MIC5387
Ultra-Small Triple 150mA Output LDO
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 2.56mm
2
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
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
Micrel, Inc.
MIC5387
Ordering Information
Part Number
MIC5387-SGFYMT
MIC5387-SG4YMT
MIC5387-GMGYMT
MIC5387-GMMYMT
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.
®
®
Marking Code
8A7
8B7
8C7
8D7
V
OUT1
3.3V
3.3V
1.8V
1.8V
V
OUT2
1.8V
1.8V
2.8V
2.8V
V
OUT3
1.5V
1.2V
1.8V
2.8V
Temperature Range
−40°C
to
+125°C
−40°C
to
+125°C
−40°C
to
+125°C
−40°C
to
+125°C
Package
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
6-Pin 1.6mm x 1.6mm Thin MLF
®
Pin Configuration
6-Pin 1.6mm x 1.6mm Thin MLF
®
(MT)
Pin Description
Pin
Number
1
2
3
4
5
6
EP
Pin Names
GND
VIN
EN2/3
OUT3
OUT2
OUT1
HS Pad
Pin Function
Ground for LDO1, 2 and 3.
Input supply for LDO1, 2 and 3.
Enable Input 2/3: Enables LDO2 AND LDO3, Active High. High = ON; Low = OFF. Do not leave floating.
Output Voltage for LDO3.
Output Voltage for LDO2.
Output Voltage for LDO1.
Exposed Heastsink Pad (connect to Ground plane for best thermal).
April 2010
2
M9999-041610-A
Micrel, Inc.
MIC5387
Absolute Maximum Ratings
(1)
Supply Voltage (V
IN
) ........................................
−0.3V
to
+6V
Enable Voltage (V
EN2/3
)......................................
−0.3V
to V
IN
Power Dissipation (P
D
) ........................... Internally Limited
(3)
Lead Temperature (soldering, 10sec)........................ 260°C
Junction Temperature (T
J
) ........................
−40°C
to
+150°C
Storage Temperature (T
s
) .........................
−65°C
to
+150°C
ESD Rating
(4)
.................................................................. 2kV
Operating Ratings
(2)
Supply Voltage (V
IN
)......................................... 2.5V to 5.5V
Enable Voltage (V
EN2/3
) .......................................... 0V to V
IN
Junction Temperature (T
J
) ........................
−40°C
to
+125°C
Junction Thermal Resistance
6-Pin 1.6mm x 1.6mm Thin MLF
®
(θ
JA
) ..........92.4°C/W
Electrical Characteristics
(5)
V
IN
= V
EN2/3
= V
OUT
+
1V; highest of the three outputs; C
IN
= C
OUT1
= C
OUT2
= C
OUT3
= 1µF; I
OUT1
= I
OUT2
= I
OUT3
= 100µA;
T
J
= 25°C,
bold
values indicate
−40°C
to
+125°C,
unless noted.
Parameter
Output Voltage Accuracy
Line Regulation
Load Regulation
(6)
Condition
Variation from nominal V
OUT
Variation from nominal V
OUT
;
−40°C
to
+125°C
V
IN
= V
OUT
+1V
to 5.5V; I
OUT
= 100µA
I
OUT
= 100µA to 150mA
I
OUT
= 50mA; V
OUT
≥
2.8V
Dropout Voltage
(7)
I
OUT
= 150mA; V
OUT
≥
2.8V
I
OUT
= 50mA; V
OUT
<
2.8V
I
OUT
= 150mA; V
OUT
<
2.8V
Ground Pin Current
(8)
Ripple Rejection
Current Limit
Output Voltage Noise
Enable Input
Enable Input Voltage (V
EN2/3
)
Enable Input Current (V
EN2/3
)
Turn-on Time (V
OUT2
, V
OUT3
)
Logic Low
Logic High
V
IL
≤
0.2V
V
IH
≥
1.2V
C
OUT
= 1µF; I
OUT
= 150mA
1.2
0.01
0.01
50
1
1
125
0.2
V
V
µA
µA
µs
I
OUT
= 0mA; V
EN2/3
= 0V , V
OUT1
= On
I
OUT
= 0mA; V
OUT
> 1.3V V
EN2/3
= V
IN
f = up to 1kHz; C
OUT
= 1µF; V
OUT
<
2.5V
f = 1kHz
−
10kHz; C
OUT
= 1µF; V
OUT
<
2.5V
V
OUT
= 0V
C
OUT
= 1µF, 10Hz to 100kHz
200
Min.
–2.0
–3.0
0.02
0.65
55
155
60
180
32
96
70
60
325
200
550
110
310
135
380
40
120
Typ.
Max.
+2.0
+3.0
0.3
Units
%
%
%
%
mV
mV
mV
mV
µA
µA
dB
dB
mA
µV
RMS
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 T
A
(ambient temperature) is P
D(max)
= (T
J(max)
– T
A
) /
θ
JA
. 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, 1.5kΩ 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.
April 2010
3
M9999-041610-A
Micrel, Inc.
MIC5387
Typical Characteristics
Power Supply Rejection Ratio
(PSRR)
-100
-90
-80
-70
-60
dB
-50
-40
-30
-20
-10
0
10
100
1000
10000
100000
FREQUENCY(Hz)
V
OUT
=1.5V
C
OUT
=1µF
I
OUT
=150mA
I
OUT
=100µA
Dropout Voltage
vs. Output Current
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
0
0
20
200
180
DROPOUT VOLTAG (mV)
160
140
120
100
80
60
40
20
0
-40 -20
Dropout Voltage
vs. Temperature
V
OUT1
=3.3V
C
IN
=C
OUT1
=1µF
150mA
100mA
DROPOUT VOLTAGE (mV)
50mA
10mA
V
OUT1
=3.3V
C
IN
=C
OUT1
=1µF
40 60 80 100 120 140 160
OUTPUT CURRENT (mA)
0
20 40 60 80 100 120
TEMPERATURE(°C)
Ground Current (V
OUT1
=3.3V)
vs. Supply Voltage
40
150mA
GROUND CURRENT (µA)
120
Ground Current (All V
OUT
s)
vs. Supply Voltage
GROUND CURRENT ( µA)
Ground Current (V
OUT1
=3.3V)
vs. Temperature
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
150mA
38
GROUND CURRENT(µA)
36
50mA
34
32
30
100µA
28
26
2.5 2.8 3.1 3.4 3.7
4
V
EN2/3
=0V
V
OUT
=3.3V
C
IN
=C
OUT1
=1µF
Single Output
4.3 4.6 4.9 5.2 5.5
115
110
105
100
95
90
85
80
V
IN
=V
EN2/3=
4.3V
V
OUT1
=3.3V
150mA
50mA
100µA
50mA
100µA
V
IN
=4.3V
V
OUT
=3.3V
C
IN
=C
OUT1
=1µF
-40 -20
0
20 40 60 80 100 120
TEMPERATURE(°C)
V
OUT2
=1.8V V
OUT3
=1.5V
C
IN
=C
OUT1
=C
OUT2
=C
OUT3
=1µF
2.5 2.8 3.1 3.4 3.7 4 4.3 4.6 4.9 5.2 5.5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE(V)
Output Voltage (V
OUT1
=3.3V)
vs. Supply Voltage
3.5
3.4
OUTPUT VOLTAGE (V)
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.5
3
3.5
4
4.5
SUPPLY VOLTAGE (V)
5
5.5
C
IN
=C
OUT1
=1µF
V
OUT
=3.3V
150mA
50mA
100µA
Output Voltage (V
OUT2
=1.8V)
vs. Supply Voltage
1.9
OUTPUT VOLTAGE (V)
1.6
Output Voltage (V
OUT3
=1.5V)
vs. Supply Voltage
OUTPUT VOLTAGE (V)
1.85
1mA
1.55
1mA
1.5
`
150mA
1.45
50mA
1.8
150mA
1.75
50mA
V
EN2/3
=V
IN
V
OUT
=1.8V
C
IN
=C
OUT2
=1µF
1.7
2.5
3
3.5
4
4.5
5
5.5
SUPPLY VOLTAGE (V)
V
EN2/3
=V
IN
V
OUT
=1.5V
C
IN
=C
OUT3
=1µF
1.4
2.5
3
3.5
4
4.5
5
SUPPLY VOLTAGE (V)
5.5
Output voltage (V
OUT3
=1.2V)
vs. Supply Voltage
1.3
3.5
3.4
3.3
Output Voltage (V
OUT1
=3.3V)
vs. Temperature
2
1.8
1.6
1.4
1.2
1
Output Voltage (V
OUT2
=1.8V)
vs. Temperature
1.25
1mA
1.2
150mA
50mA
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
OUTPUT VOLTAGE (V)
3.2
3.1
3
1.15
V
EN2/3
=V
IN
V
OUT
=1.2V
C
IN
=C
OUT3
=1µF
V
IN
=4.3V
V
OUT
=3.3V
C
IN
=C
OUT1
=1µF
I
OUT1
=150mA
V
IN
=V
EN2/3
=2.8V
V
OUT
=1.8V
C
IN
=C
OUT2
=1µF
I
OUT2
=150mA
-40
-20
0
20
40
60
80
100 120
1.1
2.5
3
3.5
4
4.5
5
5.5
SUPPLY VOLTAGE (V)
-40 -20
0
20 40 60 80
TEMPERATURE(°C)
100 120
TEMPERATURE(°C)
April 2010
4
M9999-041610-A
Micrel, Inc.
MIC5387
Typical Characteristics (Continued)
Output Voltage (V
OUT3
=1.5V)
vs. Temperature
1.7
OUTPUT VOLTAGE (V)
1.4
Output Voltage (V
OUT
=1.2V)
vs. Temperature
Current Limit
vs. InputVoltage
380
V
OUT1
=3.3V
OUTPUT VOLTAG (V)
1.6
1.3
CURRENT LIMIT (mA)
360
340
V
OUT3
=1.5V
1.5
V
IN
=V
EN2/3
=2.5V
1.4
V
OUT
=1.5V
C
IN
=C
OUT3
=1µF
I
OUT3
=150mA
1.3
-40 -20
0
20
40
60
80
100 120
TEMPERATURE(°C)
1.2
V
IN
=V
EN2/3
=2.5V
V
OUT
=1.2V
C
IN
=C
OUT3
=1µF
1
-40
-20
0
20
40
60
80
100 120
TEMPERATURE(°C)
320
V
OUT2
=1.8V
300
1.1
V
EN2/3
=V
IN
C
IN
=C
OUT1
=C
OUT2
=C
OUT3
=1µF
280
2
2.5
3
3.5
4
4.5
INPUT VOLTAGE (V)
5
5.5
Output Noise
Spectral Density
1
1
Output Noise
SpectralDensity
NOISE uV/√Hz
V
IN
=V
EN2/3
=5V
V
OUT3
=1.5V
0.01
C
OUT3
=1µF
I
OUT3
=100µA
OUTPUT VOLTAGE
NOISE=152µVrms
NOISE uV/√Hz
0.1
0.1
V
IN
=V
EN2/3
=5V
V
OUT3
=1.5V
C
OUT3
=1µF
I
OUT3
=150mA
OUTPUT VOLTAGE NOISE=125uVrms
0.001
10
100
1,000
10,000
100,000
FREQUENCY (Hz)
0.01
10
100
1,000
10,000
FREQUENCY (Hz)
100,000
April 2010
5
M9999-041610-A
嵌入式系统
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