General Description

The  APW7037 series are designed to provide a low cost synchronous Buck regulator for on-board DC to  DC converter  applications.  The APW7037  series  together  with dual N-channel MOSFET s  such as APM7313, provide  a low cost solution for such applications. Each device features an internal 200/400kHz oscillator , Power-On-Reset (POR)  for  both VCC  and  VC  suppli es,  an  external  programmabl e  soft-start  functi on  as  well   as  output  under voltage detection that latches off the device when an out put short is detected.

Features

• Operating with Single 5V or 12V Input

• Drives  N-Channel MOSFET s

• Simple Single-Loop Control Design

  - Voltage-Mode PWM Control

  -  Full  0%  to  100%  Duty  Ratio

  - Fast Transient Response

• ±2% Output Voltage Accuracy Over Temperature

• Under-Voltage Protection for Output

• 200/400kHz Constant Frequency Operation

  - 200kHz for APW7037B

  - 400kHz for APW7037A

• Small size, 8-PIN Package (SOIC or TSSOP)

• Lead Free and Green Devices Available(RoHS  Compliant)

Applications

• Graphics Cards

• DDR Memory Power Supply

• DDR Memory T ermination V oltage

• Low-V oltage  Distributed Power Supplies