TPS54331D Part Information

Details for TPS54331D by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The TPS54331 device is a 28-V, 3-A nonsynchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-μA shutdown supply-current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD package that have been internally optimized to improve thermal performance.

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Part Features

  • 3.5 to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Adjustable Slow-Start Limits Inrush Currents
  • Available in Easy-to-Use SOIC8 Package or Thermally Enhanced SOIC8 PowerPADu2122 Package
  • Cycle-by-Cycle Current Limit, Frequency Fold Back, and Thermal Shutdown Protection
  • Fixed 570 kHz Switching Frequency
  • High Efficiency at Light Loads With a Pulse Skipping Eco-modeu2122
  • Integrated 80-mu2126 High-Side MOSFET Supports up to 3-A Continuous Output Current
  • Overvoltage Transient Protection
  • Programmable UVLO Threshold
  • Supported by WEBENCHu00ae
  • Typical 1-u03bcA Shutdown Quiescent Current

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 3.5V
Input Voltage Max 28V
No. of Outputs 1Outputs
DC / DC Converter IC Case SOIC
No. of Pins 8Pins
Output Current 3A
Output Voltage Min 800mV
Output Voltage Max 25V
Switching Frequency 570kHz
Operating Temperature Max 150°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Accuracy % 2%
Adjustable Output Voltage Min 0.8V
Base Number 54331
Frequency 570kHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +150°C
Output Voltage 25V
Primary Input Voltage 28V
Supply Voltage Min 3.5V
Switch Output Current Isw Max 3.5A
Termination Type Surface Mount Device
Voltage Regulator Type Buck
RoHS Compliant

Alternative Part Descriptions

  • Conv DC-DC Single-OUT Step Down | RS Components
  • BUCK, 3.5-28V, 3A, 570KHZ, 8SOIC; Topology:Buck (Step Down); Input Voltage Min:3.5V; Input Voltage Max:28V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOIC; No. of Pins:8Pins; Output Current:3A; Output Voltage Min:800mV; RoHS Compliant: Yes | Newark Electronics
  • PMIC; DC/DC converter; Uin: 3.5÷28V; Uout: 0.8÷25V; SO8; buck | Transfer Multisort Elektronik
  • 3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode | Texas Instruments

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