April 2009

© 2003 Fairchild Semiconductor Corporation

www.fairchildsemi.com

KA7500C • Rev. 1.0.2

KA7500C

SMPS Controller

Features

Internal Regulator Provides a Stable 5V Reference

Supply Trimmed to ±1% Accuracy

Uncommitted Output TR for 200mA Sink or Source

Current

Output Control for Push-Pull or Single-Ended

Operation

Variable Duty Cycle by Dead-Time Control (Pin 4)

Complete PWM Control Circuit

On-Chip Oscillator with Master or Slave Operation

Internal Circuit Prohibits Double Pulse at Either

Output

Description

The KA7500C is used for the control circuit of the pulse-

width modulation switching regulator. The KA7500C

consists of 5V reference voltage circuit, two error

amplifiers, flip flop, an output control circuit, a PWM

comparator, a dead-time comparator, and an oscillator.

This device can be operated in the switching frequency

of 1kHz to 300kHz. The precision of voltage reference

provides a better output voltage regulation. The

operating temperature range is -25°C ~ +85°C.

16-Lead DIP

16-Lead SOP

Ordering Information

Part Number

Operating

Temperature Range

Eco

Status

Package

Packing Method

KA7500C

16-Lead Dual Inline Package (DIP)

Tube

KA7500CD

Tube

KA7500CDTF

-25 to +85°C

RoHS

16-Lead Small Outline Package (SOP)

Tape and Reel