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发布者:微桥 发布时间:2011-10-23 阅读:4909次    关键字: DC-DC
FP6173-1MHz,3A Synchronous Step-Down Regulator


FP6173  1MHz, 3A Synchronous Step-Down Regulator
General Description
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      The FP6173 is a high efficiency current mode synchronous buck PWM DC-DC regulator. The internal generated 0.8V precision feedback reference voltage is designed for low output voltage. Low RDS (ON) synchronous switch dramatically reduces conduction loss. To extend battery life for portable application, 100% duty cycle is supported for low-dropout operation. Shutdown mode also helps saving the current consumption. The FP6173 is packaged in SOP-8L(EP) to reduce PCB space.

Features
Input Voltage Range: 2.5 to 5.5V
Adjustable Output Voltage From 0.8V to VCC
Precision Feedback Reference Voltage: 0.8V (∮2%)
Output Current: 3A (Max.)
Duty Cycle: 0~100%
Internal Fixed PWM Frequency: 1MHz
Low Quiescent Current: 100A
No Schottky Diode Required
Built-in Soft Start
Current Mode Operation
Over Temperature Protection
Package: SOP-8L (EP)

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