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MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Microminiature Low-Power Consumption Low-Saturation Regulator
Monolithic IC MM1385
Outline
This IC is a microminiature stabilized power supply device featuring an output voltage precision of within ±2%
and output currents of up to 200mA; the input/output voltage difference at 50mA is only 0.1V.
This chip is provided with an output noise reduction pin and output on/off control pin, and is ideal for use in
portable equipment.
Features
1. No-load input current 95µA typ.
2. I/O voltage difference 0.1V typ.(Io=50mA)
3. Ripple rejection ratio 70dB typ.
4. Output current 150mA max.
5. Output noise voltage 35µVrms typ.
6. Output voltage rank 2~3.3V(0.1V step), 3.5V/3.8V/4V/4.2V/4.5V/4.8V/5V/5.2V
7. Output on/off control High ON, Low OFF
Package
SOT-25A (MM1385 N)
*
The output voltage rank appears in the boxes.
Pin Assignment
13
5
2
4
SOT-25A
Applications
1. Cordless phones
2. Portable phones, PHS
3. Portable minidiscs
4. Other portable equipment which uses batteries
1 CONT
2 GND
3 NOISE
4 V
OUT
5 VIN
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MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Block Diagram
Absolute Maximum Ratings
Recomnended Operating Conditions
Item Symbol Ratings Units
Storage temperature T
STG
-
40~+125 °C
Operating temperature T
OPR
-
20~+75 °C
Power supply current V
CC
-
0.3~+12 V
Output current I
OUT 200 mA
Power consumption Pd 150 mW
Item Symbol Ratings Units
Operating temperature Top
-
20~+75 °C
Output current Iop 0~150 mA
Operating voltage Vop 1.8~12 V
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MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
Measuring Circuit
Electrical
Electrical Characteristics
(Except where noted otherwise,Ta=25°C)
Item Symbol Measurement conditions Min. Typ. Max. Units
Output voltage Vo V
IN=Vo+1V, Io=30mA, VOUT V
No-load consumption current Iccq1 V
IN=Vo+1V, Io=0mA 95 190 µA
Input current while off Iccq2 V
IN=Vo+1V, VCONT=0V 0.1 µA
I/O voltage difference Vd min. V
IN=Vo
-
0.2V, Io=50mA 0.1 0.2 V
Input fluctuations V1 V
IN=Vo+1V~10V, Io=50mA 10 20 mV
Load fluctuation V2 V
IN=Vo+1V, Io=0~100mA 30 60 mV
Output voltage temperature coefficient
Vo/ T
Tj=-20~+75°C, VIN=Vo+1V, Io=30mA
100
ppm/°C
Ripple rejection rate RR
VIN=Vo+1V, Io=30mA, V
RIPPLE
=1V
P-P
, f=120Hz
50 70 dB
Output noise voltage Vn
VIN=Vo+1V, f=20~80kHz, Io=30mA, Cn=0.01µF
µVrms
CONT pin current while on ION VCONT=1.6V 5 10 µA
C
ONT pin high level H 1.6 V
C
ONT pin low level L
-
0.3 0.4 V
VOUT
-
2%
V
OUT
+2%
35
(3V item)
VIN
+0.3V
Output Voltage Rank
Rank Voltage Rank Voltage
W 5.2V G 3.1V
A 5.0V H 3.0V
Z 4.8V J 2.9V
X 4.6V K 2.8V
B 4.5V L 2.7V
V 4.2V M 2.6V
C 4.0V N 2.5V
Y 3.8V P 2.4V
I 3.6V R 2.3V
D 3.5V S 2.2V
E 3.3V T 2.1V
F 3.2V U 2.0V
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MITSUMI
Microminiature Low-Power Consumption Low-Saturation Regulator MM1385
No-load input current Ripple rejection rate
(VIN=4V, IO=30mA, Vripple=1V, C
OUT
=4.7µF)
0246810
0
0.5
1
02 6810
1.5
2
Input voltage (V)
Consuption current (mA)
10 100 1k 10k
100k 1M
-
100
-
90
-
80
-
70
-
60
-
50
-
40
-
30
-
20
-
10
0
Frequency (Hz)
Ripple rejection rate (Hz)
Consuption current (VIN=4V)
Output noise voltage
(V
IN
=4V, IO=30mA, C
OUT
=4.7µ
F)
000 20 40 60 80 100 120 140 160
0
1
2
3
4
5
6
7
8
9
Output current (mA)
Consuption current (mA)
0.10.010.001
0
20
40
60
80
100
Noise pin capacitance (µF)
Output noise
voltage (µVrms)
I/O voltage difference (VIN=2.8V)
Input fluctuation (IO=30mA)
0
0
0.05
0.1
0.15
0.2
0.25
0.3
0 20406080
100 120 140 160 180 200
Output current (mA)
I/O voltage difference (V)
4 5 6 7 8 9 1011121314
-
20
-
10
0
10
20
Input voltage (V)
Input fiuctuation (mV)
Current limit (VIN=4V)
Load fluctuation rate (VIN=4V)
0 50 100 150 200 250 300
0
0.5
1
1.5
2
2.5
3
3.5
Output current (mA)
Output voltage (V)
0 20 40 60 80 100 120 140 160 180 200
-
60
-
50
-
40
-
30
-
20
-
10
0
10
20
Output current (mA)
Load fiuctuation rate (mV)
Characteristics
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