KA3524

$0.42

Description：IC REG CTRLR MULT TOPOLOGY 16DIP
Series：-
Mfr：onsemi
Package：Tube

SKU:2a8e2b6dd2d1 Category: DC DC Switching Controllers Brand: onsemi

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Product introduction

KA3524 is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG CTRLR MULT TOPOLOGY 16DIP. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for KA3524

Description：IC REG CTRLR MULT TOPOLOGY 16DIP
Series：-
Mfr：onsemi
Package：Tube
Output Type：Transistor Driver
Function：Step-Down, Step-Up/Step-Down
Output Configuration：Positive, Isolation Capable
Topology：Buck, Flyback, Push-Pull
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：8V ~ 40V
Frequency - Switching：350kHz
Duty Cycle (Max)：45%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：16-DIP (0.300", 7.62mm)
Supplier Device Package：16-PDIP
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for KA3524

KA3524

DC DC Switching Controllers Overview

The onsemi KA3524 is a pulse width modulation (PWM) controller IC designed for switching power supplies. It supports buck, flyback, and push-pull topologies with a maximum switching frequency of 350kHz and a duty cycle limit of 45%. The device operates within an input voltage range of 8V to 40V and features a built-in 5V regulator capable of supplying up to 50mA. Packaged in a 16-pin DIP, it includes an error amplifier, oscillator, and transistor driver for positive or isolated outputs.

DC DC Switching Controllers Feature Summary

Integrated PWM control circuitry including error amplifier and oscillator
Supports multiple converter topologies such as buck, flyback, and push-pull
Built-in 5V regulator for external circuit power supply

DC DC Switching Controllers Applications

Buck converter designs
Flyback power supply implementations
Push-pull topology applications

DC DC Switching Controllers Procurement Notes

Verify component status carefully as the KA3524 is obsolete and no longer manufactured by onsemi. Sourcing may be limited to existing stock or third-party distributors. Confirm authenticity and lot dates if procuring from non-authorized channels. Ensure compatibility with current design requirements before finalizing procurement decisions due to end-of-life status.

DC DC Switching Controllers Selection Notes

Select this component only for legacy system maintenance or specific historical designs requiring exact pinout and functional equivalence. Evaluate alternative modern controllers for new developments due to obsolescence. Consider thermal performance and package availability constraints when integrating into current production environments.

DC DC Switching Controllers Part Context

The KA3524 belongs to the KA352x series of PWM controllers, sharing functional similarities with other industry-standard devices like the SG3524. It was originally produced by Fairchild Semiconductor before being acquired by onsemi. The part serves as a foundational control element in various DC-DC conversion architectures.