MITSUMI MM1270

MITSUMI
Low-Output Voltage Low-Saturation Three-Pin Regulator MM1270
Low-Output Voltage Low-Saturation Three-Pin Regulator
Monolithic IC MM1270
Outline
MM1270 is targeted at the one-battery output voltage market, and is a compact low input/output voltage
differential stable power supply with ultra-low current consumption.
Features
1. Input voltage
2. Input/output voltage differential
3. Input current for no load
4. Output voltage
5. Current limiter circuit included
6. On/Off logic
10V max.
0.05V typ.
15µA typ.
1.08V, 1.03V typ.
CE pin
Output
LOW
OFF
HIGH
ON
Package
SOT-25A (MM1270CN, MM1270ZN)
Applications
1. Pagers
2. Headphone stereos
3. Portable equipment
Pin Assignment
5
1
4
2
SOT-25A
3
1
VOUT
2
GND
3
GND
4
CE
5
VIN
MITSUMI
Low-Output Voltage Low-Saturation Three-Pin Regulator MM1270
Equivalent Circuit Diagram
Absolute Maximum Ratings
Item
Symbol
Rating
Units
Storage temperature
TSTG
-40~+125
°C
Operating temperature
TOPR
-20~+75
°C
Power supply voltage
VCC max.
-0.3~+10
V
CE pin voltage
VCE max.
-0.3~+10
V
Output current
Io max.
60
mA
Allowable loss
Pd
150
mW
Recommended Operating Conditions
Input voltage
VIN
1.2~2.0
V
Output voltage
Io
0~10.0
mA
MITSUMI
Low-Output Voltage Low-Saturation Three-Pin Regulator MM1270
Electrical Characteristics
(Ta=25°C)
Item
Symbol
Measurement conditions
Z rank
Output voltage
C rank
Vo
VIN=1.5V Io=1mA
Min. Typ. Max. Units
1.05
1.08
1.11
1.00
1.03
1.06
V
1.200 1.235 1.270
D rank
No load input current
Iccq1
VIN=1.5V Io=0mA
15
35
µA
Minimum I/O voltage differential
Vd min.
VIN=1.0V Io=5mA
0.05
0.10
V
VIN=1.2V~1.25V Io=5mA
3
30
VIN=1.25V~1.6V Io=5mA
10
20
20
Input fluctuation ratio
V1
Load fluctuation ratio
V2
VIN=1.5V Io=0~5mA
5
Output voltage temperature coefficient
Vo/T
Tj=-20~+75°C
+800
ppm/°C
30
dB
150
µVrms
VIN=1.5V f=120Hz
Ripple rejection rate
RR
Output noise voltage
VN
Input current for OFF
Iccq2
VIN=1.5V, VCE=0.2V
CE pin current for OFF
IOFF
VCE=0.2V
CE pin current for ON
ION
VCE=1.5V
CE pin HIGH level
H
CE pin LOW level
L
Current limit
I max.
VRIPPLE=0.1Vpp Io=5mA
VIN=Vo+1V Io=100mA
f=10~80kHz
1
-1
VIN=1.5V Ro=0Ω
µA
0.8
10
V
-0.3
0.2
V
60
mA
20
40
H
VO
0
Tr
T
*Formula for output riseVotime.
(V)
Tr (µS) =COUT (µF)
* Note 1 : Locate the input/output capacitor as close as possible to the IC.
* Note 2 : When not using output control, short the CE pin to the Vin pin.
µA
5
V
L
mV
µA
Equivalent Circuit Diagram
CE
mV
I max.(A)
MITSUMI
Low-Output Voltage Low-Saturation Three-Pin Regulator MM1270
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
1
2
3
4
5
No-load input current
No-load input current (µA)
Output voltage (V)
Output voltage characteristic (IOUT=0mA)
100
80
60
40
20
0
0
1
2
Input voltage (V)
0.2
0.15
0.1
0.05
4
5
1.09
1.08
1.07
1.06
1.05
1.04
0
2
4
6
8
0
10
10
0
-10
-20
-30
2
4
6
8
10
3
Output VS temperature
1.2
1.15
1.1
1.05
25
50
Temperature (°C)
50
40
30
20
10
0
10
100
1000
10000
Frequency (Hz)
Output current (mA)
0
Ripple rejection rate (dB)
20
1
-25
2
Ripple rejection rate (VIN=1.2V)
30
0
1
Input voltage (V)
Load fluctuation
Load fluctuation (mV)
5
1.1
0.25
Output current (mA)
Output voltage (V)
4
Input fluctuation
Output voltage (V)
I/O voltage difference (V)
I/O voltage difference (VIN=1.0V)
0
3
Input voltage (V)
75
100000