DC-DC Controller (External Switch) 3V to 20V Wide Input Synchronous Buck Controller for High Power Density, 600kHz, 600mV 1% Reference DC DC Cntrlr Single-OUT Sync Buck 3V to 20V Input 10Pin VSON EP T/R
The TPS40304DRCT is a synchronous Buck Controller operates from 3 to 20V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to a change in input voltage. The frequency spread spectrum (FSS) feature adds to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards. The TPS4030x offers design with a variety of user-programmable functions, including soft-start, overcurrent protection (OCP) levels and loop compensation. OCP level may be programmed by a single external resistor connected from the LDRV pin to circuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures the voltage at the LDRV pin and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition.
High and low side FET RDS(on) current sensing
Programmable thermally compensated OCP levels
Programmable soft-start
600mV 1% Reference voltage
Voltage feed-forward compensation
Supports pre-biased output
Frequency spread spectrum
Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
