TPS5450DDA Part Information

Details for TPS5450DDA by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Power Management

Buy TPS5450DDA Directly from Texas Instruments (18367 in stock) at $2.1120

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)
Accuracy % 1.5%
Adjustable Output Voltage Min 1.22V
Base Number 5450
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
Switch Output Current Isw Max 6A
Termination Type Surface Mount Device
Voltage Regulator Type Adjustable
RoHS Compliant

Alternative Part Descriptions

  • TPS5450DDA, Buck Converters | RS Components
  • IC, CONVERTER, SWITCHING, STEP DOWN; 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 RoHS Compliant: Yes | Newark Electronics
  • 5.5V to 36V Input, 5A, 500kHz Step Down Converter | Texas Instruments
  • Texas Instruments, TPS5450DDA Step-Down Switching Regulator, 1-Channel 5A Adjustable 8-Pin, SO PowerPAD | RS Components TR
  • TPS5450DDA, Buck Converters | RS Components IT

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