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MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator
Monolithic IC MM1320
Outline
This IC is a microminiature low-noise stabilized power supply device featuring a highly precise output voltage
and a small input/output voltage difference of only 0.15V at an output current of 60mA.
The IC delivers output currents of up to 200mA, and through use of a noise pin output noise is diminished
even further. An on/off pin can be used to turn the output on and off.
Features
1. Input/output voltage difference 0.15V typ. (IO=60mA)
2. Output noise voltage 30µV
RMS typ. (Cn=0.01µF)
3. Maximum output current 150mA max.
4. No-load input current 170µA typ.
5.
With internal overcurrent protection and thermal shutdown circuits
6. Output voltage ranks 2~3.3V (0.1 V steps)
3.5V, 4V, 4.5V, 5V
7. Output on/off control function High : ON, Low : OFF
Package
SOT-25A (MM1320 N)
*
The output voltage rank appears in the boxes.
Applications
1. Cordless phones
2. Portable phones, PHS
3. Portable minidiscs
4. Other portable equipment which uses batteries
Pin Assignment
1 CONT
2 GND
3 NOISE
4 V
OUT
5 VIN
54
123
SOT-25A
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MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
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
Recommended Operating Conditions
Item Symbol Ratings Units
Operating temperature T
OPS
-
20~+75 °C
Output current I
OPS 150 mA
Operating voltage V
OP 1.8~10 V
Absolute Maximum Ratings
Equivalent Circuit Diagram
(MM1320)
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MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Item Symbol Measurement conditions Min. Typ. Max. Units
Output voltage Vo V
IN=VOUT+1V, Io=30mA
V
OUT
-2%VOUT
V
OUT
+2%
V
No-load consumption current Iccq1 V
IN=VOUT+1V, Io=0mA 170 340 µA
Input current while off Iccq2 V
IN=VOUT+1V, Vcont=0V 1 µA
I/O voltage difference Vd min. V
IN=VOUT
-
0.2V, Io=60mA 0.15 0.25 V
Input fluctuations V1
VIN=V
OUT
+1V~5V, Io=30mA
10 20 mV
Load fluctuation V2
Io=0~100mA, VIN=V
OUT
+1V
30 60 mV
Output voltage temperature coefficient
Vo/ T
Tj
=-20~+75°C,
Io=30mA
100
ppm/°C
VIN=VOUT+1V
Ripple rejection rate RR
VIN=V
OUT
+1V,
f=120Hz
50
60
dB
V
RIPPLE=1V, Io=30mA
Output noise voltage Vn
VIN=V
OUT
+1V,
f=20~80kHz 30
µVrms
Io=30mA, Cnoise=0.01
uF
(3V item)
CONT pin current while off IOFF Vcont=0.4V 1 3 µA
C
ONT pin current while on ION Vcont=1.6V 5 10 µA
C
ONT pin high level H 1.6
VIN+0.3
V
C
ONT pin low level L
-
0.3 0.4 V
Electrical Characteristics
(Except where noted otherwise, Ta=25°C)
Measuring Circuit
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MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Characteristics
(MM1320)
Output voltage rank
I/O voltage difference Allowable loss
Output voltage temperature characteristic
No-load consumption current
VIN=2.8V
0.3
0.4
0.5
0.2
0.1
0
0 20406080100
Output voltage (mA)
I/O voltage difference (mA)
300
400
500
200
100
0
-25 0 25 50 75 100 125
Ambient temperature (°C)
Unit
with board mounted
Allowable loss (mW)
Board:60 40 1.6tmm
3.1
3.2
3.0
2.9
2.8
-
25 0 25 75 100 125
VIN=4V, IOUT=30mA
Ambient temperature (°C)
Output voltage (V)
1.5
2.0
1.0
0.5
0
024681012
Input voltage (V)
IOUT=0mA
Consuption current (mA)
Rnak Voltage Rnak Voltage
A 5.0V K 2.8V
B 4.5V L 2.7V
C 4.0V M 2.6V
D 3.5V N 2.5V
E 3.3V P 2.4V
F 3.2V R 2.3V
G 3.1V S 2.2V
H 3.0V T 2.1V
J 2.9V U 2.0V
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MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Load fluctuation Current limit
Ripple rejection rate Input transient response
VIN=4V
20
40
-
20
-
40
0 2040 6080100
Output current (mA)
0
Output voltage (mV)
VIN=4V
3
4
5
2
1
0
0
50 100 150 200 250
Output current (mA)
Output voltage (V)
VIN=4V, IOUT=30mA
60
80
40
20
100100 1k 10k 100k 1M
Frequency (Hz)
Ripple rejection rate (dB)
IOUT=60mA
20mV
50µS
6V
7V
Input voltage (V) Input voltage (V)
Output voltage Input fluctuction
3
4
5
2
1
0
024681012
Input voltage (mA)
IOUT=30mA
Output voltage (V)
IOUT=30mA
10
20
0
-
10
4681012
Input voltage (V)
Output voltage (mV)
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MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Output noise voltage Input transient response
VIN=4V, IOUT=30mA
75
100
50
25
0
0.0001 0.001 0.01 0.1
Noise pin capacitance (µF)
Output noise voltage (µVrms)
VIN=4V
20mV
20µS
50mA
100mA
Output voltage (V) Output current (mA)
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