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KA7500B Datasheet Smps Controller

Manufacturer: Fairchild (now onsemi)

Overview: .fairchildsemi. KA7500B SMPS Controller.

General Description

The KA7500B is used for the control circuit of the PWM switching regulator.

The KA7500B consists of 5V reference voltage circuit, two error amplifiers, a flip flop, an output control circuit, a PWM parator, a dead time parator and an oscillator.

This device can be operated in the switching frequency of 1kHz to 300kHz.

Key Features

  • Internal Regulator Provides a Stable 5V Reference Supply Trimmed to 5%.
  • 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.

KA7500B Distributor