The RT7272A is a high efficiency, current mode synchronous step-down DC-DC converter that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V. The RT7272A integrates a 150mΩ On-Resistance of high-side MOSFET and an 80mΩ On-Resistance of low-side MOSFET to achieve high conversion efficiency up to 95%. The current mode control architecture supports fast transient response and simple compensation circuit.
A cycle-by-cycle current limit function provides protection against shorted output and an internal soft-start eliminates input current surge during start-up. The RT7272A provides complete protection functions such as input under-voltage lockout, output under-voltage protection, over-current protection and over-temperature protection.
The RT7272A is available in the thermal enhanced SOP-8 (Exposed Pad) package.
Applications
- Distributed Power Systems
- Pre-Regulator for Linear Regulators
- Notebook Computers
- Point of Load Regulator in Distributed Power System
- Digital Set-Top Boxes
- Personal Digital Recorders
- Broadband Communications
- Flat Panel TVs and Monitors
- Vehicle Electronics