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参数资料
| 型号： | LSP4303DAD |
| 厂商： | LITE-ON SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.84 A SWITCHING CONTROLLER, 110 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | TO-252, 5 PIN |
| 文件页数： | 5/7页 |
| 文件大小： | 192K |
| 代理商： | LSP4303DAD |
Liteon Semiconductor Corporation
LSP4303
Low Power Off Line SMPS Primary Switcher
Rev1.0
5/7
PIN ASSIGNMENT AND PACKAGE
TO252-5L
PIN Number
PIN name
Pin Function Description
1,2
GND
Power MOSFET source and circuit ground referencep.
3
SW
Power MOSFET drain. Also used by the internal high voltage current source during
start up phase for charging the external VDD capacitor.
4
COMP
Feedback input. The useful voltage range extends from 0V to 1V, and defines the peak
drain MOSFET current. The current limitation, which corresponds to the maximum
drain current, is obtained for a COMP pin shorted to the GND pin.
5
VCC
Power supply of the control circuits. Also provides a charging current during start up
thanks to a high voltage current source connected to the drain. For this purpose, an
hysteresis comparator monitors the VDD voltage;
Metal Tab
Connected with SW
PS：European(195~265Vac) for 20W, US(85~265Vac) for 12W;
TYPICAL APPLICATION CIRCUITS
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