MIC5387 Datasheet by Microchip Technology

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EMERELE 2 5w To 5 5w DTIN E“ D— EN2I3 M|C5387 GND OUT1 OUTQ cum 3 3qu:
MIC5387
Ultra-Small Triple 150mA Output LDO
MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
April 2010 M9999-041610-A
General Description
The MIC5387 is an advanced, general-purpose, triple
linear regulator offering high power supply rejection
(PSRR) in an ultra-small, 6-pin, 1.6mm x 1.6mm Thin
MLF® package. The MIC5387 is capable of 150mA from
each output and offers high PSRR, making it an ideal
solution for any portable electronic application.
Ideal for battery powered applications, the MIC5387 offers
2% initial accuracy, low dropout voltage (180mV @
150mA), and low ground current (typically 32µA per
output).
The MIC5387 is available in a lead-free (RoHS compliant)
1.6mm x 1.6mm 6-pin Thin MLF® occupying only 2.56mm2
of PCB area, a 36% reduction in board area compared to a
2mm x 2mm Thin MLF® package.
The MIC5387 has an operating junction temperature range
of 40°C to +125°C.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
Input voltage range: 2.5V to 5.5V
150mA guaranteed output current for each output
Stable with ceramic output capacitors
Low dropout voltage: 180mV @ 150mA
Excellent Load/Line Transient Response
Low quiescent current: 32µA per LDO
High PSRR: 70dB
High output accuracy
– ±2% initial accuracy
Thermal-shutdown and current-limit protection
Available in a tiny 6-pin 1.6mm x 1.6mm Thin MLF®
Applications
Mobile phones
Digital cameras
GPS, PDAs, PMP
Portable electronics
___________________________________________________________________________________________________________
Typical Application
Micrel, Inc. MIC5387
April 2010 2 M9999-041610-A
Ordering Information
Part Number Marking Code VOUT1 V
OUT2 V
OUT3 Temperature Range Package
MIC5387-SGFYMT 8A7 3.3V 1.8V 1.5V 40°C to +125°C 6-Pin 1.6mm x 1.6mm Thin MLF®
MIC5387-SG4YMT 8B7 3.3V 1.8V 1.2V 40°C to +125°C 6-Pin 1.6mm x 1.6mm Thin MLF®
MIC5387-GMGYMT 8C7 1.8V 2.8V 1.8V
40°C to +125°C 6-Pin 1.6mm x 1.6mm Thin MLF®
MIC5387-GMMYMT 8D7 1.8V 2.8V 2.8V 40°C to +125°C 6-Pin 1.6mm x 1.6mm Thin MLF®
Notes:
1. Other voltages available. Contact Micrel for details.
2. MLF® = Pin 1 identifier.
3. MLF® is a GREEN RoHS-compliant package. Lead finish is NiPdAu. Mold compound is Halogen Free.
Pin Configuration
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
Pin Description
Pin
Number Pin Names Pin Function
1 GND Ground for LDO1, 2 and 3.
2 VIN Input supply for LDO1, 2 and 3.
3 EN2/3 Enable Input 2/3: Enables LDO2 AND LDO3, Active High. High = ON; Low = OFF. Do not leave floating.
4 OUT3 Output Voltage for LDO3.
5 OUT2 Output Voltage for LDO2.
6 OUT1 Output Voltage for LDO1.
EP HS Pad Exposed Heastsink Pad (connect to Ground plane for best thermal).
Micrel, Inc. MIC5387
April 2010 3 M9999-041610-A
Absolute Maximum Ratings(1)
Supply Voltage (VIN)........................................ 0.3V to +6V
Enable Voltage (VEN2/3)...................................... 0.3V to VIN
Power Dissipation (PD)........................... Internally Limited(3)
Lead Temperature (soldering, 10sec)........................ 260°C
Junction Temperature (TJ) ........................ 40°C to +150°C
Storage Temperature (Ts) ......................... 65°C to +150°C
ESD Rating(4).................................................................. 2kV
Operating Ratings(2)
Supply Voltage (VIN)......................................... 2.5V to 5.5V
Enable Voltage (VEN2/3) .......................................... 0V to VIN
Junction Temperature (TJ) ........................ 40°C to +125°C
Junction Thermal Resistance
6-Pin 1.6mm x 1.6mm Thin MLF® (θJA) ..........92.4°C/W
Electrical Characteristics(5)
VIN = VEN2/3 = VOUT + 1V; highest of the three outputs; CIN = COUT1 = COUT2 = COUT3 = 1µF; IOUT1 = IOUT2 = IOUT3 = 100µA;
TJ = 25°C, bold values indicate 40°C to +125°C, unless noted.
Parameter Condition Min. Typ. Max. Units
Variation from nominal VOUT –2.0 +2.0 %
Output Voltage Accuracy Variation from nominal VOUT; 40°C to +125°C –3.0 +3.0 %
Line Regulation VIN = VOUT +1V to 5.5V; IOUT = 100µA 0.02
0.3 %
Load Regulation(6) I
OUT = 100µA to 150mA 0.65 %
IOUT = 50mA; VOUT 2.8V 55
110 mV
IOUT = 150mA; VOUT 2.8V 155
310 mV
IOUT = 50mA; VOUT < 2.8V 60
135 mV
Dropout Voltage(7)
IOUT = 150mA; VOUT < 2.8V 180
380 mV
IOUT = 0mA; VEN2/3 = 0V , VOUT1 = On 32 40 µA
Ground Pin Current (8) IOUT = 0mA; VOUT > 1.3V VEN2/3 = VIN 96
120 µA
f = up to 1kHz; COUT = 1µF; VOUT < 2.5V 70 dB
Ripple Rejection f = 1kHz 10kHz; COUT = 1µF; VOUT < 2.5V 60 dB
Current Limit VOUT = 0V 200 325 550 mA
Output Voltage Noise COUT = 1µF, 10Hz to 100kHz 200 µVRMS
Enable Input
Logic Lo
w
0.2 V
Enable Input Voltage (VEN2/3) Logic High 1.2 V
VIL 0.2V 0.01
1 µA
Enable Input Current (VEN2/3) VIH 1.2V 0.01
1 µA
Turn-on Time (VOUT2, VOUT3) COUT = 1µF; IOUT = 150mA 50 125 µs
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any TA (ambient temperature) is PD(max) = (TJ(max) – TA) / θJA. Exceeding the maximum allowable power
dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown.
4. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
5. Specification for packaged product only.
6. Regulation is measured at constant junction temperature using low duty cycle pulse testing, changes in output voltage due to heating effects are
covered by the thermal regulation specification.
7. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V
differential. For outputs below 2.5V, dropout voltage is the input-to-output differential with the minimum input voltage 2.5V.
8. Ground-pin current is the regulator quiescent current. The total current drawn from the supply is the sum of the load current plus the ground-pin
current.
Micrel, Inc. MIC5387
April 2010 4 M9999-041610-A
Typical Characteristics
Ground Current (V
OUT1
=3.3V)
vs. Supply Voltage
26
28
30
32
34
36
38
40
2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5
SUPPLY VOLTAGE(V)
GROUND CURRENT(µA)
100
µ
A
50mA
150mA
V
EN2/3
=0V
V
OUT
=3.3V
C
IN
=C
OUT1
=1µF
Single Output
Power Supply Rejection Ratio
(PSRR)
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000
FREQUENCY(Hz)
dB
I
OUT
=100µA
I
OUT
=150mA
V
OUT
=1.5V
C
OUT
=1µF
Dropout Voltage
vs. Output Current
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
0 20 40 60 80 100 120 140 160
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE (mV
)
V
OUT1
=3.3V
C
IN
=C
OUT1
=1µF
Ground Current (All V
OUT
s)
vs. Supply Voltage
80
85
90
95
100
105
110
115
120
2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5
SUPPLY VOLTAGE (V)
GROUND CURRENT (µA)
150mA
50mA
100µA
V
IN
=V
EN2/3=
4.3V
V
OUT1
=3.3V
V
OUT2
=1.8V V
OUT3
=1.5V
C
IN
=C
OUT1
=C
OUT2
=C
OUT3
=1µF
Dropout Voltage
vs. Temperature
0
20
40
60
80
100
120
140
160
180
200
-40-20 0 20406080100120
TEMPERATURE(°C)
DROPOUT VOLTAG (mV
)
150mA
100mA
50mA
10mA
V
OUT1
=3.3V
C
IN
=C
OUT1
=1µF
Ground Current (V
OUT1
=3.3V)
vs. Temperature
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
GROUND CURRENT ( µA)
V
IN
=4.3V
V
OUT
=3.3V
C
IN
=C
OUT1
=1µF
50mA 100µA
150mA
Output Voltage (V
OUT1
=3.3V)
vs. Supply Voltage
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE (V)
50mA
100µA
150mA
C
IN
=C
OUT1
=1µF
V
OUT
=3.3V
Output Voltage (VOUT2=1.8V)
vs. Supply Voltage
1.7
1.75
1.8
1.85
1.9
2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE (V)
1mA
50mA
150mA
V
EN2/3
=V
IN
V
OUT
=1.8V
C
IN
=C
OUT2
=1µF
Output Voltage (V
OUT3
=1.5V)
vs. Supply Voltage
1.4
1.45
1.5
1.55
1.6
2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE (V)
`
1mA 50mA
150mA
V
EN2/3
=V
IN
V
OUT
=1.5V
C
IN
=C
OUT3
=1µF
Output voltage (V
OUT3
=1.2V)
vs. Supply Voltage
1.1
1.15
1.2
1.25
1.3
2.5 3 3.5 4 4.5 5 5.5
SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE (V)
1mA
150mA
V
EN2/3
=V
IN
V
OUT
=1.2V
C
IN
=C
OUT3
=1µF
50mA
Output Voltage (V
OUT1
=3.3V)
vs. Temperature
3
3.1
3.2
3.3
3.4
3.5
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
OUTPUT VOLTAGE (V)
V
IN
=4.3V
V
OUT
=3.3V
C
IN
=C
OUT1
=1µF
I
OUT1
=150mA
Output Voltage (V
OUT2
=1.8V)
vs. Temperature
1
1.2
1.4
1.6
1.8
2
-40 -20 0 20 40 60 80 100 120
TEMPERATUREC)
OUTPUT VOLTAGE (V)
V
IN
=V
EN2/3
=2.8V
V
OUT
=1.8V
C
IN
=C
OUT2
=1µF
I
OUT2
=150mA
1 1-. -—.
Micrel, Inc. MIC5387
April 2010 5 M9999-041610-A
Typical Characteristics (Continued)
Output Voltage (VOUT3=1.5V)
vs. Temperature
1.3
1.4
1.5
1.6
1.7
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
OUTPUT VOLTAG (V)
V
IN
=V
EN2/3
=2.5V
V
OUT
=1.5V
C
IN
=C
OUT3
=1µF
I
OUT3
=150mA
Output Voltage (V
OUT
=1.2V)
vs. Temperature
1
1.1
1.2
1.3
1.4
-40 -20 0 20 40 60 80 100 120
TEMPERATURE(°C)
OUTPUT VOLTAGE (V)
V
IN
=V
EN2/3
=2.5V
V
OUT
=1.2V
C
IN
=C
OUT3
=1µF
Current Limit
vs. InputVoltage
280
300
320
340
360
380
22.533.544.555.5
INPUT VOLTAGE (V)
CURRENT LIMIT (mA)
VOUT1=3.3V
VOUT3=1.5V
VOUT2=1.8V
VEN2/3=VIN
CIN=COUT1=COUT2=COUT3=1µF
Output Noise
Spectral Density
0.001
0.01
0.1
1
10 100 1,000 10,000 100,000
FREQUENCY (Hz)
NOISE uV/Hz
V
IN
=V
EN2/3
=5V
V
OUT3
=1.5V
C
OUT3
=1µF
I
OUT3
=100µA
OUTPUT VOLTAGE
NOISE=152µVrms
Output Noise
SpectralDensity
0.01
0.1
1
10 100 1,000 10,000 100,000
FREQUENCY (Hz)
NOISE uV/Hz
V
IN
=V
EN2/3
=5V
V
OUT3
=1.5V
C
OUT3
=1µF
I
OUT3
=150mA
OUTPUT VOLTAGE NOISE=125uVrms
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Micrel, Inc. MIC5387
April 2010 6 M9999-041610-A
Functional Characteristics
va ENzra I LDO1 REFERENCE LD02 REFERENCE LD03 GND oun OUTZ OUT3
Micrel, Inc. MIC5387
April 2010 7 M9999-041610-A
Block Diagram
Micrel, Inc. MIC5387
April 2010 8 M9999-041610-A
Application Information
MIC5387 is a triple-output, low-noise 150mA LDO. The
MIC5387 regulator is fully protected from damage due to
fault conditions, offering linear current limiting and
thermal shutdown.
Input Capacitor
The MIC5387 is a high-performance, high-bandwidth
device. An input capacitor of 1µF is required from the
input-to-ground to provide stability. Low-ESR ceramic
capacitors provide optimal performance at a minimum of
space. Additional high-frequency capacitors – such as
small-valued NPO dielectric-type capacitors – help filter
out high-frequency noise and are good practice in any
RF-based circuit. X5R or X7R dielectrics are
recommended for the input capacitor. Y5V dielectrics
lose most of their capacitance over temperature and are,
therefore, not recommended.
Output Capacitor
The MIC5387 requires an output capacitor of 1µF or
greater for each output to maintain stability. The design
is optimized for use with low-ESR ceramic chip
capacitors. High-ESR capacitors are not recommended
because they may cause high-frequency oscillation. The
output capacitor can be increased, but performance has
been optimized for a 1µF ceramic output capacitor and
does not improve significantly with larger capacitance.
X7R/X5R dielectric-type ceramic capacitors are
recommended because of their temperature
performance. X7R-type capacitors change capacitance
by 15% over their operating temperature range and are
the most stable type of ceramic capacitors. Z5U and
Y5V dielectric capacitors change value by as much as
50% and 60%, respectively, over their operating
temperature ranges. To use a ceramic chip capacitor
with Y5V dielectric, the value must be much higher than
an X7R ceramic capacitor to ensure the same minimum
capacitance over the equivalent operating temperature
range.
No-Load Stability
Unlike many other voltage regulators, the MIC5387 will
remain stable and in regulation with no load. This is
especially important in CMOS RAM keep-alive
applications.
Enable/Shutdown
The MIC5387 comes with an active-high enable (EN2/3)
pin that allows the regulator to be disabled for outputs 2
and 3. Forcing the enable pin high enables the output
voltage. The active-high enable pin uses CMOS
technology and the enable pin cannot be left floating; a
floating enable pin may cause an indeterminate state on
the output. The output OUT1 does not have an enable pin
and is always enabled when VIN is above the minimum
supply voltage of 2.5V.
Thermal Considerations
The MIC5387 is designed to provide three outputs up to
150mA each of continuous current in a very small
package. Maximum ambient operating temperature can
be calculated based on the output current and the
voltage drop across the part. For example, if the input
voltage is 3.3V and the output voltages are 1.8V, 2.8V
and 2.8V each with an output current = 150mA. The
actual power dissipation of the regulator circuit can be
determined using the equation:
PD = (VIN VOUT1) I OUT1 +
(VIN VOUT2) I OUT2 +
(VIN VOUT3) I OUT3 + VIN IGND
As the MIC5387 is a CMOS device, the ground current is
typically <100µA over the load range, the power
dissipation contributed by the ground current is <1% and
may be ignored for this calculation:
P
D = (3.3V 1.8V)150mA + (3.3V-2.8V)150mA +
(3.3V 2.8V)150mA
P
D = 0.375W
To determine the maximum ambient operating
temperature of the package, use the junction-to-ambient
thermal resistance of the device and the following basic
equation:
=
JA
AJ
D
θ
TT
P(MAX)
(MAX)
TJ(MAX) = 125°C, the maximum junction temperature of the
die, and θJA thermal resistance = 92.4°C/W for the Thin
MLF® package.
hflg://www.micrel.com/ PDF/other/LDOBK ds.gdf
Micrel, Inc. MIC5387
April 2010 9 M9999-041610-A
Substituting PD for PD(max) and solving for the ambient
operating temperature will give the maximum operating
conditions for the regulator circuit.
The maximum power dissipation must not be exceeded
for proper operation.
For example, when operating the MIC5387-SGFYMT at
an input voltage of 3.3V and 450mA load with a
minimum footprint layout, the maximum ambient
operating temperature TA can be determined as follows:
0.375W = (125°C TA) / (92.4°C/W)
T
A = 90.35°C
Therefore, the maximum ambient operating temperature
of 90.35°C is allowed in a 1.6mm x 1.6mm thin MLF®
package. For a full discussion of heat sinking and
thermal effects on voltage regulators, refer to the
“Regulator Thermals” section of Micrel’s Designing with
Low-Dropout Voltage Regulators handbook. This
information can be found on Micrel's website at:
http://www.micrel.com/_PDF/other/LDOBk_ds.pdf
U1 MIC5387-xxxYMT 2 5VIN T0 5 5V‘N DTIN C1 luF D— EN2/3 (3ND 0UT1 OUTZ OUT3 Voun (:2 1pF VOL/Y2 f q—‘n $1“ Vow: fl C4 1uF <1—1>
Micrel, Inc. MIC5387
April 2010 10 M9999-041610-A
Typical Application
Bill of Materials
Item Part Number Manufacturer Description Qty.
C1,C2,C3,C4 C1005X5R1A105K TDK(1) Capacitor, 1µF Ceramic, 10V, X5R, Size 0402 4
U1 MIC5387-xxxYMT Micrel, Inc.(2) Ultra-Small Triple 150mA Output LDO 1
Notes:
1. TDK: www.tdk.com
2. Micrel, Inc.: www.micrel.com
Micrel, Inc. MIC5387
April 2010 11 M9999-041610-A
PCB Layout Recommendations (1.6mm x 1.6mm Thin MLF®)
Top Layer
Bottom Layer
1,6010 BS 6 1.60t0.05 4 l 1 2 PIN 1 TRIANGLE BY MARKING THP VTFW as; 0152 Rev?— Aonmnns SIDE VIEW 12610.05 Exp. BAP ' 0‘50 380 A 0251005 I I PIN M 11) R0100 a a o / 05020.05 Exp. BAP / m m m 100 Ref m mm 1, ML ummsmm ARE IN MILLIHETERS‘ 2 mx mm: Mama [3 o.n5 nn. 3 mxmun ALLUVABE mm: [3 nms nn IN ALL nmzcnuus A PM u 0: EN mp win. a: LASER/INK magma. DKMENSIEIN mums m METAUZED TERMINAL mm x: MEASURED nzwzzu 020 mm 025 rm mm vzmm. up % APPLIED DNLY ma YERMINALS‘ APPLIED FDR EXFDSED PAD mm vzxnmALs,
Micrel, Inc. MIC5387
April 2010 12 M9999-041610-A
Package Information
6-Pin 1.6mm x 1.6mm Thin MLF® (MT)
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL +1 (408) 944-0800 FAX +1 (408) 474-1000 WEB http://www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its
use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product
can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant
into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A
Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully
indemnify Micrel for any damages resulting from such use or sale.
© 2010 Micrel
,
Incor
p
orated.

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