TPS40305DRCT Part Information

Details for TPS40305DRCT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

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Part Description

The TPS4030x is a family of cost-optimized synchronous buck controllers that operate from 3-V to 20-V 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 switching frequency 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 EMI standards. The TPS4030x offers design with a variety of userprogrammable 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. The TPS4030x then enters a shutdown and restart cycle until the fault is removed.

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Part Features

  • 10-Pin 3-mm u00d7 3-mm SON Package With Ground
  • 300-kHz (TPS40303), 600-kHz (TPS40304), and 1.2-MHz (TPS40305) Switching Frequencies
  • 600-mV, 1% Reference Voltage
  • Frequency Spread Spectrum
  • High- and Low-Side FET RDS(on) Current Sensing
  • Input Voltage Range From 3 V to 20 V
  • Programmable Soft-Start
  • Programmable Thermally Compensated OCP Levels
  • Supports Prebiased Output
  • Thermal Shutdown Protection at 145u00b0C
  • Voltage Feed-Forward Compensation

Part Specifications

Supply Voltage Min 3V
Supply Voltage Max 20V
No. of Outputs 1 Output, 1Outputs
Duty Cycle (%) 85%
Controller IC Case Style VSON
No. of Pins 10Pins
Switching Frequency 1.2MHz
Topology Synchronous Buck (Step Down)
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • DC/DC CTRL, SYNC BUCK, 1.2MHZ, VSON-10; Supply Voltage Min:3V; Supply Voltage Max:20V; No. of Outputs:1 Output; Duty Cycle (%):85%; Controller IC Case Style:VSON; No. of Pins:10Pins; Switching Frequency:1.2MHz; Topology:Synchronous RoHS Compliant: Yes | Newark Electronics
  • 3-V to 20-V, 25-A, 1.2-MHz synchronous buck controller with FSS | Texas Instruments

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