tps53126.pdf
| TPS53126 | |
| www.ti.com SLUS909�MAY 2009 | |
| DUAL SYNCHRONOUS STEP-DOWN CONTROLLER FOR LOW VOLTAGE POWER RAILS | |
| FEATURES ・ D-CAP2 Mode Control � Fast Transient Response � No External Parts Required For Loop Compensation � Compatible with Ceramic Output Capacitors ・ High Initial Reference Accuracy (±1%) ・ Low Output Ripple ・ Wide Input Voltage Range: 4.5 V to 24 V ・ Output Voltage Range: 0.76 V to 5.5 V ・ Low-Side RDS(on) Loss-Less Current Sensing ・ Adaptive Gate Drivers with Integrated Boost Diode ・ Internal 1.2 ms Voltage-Servo Soft Start ・ Pre-Biased Soft Start ・ Selectable Switching Frequency: 350 kHz / 700 kHz ・ Cycle-by-Cycle Over-Current Limiting Control ・ 30 mV to 300 mV OCP Threshold Voltage ・ Thermally Compensated OCP by 4000 ppm/C° at ITRIP " | APPLICATIONS ・ Point-of-Load Regulation in Low Power Systems for Wide Range of Applications � Digital TV Power Supply � Networking Home Terminal � Digital Set Top Box (STB) � DVD Player/Recorder � Gaming Consoles and Other DESCRIPTION The TPS53126 is a dual, adaptive on-time, D-CAP2 mode synchronous Buck controller. The TPS53126 enables system designers to complete the suite of various end equipment's power bus regulators with a cost effective |
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