Product Summary

The TPS65270PWPR 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. Applications are (1)DTV; (2)DSL Modem; (3)Cable Modem; (4)Set Top Boxe; (5)Car DVD Player; (6)Home Gateway and Access Point Network; (7)Wireless Router.

Parametrics

TPS65270PWPR absolute maximum ratings: (1)Voltage range at VIN1, VIN2, LX1, LX2 : –0.3 V to 18 V; (2)Voltage range at LX1, LX2 (maximum withstand voltage transient < 10 ns): –1 V to 18 V; (3)Voltage at BST1, BST2, referenced to LX1, LX2 pin : –0.3 V to 7 V; (4)Voltage at VCC, EN1, EN2, COMP1, COMP2, LOW_P: –0.3 V to 7 V; (5)Voltage at SS1, SS2, FB1, FB2, ROSC : –0.3 V to 3.6 V; (6)Voltage at AGND, GND : –0.3 V to 0.3 V; (7)TJ Operating virtual junction temperature range: –40°C to 125 °C; (8)TSTG Storage temperature range: –55°C to 150 °C.

Features

TPS65270PWPR features: (1)Wide Input Supply Voltage Range (4.5 V - 18 V); (2)0.8 V, ±1% Accuracy Reference; (3)Up to 2-A (Buck 1)and 3-A (Buck 2)Maximum Continuous Output Loading Current; (4)Low Power Pulse Skipping Mode to Achieve High Light Load Efficiency; (5)Adjustable Switching Frequency 300 kHz - 1.4 MHz Set by External Resistor; (6)Dedicated Enable and Soft-Start for Each Buck; (7)Peak Current-Mode Control with Simple Compensation Circuit; (8)Cycle-by-Cycle Over Current Protection.

Diagrams

TPS65270PWPR pin connection

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