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TPS5120 Datasheet Two-Phase Synchronous Buck DC/DC Controller

Manufacturer: Texas Instruments

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General Description

The TPS5120 is a dual channel, high-efficiency synchronous buck controller where the outputs run 180 degrees out of phase, which lowers the input current ripple, thereby reducing the input capacitance cost.

The PWM/SKIP pin allows the operating mode to switch from PWM mode to skip mode under light load conditions.

The skip mode enables a lower operating frequency and shortens the pulse width to the low-side MOSFET, increasing the efficiency under light load conditions.

Overview

TPS5120 DUAL OUTPUT, TWOĆPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER D Independent Dual-Outputs Operate 180° Out of Phase D Wide Input Voltage Range: 4.5-V – 28-V D Adjustable Output Voltage Down to 0.9 V D Pin-Selectable PWM/SKIP Mode for High Efficiency Under Light Loads D Synchronous Buck Operation Allows up to 95% Efficiency D Separate Standby Control and Overcurrent Protection for Each Channel D Programmable Short-Circuit Protection D Low Supply (1 mA) and Shutdown (1 nA) Current D Power Good Output D High-Speed Error Amplifiers D Sequencing Easily Achieved by Selecting Softstart Capacitor Values.

Key Features

  • such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability. Please be aware that an important notice concerning availability, standard warranty, and use in critical.

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