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參數(shù)資料
| 型號(hào)： | MM1349 |
| 廠商： | MITSUMI ELECTRIC |
| 英文描述： | Utilizing Technology for Low-Voltage Operation |
| 中文描述： | 利用低技術(shù)電壓工作 |
| 文件頁(yè)數(shù)： | 1/3頁(yè) |
| 文件大?。?/td> | 76K |
| 代理商： | MM1349 |
MITSUMI
Step-Up DC/DC Converter (PWM) MM1349
Step-Up DC/DC Converter (PWM)
Monolithic IC MM1349
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 0.90V, making this device ideal for the power supply circuits of portable equipment driven by a
single battery.
Because PWM oscillation is adopted, an output waveform can be obtained with a smaller peak-to-peak
voltage than is possible for VFM devices.
Features
1. Low-voltage operation possible, 0.90V (no-load)
2. Internal oscillation circuit
3. Adoption of PWM oscillation for output waveform with small peak-to-peak voltage
4. Numerous output voltages available (seven ranks)
Package
SOT-25
Pin Assignment
1
3
5
2
4
SOT-25
Applications
1. Pagers
2. Separate vibrators
3. Other portable equipment
Output Voltage Rank
Rank
A
B
C
D
E
G
H
Voltage (V)
5.0
3.5
3.2
3.0
2.7
2.5
2.2
1
GND
SUB
V
L
V
OUT
V
IN
2
3
4
5
*
Pin 2 is the SUB pin, and should be connected to GND.
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