0 D1
P0
F
W
E
D
B0
K0
T
User direction of feed
P2
10 pitches cumulative
tolerance on tape +/- 0.2 mm
User direction of feed
R
Bending radius
B1
For machine ref. only
including draft and
radii concentric around B0
AM08852v1
Top cover
tape
Package information LD1086
34/42 DocID6739 Rev 36
Figure 37. DPAK and D²PAK reel outline
Table 15. DPAK and D²PAK tape and reel mechanical data
Tape Reel
Dim. mm Dim. mm
Min. Max. Min. Max.
A0 6.8 7 A 330
B0 10.4 10.6 B 1.5
B1 12.1 C 12.8 13.2
D1.5 1.6D20.2
D1 1.5 G 16.4 18.4
E 1.65 1.85 N 50
F 7.4 7.6 T 22.4
K0 2.55 2.75
P0 3.9 4.1 Base qty. 2500
P1 7.9 8.1 Bulk qty. 2500
P2 1.9 2.1
R40
T 0.25 0.35
W 15.7 16.3
A
D
B
Full radius G measured at hub
C
N
REEL DIMENSIONS
40mm min.
Access hole
At sl ot location
T
Tape slot
in core for
tape start 25 mm min.
width
AM08851v2
PW 7 /D \ BO 770M WE W EXPOSED PAD Q-l LEADS CDPLANAR/TY PW 7 /D / TOP WSW 786965375
DocID6739 Rev 36 35/42
LD1086 Package information
42
7.6 DFN8 (4x4) package information
Figure 38. DFN8 (4x4) package outline
D/MENS/UNS W mm 3.24 MM T 1‘75 / 2st $ 7 2 5% ¢ 7 0.50 (5x) 0,35 (8x) ‘ Thaw 0. 80
Package information LD1086
36/42 DocID6739 Rev 36
Figure 39. DFN8 (4x4) recommended footprint
Table 16. DFN8 (4x4) mechanical data
Dim. mm.
Min. Typ. Max.
A 0.80 0.90 1
A1 0 0.02 0.05
A3 0,20
b 0.23 0.30 0.38
D 3.90 4 4.10
D2 2.82 3 3.23
E 3.90 4 4.10
E2 2.05 2.20 2.30
e0.80
L 0.40 0.50 0.60
++++++Hfifi w Him Eu EH H , mi nmmum MUM»: AH flUr[!WHr ‘1 um nmn [HHW nmmu [7 [w \: ‘ rnnmn r! um m nmmu p. H mm a) Autumn? a w m 555W; Va? (gm , EJW ‘ ‘ , ‘ ; 7 .2 £9 , ‘ ‘ I! g x v» m w ‘ A» / \ RS2; / mm \ \ ‘ ”€47 \ z m H u) Mummy-fl m arm-Hm a! mm. m. ». arm-Hu- .57 mm m) WHY-.2. K“; .v m mm .y mm
DocID6739 Rev 36 37/42
LD1086 Package information
42
7.7 DFN8 (4x4) packing information
Figure 40. DFN8 (4x4) tape outline (dimension are in mm)
Table 17. DFN8 (4x4) reel mechanical data
Dim. mm. inch.
Min. Typ. Max. Min. Typ. Max.
A 330 12.992
C 12.8 13.0 13.2 0.504 0.512 0.519
D 20.2 0.795
N60 2.362
T22.40.882
7279936
[ K \ g / Nma. Drawing nm in scans
Package information LD1086
38/42 DocID6739 Rev 36
Figure 41. DFN8 (4x4) reel outline
DocID6739 Rev 36 39/42
LD1086 Ordering information
42
8 Ordering information
Table 18. Order code
Packages
TO-220 D²PAK D²PAK/A DPAK DFN8 (4x4) Output
voltages
LD1086V18-DG LD1086D2T18TR LD1086DT18TR 1.8 V
LD1086DT25TR 2.5 V
LD1086V33-DG LD1086D2T33TR LD1086D2M33TR LD1086DT33TR 3.3 V
LD1086D2T50TR LD1086DT50TR 5.0 V
LD1086D2T12TR 12.0 V
LD1086V-DG LD1086D2TTR LD1086D2MTR LD1086DTTR LD1086PUR ADJ
LD1086VY (1) LD1086DTTRY (2) ADJ
LD1086BV-DG LD1086BD2TTR LD1086BD2MTR LD1086BDTTR ADJ
1. Automotive grade products.
Revision history LD1086
40/42 DocID6739 Rev 36
9 Revision history
Table 19. Document revision history
Date Revision Changes
16-May-2006 14 Order codes updated and new template.
19-Jan-2007 15 D²PAK mechanical data updated and add footprint data.
05-Apr-2007 16 Order codes updated.
07-Jun-2007 17 Order codes updated.
19-Jul-2007 18 Add note on Figure 2.
03-Dec-2007 19 Modified: Table 18.
31-Jan-2008 20 Added new order codes for Automotive grade products.
18-Feb-2008 21 Modified: Table 18 on page 39.
14-Jul-2008 22 Modified: Table 1 on page 7 and Table 18 on page 39.
10-Mar-2010 23 Added: Table 12 on page 26, Figure 30 on page 23, Figure 31 on page 25,
Figure 31 and Figure 32 on page 27.
15-Nov-2010 24 Modified: RthJC value for TO-220 Table 2 on page 7.
11-Jul-2011 25 Modified: Figure 24, Figure 25 on page 20 and Table 18 on page 39.
10-Feb-2012 26 Added: order code LD1086V-DG Table 18 on page 39.
15-Mar-2012 27 Added: new order code LD1086PUR Table 18 on page 39 and new package
mechanical data DFN8 (4x4 mm) Table 16 on page 36, Figure 38 on page 35,
Figure 39 on page 36, Figure 40 on page 37 and Figure 41 on page 38.
19-Oct-2012 28 Added: RthJA value for DPAK Table 2 on page 7.
13-Feb-2013 29 Modified: Output voltage in Voltage reference parameter Table 8 on page 14
and Table 10 on page 16.
01-Mar-2013 30 Modified: DFN8 (4 x 4) pin configuration Figure 2 on page 6.
17-Jun-2013 31
Added Table 8: Electrical characteristics of LD1086B# and Section 7.7: DFN8
(4x4) packing information.
Updated Section 7: Package information and Table 18: Order code.
Minor text changes.
22-Oct-2013 32
RPN LD1086xx changed to LD1086.
Updated the Description in cover page.
Cancelled Table 1: Device summary.
Updated Figure 2: Pin connections (top view), Section 5: Electrical
characteristics, Section 7: Package information and Table 18: Order code.
Minor text changes.
18-Dec-2014 33 Updated Table 6.: Electrical characteristics of LD1086#50, Section 7: Package
information and Section 7.7: DFN8 (4x4) packing information.
Minor text changes.
10-Feb-2015 34 Updated Table 18: Order code.
Minor text changes.
DocID6739 Rev 36 41/42
LD1086 Revision history
42
16-Nov-2015 35 Updated Section 7: Package information and Table 18: Order code
Minor text changes.
19-Dec-2017 36 Updated TJ value in Table 1: Absolute maximum ratings.
Table 19. Document revision history (continued)
Date Revision Changes
LD1086
42/42 DocID6739 Rev 36
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© 2017 STMicroelectronics – All rights reserved

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