TPS51312

www.ti.com TPS51312 SLUSB57 – SEPTEMBER 2012 3.1-V to 5.5-V Input, 3-A Output, Synchronous, Step-Down Regulator with Integrated FETs Check for Samples: TPS51312 FEATURES 1 23 D-CAP2™ Mode Enables Fast Transient Response No External Compensation Required Input Voltage VIN Range: 3.1 V to 5.5 V Bias Voltage VCC Range: 3.1 V to 5.5 V Output Voltage Range: 0.6 V to 3.3 V 0.6-V, 1% Voltage Reference Accuracy Fixed Voltage Servo Soft-Start Function Auto-Skip, Eco-mode™ for High Efficiency at Light Loads Switching Frequency: 900-kHz UVLO, UVP, OTP and OVP Power Good Output Cycle-By-Cycle Current Limit, Latch-off OCP Thermally Enhanced 3 mm x 3 mm, 10-pin SON (DRC) APPLICATIONS Battery Powered Equipment Notebook Computers DESCRIPTION The TPS51312 is a high-efficiency, synchronous, step-down DC/DC converter. It supports 3-A (maximum) of dc output current at output voltages from 0.6 V to 3.3 V. The D-CAP2 mode adaptive ontime control allows a small footprint when designed using all ceramic output capacitors and offers a low external component count. The device also features auto-skip function at light load condition, pre-biased start-up and internally fixed soft-start time. When the device is disabled, the output capacitor is discharged through internal resistor. The TPS51312 is available in a 3 mm x 3 mm, 10-pin DRC package (Green RoHS compliant and Pb free) and is specified between –40°C and 85°C. X SIMPLIFIED APPLICATION CFF RFB1 VIN 3.1 V to 5.5 V ...