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TPS5120-Q1 Datasheet Two-Phase Synchronous Buck DC/DC Controller

Manufacturer: Texas Instruments

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General Description

POWERGOOD 12 SOFTSTART2 13 19 OUT2_d 18 LL2 The TPS5120 is a dual channel, high-efficiency synchronous buck controller where the outputs FB2 14 INV2 15 17 OUT2_u 16 LH2 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

TPS5120ĆQ1 DUAL OUTPUT, TWOĆPHASE SYNCHRONOUS BUCK DC/DC CONTROLLER SGLS225B − JANUARY 2004 − REVISED APRIL 2008 D Qualified for Automotive Applications D Sequencing Easily Achieved by Selecting D Independent Dual-Outputs Operate 180° Out of Phase Softstart Capacitor Values.

D 5-V Linear Regulator Power Internal IC D Wide Input Voltage Range: 4.5-V − 28-V D Adjustable Output Voltage Down to 0.

Key Features

  • such as undervoltage lockout, power good, overvoltage, undervoltage, and programmable short-circuit protection promote system reliability.

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