KA7500B circuit diagram, datasheet & pinout Fairchild Semiconductor

KA7500B electronic component

KA7500B Pinout

1：Overview of the KA7500B：

KA7500B is a pulse width modulation chip, often used in the control circuit of PWM switch regulator.
The design of KA7500B contains a 5V reference voltage circuit, in addition to the oscillator, error amplifier and comparator control circuits. KA7500B The power supply voltage can reach 40V, making it adaptable to various power environments. KA7500B The operating frequency ranges from 1 kHz to 300 kHz and can be adjusted according to actual application requirements.

2：KA7500B Important pin function definition:

KA7500B Circuit Diagram

1: Overview of the KA7500B:

KA7500B is a pulse width modulation chip, often used in the control circuit of PWM switch regulator.
The design of KA7500B contains a 5V reference voltage circuit, in addition to the oscillator, error amplifier and comparator control circuits. KA7500B The power supply voltage can reach 40V, making it adaptable to various power environments. KA7500B The operating frequency ranges from 1 kHz to 300 kHz and can be adjusted according to actual application requirements.
KA7500B It is widely used in computer power supply, industrial control power supply and communication power supply fields.

2: Typical application circuit of KA7500B:

The following figure is a typical application circuit of KA7500B. It is a pulse width modulation buck converter circuit. The power supply input is between 10V and 40V, and the output power supply voltage is 5V1A after conversion.