TPS40304DRCT

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TPS40304DRCT

3V to 20V Input, 25A Synchronous Buck Controller with FSS, 600kHz

Packaging

Package | PIN: DRC | 10
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $2.08
10-24 $1.87
25-99 $1.74
100-249 $1.52
250-499 $1.43
500-749 $1.21
750-999 $1.03
1000+ $0.98

Features

  • Input Voltage Range From 3 V to 20 V
  • 300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
  • High- and Low-Side FET RDS(on) Current Sensing
  • Programmable Thermally Compensated OCP Levels
  • Programmable Soft Start
  • 600-mV, 1% Reference Voltage
  • Voltage Feed-Forward Compensation
  • Supports Prebiased Output
  • Frequency Spread Spectrum
  • Thermal Shutdown Protection at 145°C
  • 10-Pin 3-mm × 3-mm VSON Package With Ground Connection to Thermal Pad
  • Create a Custom Design Using the TPS4030x With the WEBENCH® Power Designer

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Texas Instruments  TPS40304DRCT

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltagefeed-forward compensation that responds instantly to a change in input voltage. The switchingfrequency is fixed at 300 kHz, 600 kHz, or 1.2 MHz.

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 EMIstandards.

The TPS4030x offers design with a variety of user-programmable functions, including softstart, overcurrent protection (OCP) levels, and loop compensation.

OCP level may be programmed by a single external resistor connected from the LDRV pin tocircuit ground. During initial power on, the TPS4030x enters a calibration cycle, measures thevoltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmedOCP voltage level is compared to the voltage drop across the low-side FET when it is on todetermine whether there is an overcurrent condition. The TPS4030x then enters a shutdown andrestart cycle until the fault is removed.