TPS5450DDARG4 Part Information

Details for TPS5450DDARG4 by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Part Description

The TPS5450 is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltagelockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 μA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated. The TPS5450 device is available in a thermallyenhanced, 8-pin SOIC PowerPAD package. TI provides evaluation modules and software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

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Part Features

  • 18-u03bcA Shutdown Supply Current
  • Available in Small Thermally Enhanced 8-Pin
  • Fixed 500-kHz Switching Frequency for Small Filter Size
  • High Efficiency Greater Than 90% Enabled by 110-mu2126 Integrated MOSFET Switch
  • Improved Line Regulation and Transient Response by Input Voltage Feed Forward
  • Internal Compensation Minimizes External Part Count
  • System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
  • Up to 5-A Continuous (6-A Peak) Output Current
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Wide Output Voltage Range: Adjustable Down to 1.22 V With 1.5% Initial Accuracy
  • u201340u00b0C to 125u00b0C Operating Junction Temperature Range

Part Specifications

Topology Buck (Step Down)
Input Voltage Min 5.5V
Input Voltage Max 36V
No. of Outputs 1Outputs
DC / DC Converter IC Case SO PowerPAD
No. of Pins 8Pins
Output Current 5A
Output Voltage Min 1.22V
Output Voltage Max 31V
Switching Frequency 600kHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 1 - Unlimited
SVHC No SVHC (27-Jun-2018)
Frequency 500kHz
Operating Temperature Min -40°C
Operating Temperature Range -40°C to +125°C
Output Voltage 31V
Primary Input Voltage 36V
Supply Voltage Min 5.5V
Termination Type Surface Mount Device
Voltage Regulator Type Buck DC/DC Converter
RoHS Compliant

Alternative Part Descriptions

  • STEP-DOWN CONVERTER, 8-SOIC; Topology:Buck (Step Down); Input Voltage Min:5.5V; Input Voltage Max:36V; No. of Outputs:1Outputs; DC / DC Converter IC Case:SOIC; No. of Pins:8Pins; Output Current:5A; Output Voltage Min:1.23V RoHS Compliant: Yes | Newark Electronics

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