• Product Introduction

TPS40304  

High power density, 600kHz 3V to 20V wide input synchronous buck controller for 600mV, 1% reference

illustrate   The TPS4030x is a cost-optimized synchronous buck controller that operates in 3 - V to 20 V input homes. The controller implements a voltage-mode control architecture with input voltage feedforward compensation that responds immediately to changes in input voltage. The switching frequency is fixed at 300 kHz, 600 kHz or 1.2 MHz. The increased switching frequency of the frequency jitter spread spectrum function greatly reduces the peak of EMI noise, making it easier to comply with EMI standards. The TPS4030x offers user-programmable features including soft-start, overcurrent protection (OCP) levels, various designs, and loop compensation. The level of OCP may be connected to the ground resistor of the circuit by an external program from the LDRV pin.   characteristic   The input voltage range is from 3 V to 20 V 300 kilohertz (TPS40303), 600 kilohertz (TPS40304) and 1.2 megahertz (TPS40305) switching frequencies R DS(ON) current sensing for high, low-side FETs Programmable heat compensation OCP levels Programmable soft start At 600 mV, 1% of the reference voltage Voltage feedforward compensation Pre-biased outputs are supported Frequency extension spectrum Thermal shutdown protection at 145°C The 10-pin 3mm × 3mm son is connected to the ground heatsink pack apply Oil module printer digital television telecommunications