International Rectifier IRU3065 User Manual

IRU3065 EVALUATION BOARD USER GUIDE

INTRODUCTION

The IRU3065 controller is designed to provide solu-
tions for the applications requiring low power on board
switching regulators. The IRU3065 is specifically
designed for positive to negative conversion and uses
few components for a simple solution. The IRU3065
operates at high switching frequency (up to 1.5MHz),
resulting in smaller components. The output voltage
can be set by using an external resistor divider. The
stability over all conditions is inherent with this archi-
tecture without any compensation. The device is
available in the standard 6-Pin SOT-23.
(see the IRU3065 data sheet for detailed description).
Rev. 1.0
10/20/04

SPECIFICATION DATA

Inputs:
JP1: Optional VDD input. Default VDD is connected
to VCC through a charge pump.
JP2: Optional Vref input. If accurate output is re
quired, Vref should be connected to a accurate refer-
ence voltage
JP4: 5V Bus input and Vcc input (default connection).
The output voltage will be equal to input voltage with
negative sign.
Outputs:
JP3. Vout=-5V @200mA.
Switching frequency
Fs(MAX)=1.2 MHz
www.irf.com
IRDC3065
1