• Product Introduction

TPS40077 

High-efficiency Midrage input synchronous buck controller

illustrate   The TPS40077 is a midvoltage, wide input (4.5 V to 28 V), synchronous, step-down controller that offers user programmable features designed including soft start, undervoltage lockout, operating frequency, voltage feed variety flexibility, forward, high-side, FEF, remote sensing, short-circuit protection. The TPS40077 drives external N-channel MOSFETs with second-generation, predictive gate drivers to reduce body diode conduction and maximize efficiency at low-end FETs. The pre-biased output supports not allowing low-end FETs to turn on until the voltage closed-loop soft-start command ratio prebias voltage. Voltage feedforward provides good input transient response and provides constant PWM over a wide input voltage operating range to mitigate the gain of compensation claims.   characteristic   Operates in the 4.5 - V to 28 V input range Programmable fixed frequency, voltage mode controller up to 1 MHz Predict gate drive ™ anti-crossover circuit "1% internal 700 mV reference The internal gate is a high-side and synchronous N-channel MOSFET driver output 16-pin PowerPAD™ package Thermal shutdown protection Pre-bias compatible Power stage shutdown function Programmable high-side detection short-circuit protection apply Power modules Network/Telecommunications PCI Express industry server