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APW7145KAI-TRG

3A, 12V, Synchronous-Rectified Buck Converter
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Description

General Description
The APW7145 is a 3A synchronous-rectified Buck converter with integrated 55mW power MOSFETs. The APW7145, designed with a current-mode control scheme, can convert wide input voltage of 4.3V to 14V to the output voltage adjustable from 0.8V to VIN to provide excellent output voltage regulation.

Features
· Wide Input Voltage from 4.3V to 14V
· Output Current up to 3A
· Adjustable Output Voltage from 0.8V to VIN
   - ±2% System Accuracy
· 55mW Integrated Power MOSFETs
· High Efficiency up to 95%
   - Automatic Skip/PWM Mode Operation
· Current-Mode Operation
   - Easy Feedback Compensation
   - Stable with Low ESR Output Capacitors
   - Fast Load/Line Transient Response
· Power-On-Reset Monitoring
· Fixed 500kHz Switching Frequency in PWM Mode
· Built-In Digital Soft-Start and Soft-Stop
· Current-Limit Protection with FrequencyFoldback
· 123% Over-Voltage Protection
· Hiccup-Mode 50% Under-Voltage Protection
· Over-Temperature Protection
· <3mA Quiescent Current in Shutdown Mode
· SOP-8P and Compact 4mmx4mm DFN-8 (DFN4x4-8) Packages
· Lead Free and Green Devices Available (RoHS Compliant)

Applications
· OLPC, UMPC
· Notebook Computer
· Handheld Portable Device
· Step-Down Converters Requiring High Efficiency and 3A Output Current

 

Features

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