LYT4323E

LYT4323E - Power Integrations LYTSwitch-4 AC-DC Offline Switcher IC

The LYT4323E is a high-performance AC-DC offline switcher IC from Power Integrations' LYTSwitch-4 family, designed for isolated power supply applications up to 18W. This integrated switcher combines a 725V power MOSFET with advanced control circuitry, enabling efficient flyback, buck, and boost topologies in a compact eSIP-7C through-hole package.

Key Features & Benefits

• 18W Power Output - Ideal for LED drivers, auxiliary supplies, and low-power AC-DC converters
• 725V High-Voltage MOSFET - Supports universal input voltage ranges with excellent margin
• Multi-Topology Support - Flyback, step-down (buck), and step-up (boost) configurations
• 140kHz Switching Frequency - Optimized for compact transformer design and low EMI
• 99.9% Duty Cycle - Maximizes efficiency and minimizes transformer size
• Wide Operating Temperature - -40°C to 150°C (TJ) for demanding industrial and automotive applications
• Isolated Output - Built-in galvanic isolation for safety-critical designs
• RoHS Compliant - Meets environmental standards for global markets

Applications

The LYT4323E is perfectly suited for LED lighting drivers, smart home devices, industrial controls, white goods appliances, and auxiliary power supplies where compact size, high efficiency, and reliable performance are essential.

Authorized Distributor - Full Traceability

We supply genuine Power Integrations components with complete manufacturer documentation, traceability certificates, and long lifecycle support. Every LYT4323E ships with authenticity guarantees to ensure your design integrity.

Need design support? Contact our technical team for reference designs, application notes, and engineering assistance.

• LYT4323E.pdf