LD1117Axx Datasheet by STMicroelectronics

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This is information on a product in full production.
July 2013 DocID7194 Rev 26 1/24
LD1117A
Low drop fixed and adjustable positive voltage regulators
Datasheet
-
production data
Features
Low dropout voltage:
1.15 V typ. @ I
OUT
= 1 A, 25 °C
Very low quiescent current:
5 mA typ. @ 25 °C
Output current up to 1 A
Fixed output voltage of:
1.2 V, 1.8 V, 3.3 V
Adjustable version availability (V
REF
= 1.25 V)
Internal current and thermal limit
Only 10 µF for stability
Available in ± 2% (at 25 °C) and 4% in full
temperature range
High supply voltage rejection:
80 dB typ. (at 25 °C)
Temperature range: 0 °C to 125 °C
Description
The LD1117A is a low drop voltage regulator able
to provide up to 1 A of output current, available
also in adjustable versions (V
REF
= 1.25 V). In
fixed versions, the following output voltages are
offered: 1.2 V, 1.8 V, and 3.3 V. The device is
supplied in: SOT-223, DPAK and TO-220. Surface
mounted packages optimize the thermal
characteristics while offering a relevant space
saving advantage. High efficiency is assured by
an NPN pass transistor. Only a very common 10
µF minimum capacitor is needed for stability. Chip
trimming allows the regulator to reach a very tight
output voltage tolerance, within ± 2% at 25 °C.
TO-220
SOT-223
DPAK
Table 1. Device summary
Order codes Output voltage
SOT-223 DPAK TO-220
LD1117AS12TR LD1117ADT12TR 1.2 V
LD1117AS18TR LD1117ADT18TR 1.8 V
LD1117AS33TR LD1117ADT33TR LD1117AV33 3.3 V
LD1117ASTR LD1117ADT-TR Adjustable from 1.25 V
www.st.com
Contents LD1117A
2/24 DocID7194 Rev 26
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Schematic application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 LD1117A adjustable: application note . . . . . . . . . . . . . . . . . . . . . . . . . . 12
8 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
9 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
VIN VOLYAGE H 504:me 2mm GENERAYOR mam cowmsmo YNERHAL PRmquN VouT scnufil cm:
DocID7194 Rev 26 3/24
LD1117A Diagram
24
1 Diagram
Figure 1. Block diagram
:HH
Pin configuration LD1117A
4/24 DocID7194 Rev 26
2 Pin configuration
Note: The TAB is connected to the V
OUT
.
Figure 2. Pin connections (top view)
DPAK
SOT-223
TO-220
ADJ/GND VOUT
1
VIN
23
ADJ/GND
VOUT
1
VIN
2
3
ADJ/GND
OUTPUT
INPUT
DocID7194 Rev 26 5/24
LD1117A Maximum ratings
24
3 Maximum ratings
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied. Beyond the above suggested
max. power dissipation, a short-circuit may permanently damage the device.
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
IN
DC input voltage 15 V
P
D
Power dissipation 12 W
T
STG
Storage temperature range -40 to +150 °C
T
OP
Operating junction temperature range 0 to +125 °C
Table 3. Thermal data
Symbol Parameter SOT-223 DPAK TO-220 Unit
R
thJC
Thermal resistance junction-case 15 8 5 °C/W
R
thJA
Thermal resistance junction-ambient 110 100 50 °C/W
CW LD1117 100nF C OUT 10;”: sco7az1
Schematic application LD1117A
6/24 DocID7194 Rev 26
4 Schematic application
Figure 3. Application circuit (for fixed output voltages)
A
DocID7194 Rev 26 7/24
LD1117A Electrical characteristics
24
5 Electrical characteristics
Refer to the test circuits, T
J
= 0 to 125 °C, C
O
= 10 µF, C
I
= 10 µF, R = 120 Ω between OUT-
GND, unless otherwise specified.
Refer to the test circuits, T
J
= 0 to 125 °C, C
O
= 10 µF, C
I
= 10 µF, unless otherwise
specified.
Table 4. Electrical characteristics of LD1117A#12
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage V
I
= 5.3 V, I
O
= 10 mA, T
J
= 25 °C 1.176 1.2 1.224 V
V
O
Output voltage I
O
= 0 to 1 A, V
I
= 2.75 to 10 V 1.152 1.2 1.248 V
ΔV
O
Line regulation V
I
= 2.75 to 8 V, I
O
= 0 mA 1 6 mV
ΔV
O
Load regulation V
I
= 2.75 V, I
O
= 0 to 1 A 1 10 mV
ΔV
O
Temperature stability 0.5 %
ΔV
O
Long term stability 1000 hrs, T
J
= 125 °C 0.3 %
V
I
Operating input voltage I
O
= 100 mA 10 V
I
d
Quiescent current V
I
8 V, I
O
= 0 mA 5 10 mA
I
O
Output current V
I
- V
O
= 5 V, T
J
= 25 °C 1000 1200 mA
eN Output noise voltage B = 10 Hz to 10 kHz, T
J
= 25 °C 100 µV
SVR Supply voltage rejection I
O
= 40 mA, f = 120 Hz
V
I
- V
O
= 3 V, V
ripple
= 1 V
PP
60 80 dB
V
D
Dropout voltage
I
O
= 100 mA 1 1.10
VI
O
= 500 mA 1.05 1.15
I
O
= 1 A 1.15 1.30
ΔV
O(pwr)
Thermal regulation T
a
= 25 °C, 30 ms pulse 0.08 0.2 %/W
Table 5. Electrical characteristics of LD1117A#18
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage V
I
= 3.8 V, I
O
= 10 mA, T
J
= 25 °C 1.764 1.8 1.836 V
V
O
Output voltage I
O
= 0 to 1 A, V
I
= 3.3 to 8 V 1.728 1.872 V
ΔV
O
Line regulation V
I
= 3.3 to 8 V, I
O
= 0 mA 1 6 mV
ΔV
O
Load regulation V
I
= 3.3 V, I
O
= 0 to 1 A 1 10 mV
ΔV
O
Temperature stability 0.5 %
ΔV
O
Long term stability 1000 hrs, T
J
= 125 °C 0.3 %
V
I
Operating input voltage I
O
= 100 mA 10 V
I
d
Quiescent current V
I
8 V, I
O
= 0 mA 5 10 mA
I
O
Output current V
I
- V
O
= 5 V, T
J
= 25 °C 1000 mA
Electrical characteristics LD1117A
8/24 DocID7194 Rev 26
Refer to the test circuits, T
J
= 0 to 125 °C, C
O
= 10 µF, C
I
= 10 µF, unless otherwise
specified.
Refer to the test circuits, T
J
= 0 to 125 °C, C
O
= 10 µF, C
I
= 10 µF, unless otherwise
specified.
eN Output noise voltage B = 10 Hz to 10 kHz, T
J
= 25 °C 100 µV
SVR Supply voltage rejection I
O
= 40 mA, f = 120 Hz
V
I
- V
O
= 3 V, V
ripple
= 1 V
PP
60 80 dB
V
D
Dropout voltage
I
O
= 100 mA 1 1.10
VI
O
= 500 mA 1.05 1.15
I
O
= 1 A 1.15 1.30
ΔV
O(pwr)
Thermal regulation T
a
= 25 °C, 30 ms pulse 0.08 0.2 %/W
Table 5. Electrical characteristics of LD1117A#18 (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Table 6. Electrical characteristics of LD1117A#33
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage V
I
= 5.3 V, I
O
= 10 mA, T
J
= 25 °C 3.234 3.3 3.366 V
V
O
Output voltage I
O
= 0 to 1 A, V
I
= 4.75 to 10 V 3.168 3.432 V
ΔV
O
Line regulation V
I
= 4.75 to 8 V, I
O
= 0 mA 1 6 mV
ΔV
O
Load regulation V
I
= 4.75 V, I
O
= 0 to 1 A 1 10 mV
ΔV
O
Temperature stability 0.5 %
ΔV
O
Long term stability 1000 hrs, T
J
= 125 °C 0.3 %
V
I
Operating input voltage I
O
= 100 mA 10 V
I
d
Quiescent current V
I
10 V, I
O
= 0 mA 5 10 mA
I
O
Output current V
I
- V
O
= 5 V, T
J
= 25 °C 1000 1200 mA
eN Output noise voltage B =10 Hz to 10 kHz, T
J
= 25 °C 100 µV
SVR Supply voltage rejection I
O
= 40 mA, f = 120 Hz
V
I
- V
O
= 3 V, V
ripple
= 1 V
PP
60 75 dB
V
D
Dropout voltage
I
O
= 100 mA 1 1.10
VI
O
= 500 mA 1.05 1.15
I
O
= 1 A 1.15 1.30
ΔV
O(pwr)
Thermal regulation T
a
= 25 °C, 30 ms pulse 0.08 0.2 %/W
Table 7. Electrical characteristics of LD1117A (adjustable)
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
REF
Reference voltage V
I
= 5.3 V, I
O
= 10 mA, T
J
= 25 °C 1.225 1.25 1.275 V
V
REF
Reference voltage I
O
= 10 mA to 1 A, V
I
= 2.75 to 10 V 1.2 1.3 V
ΔV
O
Line regulation V
I
= 2.75 to 8 V, I
O
= 0 mA 1 6 mV
DocID7194 Rev 26 9/24
LD1117A Electrical characteristics
24
ΔV
O
Load regulation V
I
= 2.75 V, I
O
= 0 to 1 A 1 10 mV
ΔV
O
Temperature stability 0.5 %
ΔV
O
Long term stability 1000 hrs, T
J
= 125 °C 0.3 %
V
I
Operating input voltage I
O
= 100 mA 10 V
I
adj
Adjustment pin current V
in
10 V 60 120 µA
ΔI
adj
Adjustment pin current
change V
in
- V
O
= 1.4 to 10 V, I
O
= 10 mA to 1 A 1 5 µA
I
O(min)
Minimum load current V
in
= 10 V 2 5 mA
I
O
Output current V
I
- V
O
= 5 V, T
J
= 25 °C 1000 1200 mA
eN Output noise voltage B =10 Hz to 10 kHz, T
J
= 25 °C 100 µV
SVR Supply voltage rejection I
O
= 40 mA, f = 120 Hz
V
I
- V
O
= 3 V, V
ripple
= 1 V
PP
60 80 dB
V
D
Dropout voltage
I
O
= 100 mA 1 1.10
VI
O
= 500 mA 1.05 1.15
I
O
= 1 A 1.15 1.30
ΔV
O(pwr)
Thermal regulation T
a
= 25 °C, 30 ms pulse 0.08 0.2 %/W
Table 7. Electrical characteristics of LD1117A (adjustable) (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
HE \ N GND + 7 + Twom i mom-— FLOATING INPUT 5003321 WM”: IN OUT GND :mow I scoazst V) le>11.5v \N :+ GND W I OUT + l100mr 5003291
Typical application LD1117A
10/24 DocID7194 Rev 26
6 Typical application
Figure 4. Negative supply
LD1117A
V
O
U
T
= - V
OUT(NOM)
Figure 5. Circuit for increasing output voltage
LD1117A
V
OUT
= V
OUT(NOM)
+ (0 - 5V)
Figure 6. Voltage regulator with reference
LD1117A
V
OUT
= V
OUT(NOM)
+ Vz
Vz
FEEDBACK PATH L 1’ wwoz MURMO a) + ‘ l:l g _ 470m? P, MURMO J—H IN OUT ‘ r: + fl GND ;fi0M i s: 470 F WNAODZ +v‘N q M 5 q SW‘TCH‘NG f MURMO IN OUT REGULATOR I ‘ . b (3ND + 10M L ‘ fifi g: _ (f scaaam
DocID7194 Rev 26 11/24
LD1117A Typical application
24
Figure 7. Post-regulated dual supply
LD1117A
V
OUT2
= V
OUT(NOM)
0.5 A
LD1117A
V
OUT1
V
OUT3
= -V
OUT(NOM)
0.5 A
IN OUT ‘ ) Vour ADJ mm R1 wzon VWEF I E R2 7 5mm VIN C IN our Vour 10M ADJ 10% R1 non U VREF I Em l:l I10M smssu
LD1117A adjustable: application note LD1117A
12/24 DocID7194 Rev 26
7 LD1117A adjustable: application note
The LD1117A adjustable has a thermal stabilized 1.25 ± 0.012 V reference voltage between
the OUT and ADJ pins. I
ADJ
is 60 µA typ. (120 µA max.) and ΔI
ADJ
is 1 µA typ. (5 µA max.).
R
1
is normally fixed to 120 Ω. From Figure 6 the following is obtained:
V
OUT
= V
REF
+ R
2
(I
ADJ
+ I
R1
) = V
REF
+ R
2
(I
ADJ
+V
REF
/R
1
) = V
REF
(1 + R
2
/ R
1
) + R
2
x
I
ADJ
.
In normal applications the R
2
value is in the range of a few kΩ, so the R
2
x I
ADJ
product can
not be considered in the V
OUT
calculation; the above expression then becomes:
V
OUT
= V
REF
(1 + R
2
/ R
1
).
In order to have a better load regulation it is important to realize a good Kelvin connection of
R
1
and R
2
resistors. In particular, the R
1
connection must be realized very close to the OUT
and ADJ pins, while the R
2
ground connection must be placed as near as possible to the
negative load pin. Ripple rejection can be improved by introducing a 10 µF electrolytic
capacitor placed in parallel to the R
2
resistor (see Figure 8).
Figure 8. Adjustable output voltage application
LD1117A
Figure 9. Adjustable output voltage application with improved ripple rejection
LD1117A
DocID7194 Rev 26 13/24
LD1117A Package mechanical data
24
8 Package mechanical data
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.
Table 8. TO-220 SG (single gauge) 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
E 10 10.40
e 2.40 2.70
e1 4.95 5.15
F 0.51 0.60
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
WP LZ L3 H1 Gate Rate 940 U 61
Package mechanical data LD1117A
14/24 DocID7194 Rev 26
Figure 10. TO-220 SG (single gauge) drawing
BUHY'
Y.
DocID7194 Rev 26 15/24
LD1117A Package mechanical data
24
Figure 11. SOT-223 mechanical data drawing
Table 9. SOT-223 mechanical data
Dim. mm
Min. Typ. Max.
A1.80
A1 0.02 0.1
B 0.60 0.70 0.85
B1 2.90 3.00 3.15
c 0.24 0.26 0.35
D 6.30 6.50 6.70
e2.30
e1 4.60
E 3.30 3.50 3.70
H 6.70 7.00 7.30
V10°
0046067_M
Package mechanical data LD1117A
16/24 DocID7194 Rev 26
Table 10. DPAK (TO-252) mechanical data
Dim. mm
Min. Typ. Max.
A2.20 2.40
A1 0.90 1.10
A2 0.03 0.23
b0.64 0.90
b4 5.20 5.40
c0.45 0.60
c2 0.48 0.60
D6.00 6.20
D1 5.10
E6.40 6.60
E1 4.70
e2.28
e1 4.40 4.60
H 9.35 10.10
L1.00 1.50
(L1) 2.80
L2 0.80
L4 0.60 1.00
R0.20
V2 0°
L2 b4 ”2 ‘4’, b 2x} 91 $.54 TING PLANE GAUGE P ' E THERMAL PAD
DocID7194 Rev 26 17/24
LD1117A Package mechanical data
24
Figure 12. DPAK (TO-252) drawing
0068772_K
63
Package mechanical data LD1117A
18/24 DocID7194 Rev 26
Figure 13. DPAK footprint
(a)
a. All dimensions are in millimeters
Footprint_REV_K
TOP COVER TAPE D { 7 ,E 01 H x ‘ j 4 <¥ e}="" «e?»="" e}="" e="" a="" a;="" \k¢="" 777="" o="" ‘="" 7|="" ‘="" ‘7="" ‘="" 1=""> 3* T\( G H < '="" w="" k0="">
DocID7194 Rev 26 19/24
LD1117A Packaging mechanical data
24
9 Packaging mechanical data
Figure 14. Tape for SOT-223 (dimensions are in mm)
Table 11. SOT-223 tape and reel mechanical data
Tape Reel
Dim. mm Dim. mm
Min. Typ. Max. Min. Max.
A0 6.75 6.85 6.95 A 180
B0 7.30 7.40 7.50 N 60
K0 1.80 1.90 2.00 W1 12.4
F 5.40 5.50 5.60 W2 18.4
E 1.65 1.75 1.85 W3 11.9 15.4
W 11.7 12 12.3
P2 1.90 2 2.10 Base quantity pcs 1000
P0 3.90 4 4.10 Bulk quantity pcs 1000
P1 7.90 8 8.10
T 0.25 0.30 0.35
D
f
1.50 1.55 1.60
D1
f
1.50 1.60 1.70
*Cumulative tolerance of 10 sprocket holes is ±0.20 mm
Packaging mechanical data LD1117A
20/24 DocID7194 Rev 26
Figure 15. Reel for SOT-223 (dimensions are in mm)
DocID7194 Rev 26 21/24
LD1117A Packaging mechanical data
24
Table 12. DPAK 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
D 1.5 1.6 D 20.2
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
O < ‘="" o="" fwa="" ,="" ,="" ‘="" ,0?="" a="" g="" ¢§‘+¢q§+¢q§$+o="">
Packaging mechanical data LD1117A
22/24 DocID7194 Rev 26
Figure 16. Tape for DPAK
Figure 17. Reel for DPAK
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
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
DocID7194 Rev 26 23/24
LD1117A Revision history
24
10 Revision history
Table 13. Document revision history
Date Revision Changes
29-Sep-2004 11 Add new part number.
12-Oct-2004 12 Mistake V
O
max. - Table 4.
21-Apr-2005 13 Add new package - D²PAK/A.
05-Jul-2005 14 The DPAK mechanical data updated.
10-Feb-2006 15 Add new package - D²PAK/A (B type).
20-Dec-2006 16 Change value V
IN
on Table 2.
19-Jan-2007 17 D²PAK/A mechanical data updated and add footprint data.
28-May-2007 18 Add I
ADJ
and ΔI
ADJ
values on Table 7.
07-Jun-2007 19 Add I
O(min)
value on Table 7.
15-Apr-2008 20 Modified: Table 10.
28-Jul-2009 21 Modified: Table 10.
05-Jul-2010 22 Added: Table 8 on page 15, Figure 14 on page 18, Figure 15 on page 20,
Figure 16 and Figure 17 on page 21.
16-Nov-2010 23 Modified: Table 1 on page 1, R
thJC
value for TO-220 Table 3 on page 5.
16-Dec-2011 24 Modified: V
O
parameter output voltage ==> Reference voltage Table 7 on
page 8.
19-Oct-2012 25 Added: R
thJA
value for DPAK and SOT-223 Table 3 on page 5.
24-Jul-2013 26
Part numbers LD1117AXX12, LD1117AXX18, LD1117AXX33, LD1117AXX
changed to LD1117A.
Modified Chapter 6: Typical application.
Changed Vo symbol in to V
REF
in Table 7: Electrical characteristics of LD1117A
(adjustable).
Updated Chapter 8: Package mechanical data.
Added Chapter 9: Packaging mechanical data.
Minor text changes.
ny
LD1117A
24/24 DocID7194 Rev 26

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