EL7571 Datasheet (Renesas) - Programmable PWM Controller

EL7571, Programmable PWM Controller

CONDITION VIN VUVLO HI Input Voltage Range Input Under Voltage Lock out Upper Limit Positive going input voltage VUVLO LO Input Under Voltage Lock out Lower Limit Negative going input voltage VOUT RANGE VOUT 1 Output Voltage Range See VID table Steady State Output Voltage Accuracy, IL = 6

DATASHEET EL7571 Programmable PWM Controller FN7298 Rev 1.00 October 25, 2004 The EL7571 is a flexible, high efficiency, current mode, PWM step down controller.

It incorporates five bit DAC adjustable output voltage control which conforms to the Intel Voltage Regulation Module (VRM) Specification for Pentium® II and Pentium® Pro class processors.

The controller employs synchronous rectification to deliver efficiencies greater than 90% over a wide range of supply voltages and load conditions.

EL7571 Features

* Pentium® II Compatible

* 5 bit DAC Controlled Output Voltage

* Greater than 90% Efficiency

* 4.5V to 12.6V Input Range

* Dual NMOS Power FET Drivers

* Fixed frequency, Current Mode Control

* Adjustable Oscillator with External Sync. Capabilit