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
