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 rated 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. (I
O
=60mA)
2. Output noise voltage
30Vrms typ. (Cn=0.01F)
3. Recommended maximum output current
150mA max.
4. No-load input current
170A 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
C
ONT
2
GND
3
NOISE
4
V
OUT
5
V
IN
5
4
1
2
3
SOT-25A
(TOP VIEW)
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)
MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Item
Symbol
Measurement conditions
Min.
Typ.
Max. Units
Output voltage
Vo
V
IN
=V
OUT
+1V, Io=30mA
V
OUT
-2% V
OUT
V
OUT
+2%
V
No-load consumption current
Iccq1
V
IN
=V
OUT
+1V, Io=0mA
170
340
A
Input current while off
Iccq2
V
IN
=V
OUT
+1V, Vcont=0V
1
A
I/O voltage difference
Vd min.
V
IN
=V
OUT
-0.2V, Io=60mA
0.15
0.25
V
Input fluctuations
V1
V
IN
=V
OUT
+1V~5V, Io=30mA
10
20
mV
Load fluctuation
V2
Io=0~100mA, V
IN
=V
OUT
+1V
30
60
mV
Output voltage temperature coefficient
Vo/ T
Tj=-20~+75C, Io=30mA
100
ppm/C
V
IN
=V
OUT
+1V
Ripple rejection rate
RR
V
IN
=V
OUT
+1V, f=120Hz
50
60
dB
V
RIPPLE
=1V, Io=30mA
Output noise voltage
Vn
V
IN
=V
OUT
+1V, f=20~80kHz
30
Vrms
Io=30mA, Cnoise=0.01uF
(3V item)
C
ONT
pin current while off
I
OFF
Vcont=0.4V
1
3
A
C
ONT
pin current while on
I
ON
Vcont=1.6V
5
10
A
C
ONT
pin high level
H
1.6
V
IN
+0.3
V
C
ONT
pin low level
L
-0.3
0.4
V
Electrical Characteristics
(Except where noted otherwise, Ta=25C)
Measuring Circuit
Note : The cause of oscillation is due to set wiring and capacitance changes in capacitor caused by temperatures changes, so
please take extra care in placing the wires.
MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Characteristics
(Represent model MM1320H)
Output voltage rank
I/O voltage difference
Allowable loss
Output voltage temperature characteristic
No-load consumption current
V
IN
=2.8V
0.3
0.4
0.5
0.2
0.1
0
0
20
40
60
80
100
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 1.6
t
mm
3.1
3.2
3.0
2.9
2.8
-25
0
25
75
100
125
V
IN
=4V, I
OUT
=30mA
Ambient temperature (
C)
Output voltage (V)
1.5
2.0
1.0
0.5
0
0
2
4
6
8
10
12
Input voltage (V)
I
OUT
=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
MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Load fluctuation
Current limit
Ripple rejection rate
Input transient response
V
IN
=4V
20
40
-20
-40
0
20
40
60
80
100
Output current (mA)
0
Output voltage (mV)
V
IN
=4V
3
4
5
2
1
0
0
50
100
150
200
250
Output current (mA)
Output voltage (V)
V
IN
=4V, I
OUT
=30mA
60
80
40
20
10
0
100
1k
10k
100k
1M
Frequency (Hz)
Ripple rejection rate (dB)
I
OUT
=60mA
20mV
50
S
6V
7V
Input voltage (V)
Input voltage (V)
Output voltage
Input fluctuction
3
4
5
2
1
0
0
2
4
6
8
10
12
Input voltage (mA)
I
OUT
=30mA
Output voltage (V)
I
OUT
=30mA
10
20
0
-10
4
6
8
10
12
Input voltage (V)
Output voltage (mV)
MITSUMI
Microminiature Low-Noise, Low-Saturation Three-Pin Regulator MM1320
Output noise voltage
Input transient response
V
IN
=4V, I
OUT
=30mA
75
100
50
25
0
0.0001
0.001
0.01
0.1
Noise pin capacitance (
F)
Output noise voltage (
Vrms)
V
IN
=4V
20mV
20
S
50mA
100mA
Output voltage (V)
Output current (mA)
ESR Stable region (1320C)
V
IN
=5V, C
OUT
=6.8
F (Ceramic, ESR=0.006
at 100kHz)
100
10
1
0.1
0.01
0.001
1
10
0.1
100
I
O
output current (mA)
ESR (
)
Stable Region
Unmeasurement Region
Instability Region
0.01
Note: Reference data
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