General Description

The APW7058 integrates one synchronous-rectified Buck PWM controller and one linear controller to provide two regulated voltages for graphics cards and other embedded processor applications.

Features

• Provides Two Regulated Voltages

- One Synchronous-Rectified Buck PWM Controller

- One Linear Controller

• Low Reference Voltage for Further Applications

- Both Controllers : 0.8V ± 2 Over Temperature

• Both Controllers Drive N-Channel MOSFETs

- PWM Controller Drives Dual N-Channel MOSFETs

- Linear Controller Drives N-Channel MOSFET

• Built-in PWM Feedback Compensation

- No Steady-State Error

- Voltage-Mode PWM Control

- Full 0~100 Duty Ratio

- Fast Transient Response

• Adjustable Outputs by External Resistor Dividers

• Under-Voltage Monitoring on Both Controllers

• Small Converter Size

- 600kHz Constant Switching Frequency

- Built-In Soft-Start

- Simple SO-8 Package

• Shutdown Control

• Lead Free Available (RoHS Compliant)

Applications

• Motherboard

• Graphics Cards

• 12V, 5V and 3.3V Inputs DC-DC Converter