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General Description

APW7325 is a 5A synchronous buck converter with integrated 65mW high side and 55mW low side power MOSFETs. The APW7325, design with a current-mode control scheme, can convert wide input voltage of 2.6V to 6V to the output voltage adjustable from 0.6V to 6V to provide excellent output voltage regulation.

The APW7325 is equipped with an automatic PFM/PWM mode operation. At light load , the IC operates in the PFM mode to reduce the switching losses. At heavy load, the IC works in PWM mode. At PWM mode, the switching frequency is set by the external resistor. The APW7325 is also equipped with Power-on-reset, softstart, soft-stop, and whole protections (under-voltage, over-voltage, over-temperature and current-limit) into a single package.

This device, available SOP-8P, provides a very compact system solution external components and PCB area.

Features

· High Efficiency up to 95

- Automatic PFM/PWM Mode Operation

· Adjustable Output Voltage from 0.6V to VPVDD

· Integrated 65mW High Side / 55mW Low Side MOSFETs

· Low Dropout Operation: 100 Duty Cycle

· Stable with Low ESR Ceramic Capacitors

· Power-On-Reset Detection on VDD and PVDD

· Integrated Soft-Start and Soft-Stop

· Over-Temperature Protection

· Over-Voltage Protection

· Under-Voltage Protection

· High/ Low Side Current Limit

· Power Good Indication

· Enable/Shutdown Function

· Small SOP-8P Package

· Lead Free and Green Devices Available (RoHS Compliant)

Applications

· Notebook Computer & UMPC

· LCD Monitor/TV

· Set-Top Box

· DSL, Switch HUBr

· Portable Instrument