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MITSUMI

MM1331 Datasheet Preview

MM1331 Datasheet

Step-Up DC/DC Converter

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MITSUMI
Step-Up DC/DC Converter MM1331
Step-Up DC/DC Converter (VFF)
Monolithic IC MM1331
Outline
This is a converter IC which steps up the DC input voltage to output a fixed voltage level. Utilizing technology
for low-voltage operation, which is a feature of Mitsumi semiconductor processes, operation is possible
beginning at 0.85V, making this device ideal for the power supply circuits of portable equipment driven by a
single battery.
Under small load currents oscillation is stopped and the charge stored in an externally mounted capacitor is
output in an intermittent oscillation design, to improve the efficiency of operation under light loads.
Features
1. Low-voltage operation possible, 0.85V (no-load)
2. Internal oscillation circuit
3. Intermittent oscillation design for improved light-load efficiency
4. Numerous output voltages available (seven ranks)
Package
SOT-25
Output Voltage Rank
Rank
ABCDEGH
Voltage (V) 5.0 3.2 3.5 3.0 2.5 2.2 2.7
Applications
1. Pagers
2. Separate vibrators
3. Other portable equipment
Pin Assignment
5
4
1 23
SOT-25
1
GND
2
SUB
3
VL
4
VOUT
5
VIN
*Pin 2 is the SUB pin, and should be connected to GND.




MITSUMI

MM1331 Datasheet Preview

MM1331 Datasheet

Step-Up DC/DC Converter

No Preview Available !

MITSUMI
Block Diagram
Step-Up DC/DC Converter MM1331
Note: Pin 2 is the SUB pin, and should be connected to GND.
Absolute Maximum Ratings
Item
Storage temperature
Operating temperature
Voltage applied to VIN pin
Voltage applied to VOUT pin
Voltage applied to VL pin
Allowable loss
Symbol
TSTG
TOPR
Pd
Recommended Operating Conditions
Item
Operating temperature
Operating voltage
Symbol
Top
Vop
Ratings
-40~+125
-20~+75
-0.3~+10
-0.3~+10
-0.3~+10
150
Ratings
-20~+75
+0.85~VOUT
Units
°C
°C
V
V
V
mW
Units
°C
V


Part Number MM1331
Description Step-Up DC/DC Converter
Maker MITSUMI
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MM1331 Datasheet PDF






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