LS352 TO-78 6L

Overview

The LS352 is a monolithic pulse width modulation (PWM) controller manufactured by Linear Integrated Systems, Inc. Housed in the TO-78 metal can package with six leads, this component functions as a complete PWM control system on a single chip. It integrates essential circuitry for switching power supplies, including an internal high-stability reference oscillator, error amplifiers, and output drivers. The device is designed to provide precise voltage regulation and current mode control capabilities within compact industrial and commercial power conversion applications.

Feature Summary

• Integrates complete PWM control system functionality on a single monolithic chip
• Features an internal high-stability reference oscillator for consistent timing
• Includes built-in error amplifiers for accurate feedback loop regulation
• Provides robust output driver stages suitable for direct gate drive applications

Applications

• DC-to-DC switching power supply controllers
• Industrial power conversion systems
• Commercial AC/DC adapter front-end regulation

Part Context

Linear Integrated Systems was acquired by Analog Devices, Inc. The LS352 belongs to the legacy L352/LM352 family of PWM controllers. While Analog Devices continues to support these parts, the LS352 specifically denotes the military or extended temperature grade variant often associated with the original Linear brand heritage. Designers should verify current manufacturing status and datasheet revisions when integrating this legacy component into new designs.

Replacement Considerations

Direct pin-compatible replacements include the LM352 and L352 from various manufacturers such as Texas Instruments, STMicroelectronics, and ON Semiconductor. When substituting, verify that the replacement part meets the specific temperature range and electrical characteristics required by the original design, particularly regarding oscillator frequency stability and output drive current capabilities.