TPS65270RGER

4.5 V至18 V的输入电压， 2 -A / 3 -A的输出电流，集成MOSFET双路同步降压稳压器 4.5-V TO 18-V INPUT VOLTAGE, 2-A/3-A OUTPUT CURRENT, DUAL SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED MOSFET

DESCRIPON/ORDERING INFORMATION

The TPS65270 is a monolithic dual synchronous buck regulator with wide operating input voltage that can operate in 5-, 9-, 12- or 15-V bus voltages and battery chemistries. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application.

FEATURES

• Wide Input Supply Voltage Range 4.5 V - 18 V

• 0.8 V, ±1% Accuracy Reference

• Up to 2-A Buck 1 and 3-A Buck 2 Maximum Continuous Output Loading Current

• Low Power Pulse Skipping Mode to Achieve High Light Load Efficiency

• Adjustable Switching Frequency 300 kHz - 1.4 MHz Set by External Resistor

• Dedicated Enable and Soft-Start for Each Buck

• Peak Current-Mode Control with Simple Compensation Circuit

• Cycle-by-Cycle Over Current Protection

• 180° Out-of-Phase Operation to Reduce Input Capacitance and Power Supply Induced Noise

• Available in 24-Lead Thermally Enhanced HTSSOP PWP and QFN 4-mm x 4-mm RGE Packages

APPLICATIONS

• DTV

• DSL Modems

• Cable Modems

• Set Top Boxes

• Car DVD Players

• Home Gateway and Access Point Networks

• Wireless Routers