LINEAR TECHNOLOGY LT3781 Data Sheet
Summary
The LT3781 is a specialized synchronous forward controller designed for high-voltage DC/DC power conversion. This integrated circuit simplifies complex power stage designs by supporting programmable frequencies up to 350kHz, self-biased operation, and various protection features (UVLO, OVP). The manual provides comprehensive technical specifications, electrical characteristics, pin diagrams, and application circuits needed for implementation. It is ideal for professional engineers designing robust power systems in demanding fields such as personal computing, data center peripherals, distributed step-down converters, and automotive/heavy equipment applications.
Manual Details
| Brand | Linear |
|---|---|
| Pages | 20 |
| File Size | 249.04 KB |
| Published | June 02, 2026 |
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Frequently Asked Questions
What is the operational voltage range?
It operates with input voltages up to 72V, and the maximum ambient operating temperature is 85°C.
Does it offer various protection features?
Yes, it includes Undervoltage Lockout (UVLO), Overvoltage Protection, and internal logic guarantees like Soft-Start Control.
What high-frequency operation speeds can it handle?
Its operating frequency is programmable and can be synchronized up to 350kHz.
Is the IC suitable for different applications?
It is ideal for output derived power schemes, including LED telecommunication systems, personal computers, and battery backup systems.