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Richtek RT7272A: High-Efficiency Synchronous Buck Converter

The Richtek RT7272A is a high-efficiency, current-mode synchronous buck converter designed to deliver up to 3A of output current across a wide input voltage range, from 4.5V to 36V. This device integrates high-performance MOSFETs, achieving up to 95% conversion efficiency. Its current-mode control architecture ensures fast transient response and simplifies compensation circuitry.

Key protection features include cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output undervoltage protection, and over-temperature protection, ensuring robust operation in various conditions.

Key Features

Wide input voltage range: 4.5V to 36V
3A output current capability
High conversion efficiency up to 95%
Integrated N-channel MOSFETs
Current mode control for fast transient response
Adjustable output voltage
Comprehensive protection functions (UVLO, OVP, OCP, OTP)
Stable operation with low ESR ceramic output capacitors

Applications

Distributed Power Systems
Notebook Computers
Point-of-Load (POL) regulators
Digital Set-Top Boxes
Personal Digital Recorders
Broadband Communications
Flat Panel TVs and Monitors
Vehicle Electronics

Google Docs
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RT7272A DS-11 適用於 Microsoft 365 的 Microsoft Word

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