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參數(shù)資料
| 型號： | 1002AS |
| 廠商： | Monolithic Power Systems, Inc. |
| 英文描述： | Dual 1.2MHz, 800mA Synchronous Step-Down Converter |
| 中文描述： | 雙1.2MHz的，800mA的同步降壓轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大小： | 303K |
| 代理商： | 1002AS |
MP2109 – DUAL 1.2MHz 800mA SYNCHRONOUS STEP-DOWN CONVERTER
MP2109 Rev.1.3
2/21/2006
www.MonolithicPower.com
4
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2006 MPS. All Rights Reserved.
TM
PIN FUNCTIONS
Pin # Name Description
1
EN1
Channel 1 Enable Control Input. Drive EN1 above 1.5V to turn on the Channel 1. Drive EN1
below 0.3V to turn it off (shutdown current < 0.1μA).
Channel 1 Feedback Input. Connect FB1 to the center point of the external resistor divider. The
feedback voltage is 0.6V.
Channel 2 Supply Input. Bypass to GND with a 2.2μF or greater ceramic capacitor.
GND2 Ground 2.
Channel 2 Power Switch Output. Inductor connection to drains of the internal PFET and NFET
switches.
Channel 2 Enable Control Input. Drive EN2 above 1.5V to turn on the Channel 2. Drive EN2
below 0.3V to turn it off (shutdown current < 0.1μA).
Channel 2 Feedback Input. Connect FB2 to the center point of the external resistor divider. The
feedback voltage is 0.6V.
IN1
Channel 1 Supply Input. Bypass to GND with a 2.2μF or greater ceramic capacitor.
GND1 Ground 1.
Channel 1 Power Switch Output. Inductor connection to drains of the internal PFET and NFET
switches.
2
FB1
3
4
IN2
5
SW2
6
EN2
7
FB2
8
9
10
SW1
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