Product details

Vin (Min) (V) 5.5 Vin (Max) (V) 36 Vout (Min) (V) 1.22 Vout (Max) (V) 31 Iout (Max) (A) 5 Iq (Typ) (uA) 3000 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 500 Features Enable, Over Current Protection Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 5.5 Vin (Max) (V) 36 Vout (Min) (V) 1.22 Vout (Max) (V) 31 Iout (Max) (A) 5 Iq (Typ) (uA) 3000 Switching frequency (Min) (kHz) 500 Switching frequency (Max) (kHz) 500 Features Enable, Over Current Protection Operating temperature range (C) -40 to 125 Rating Catalog Regulated outputs (#) 1
HSOIC (DDA) 8 19 mm² 4.9 x 3.9
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 5-A Continuous (6-A Peak) Output Current
  • High Efficiency Greater Than 90% Enabled by 110-mΩ
    Integrated MOSFET Switch
  • Wide Output Voltage Range: Adjustable Down to 1.22 V
    With 1.5% Initial Accuracy
  • Internal Compensation Minimizes External Part Count
  • Fixed 500-kHz Switching Frequency for Small Filter Size
  • 18-µA Shutdown Supply Current
  • Improved Line Regulation and Transient Response by Input
    Voltage Feed Forward
  • System Protected by Overcurrent Limiting, Overvoltage
    Protection and Thermal Shutdown
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD™
    Package
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 5-A Continuous (6-A Peak) Output Current
  • High Efficiency Greater Than 90% Enabled by 110-mΩ
    Integrated MOSFET Switch
  • Wide Output Voltage Range: Adjustable Down to 1.22 V
    With 1.5% Initial Accuracy
  • Internal Compensation Minimizes External Part Count
  • Fixed 500-kHz Switching Frequency for Small Filter Size
  • 18-µA Shutdown Supply Current
  • Improved Line Regulation and Transient Response by Input
    Voltage Feed Forward
  • System Protected by Overcurrent Limiting, Overvoltage
    Protection and Thermal Shutdown
  • –40°C to 125°C Operating Junction
    Temperature Range
  • Available in Small Thermally Enhanced 8-Pin SOIC PowerPAD™
    Package

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 undervoltage-lockout 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 feed-forward 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 thermally-enhanced, 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.

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 undervoltage-lockout 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 feed-forward 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 thermally-enhanced, 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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Technical documentation

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Type Title Date
* Data sheet TPS5450 5-A, Wide Input Range, Step-Down Converter datasheet (Rev. D) 10 Dec 2014
Application note Power-supply margining circuit for SMPS using a precision DAC (Rev. A) 03 Sep 2019
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
User guide TPS5450EVM-254 5-A, Swift Regulator Evaluation Module 26 Apr 2007
Application note Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) 21 Mar 2007

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS5450EVM-254 — 5A Evaluation Module

This evaluation module is designed to demonstrate a typical printed-circuit-board application using the TPS5450 regulator (Vin 10 V - 31 V, up to 5 A). This does not reflect the full range of possible input and output voltages that may be used when designing with this part.

The switching frequency (...)

In stock
Limit: 5
Evaluation board

TUSB319EVM — USB Type-C DFP Port Controller Evaluation Module

The TUSB319EVM provides a complete reference design, which is a DFP controller ideal for Type-C USB chargers, it supports up to 3A@5V VBUS power signaling and VBUS detection.
In stock
Limit: 2
Simulation model

Source Files for SBAA342

SBAM416.ZIP (42 KB) - TINA-TI Reference Design
Simulation model

TPS5450 TINA-TI Transient Reference Design

SLIM218.TSC (62 KB) - TINA-TI Reference Design
Simulation model

TPS5450 TINA-TI Transient Spice Model

SLIM219.TSM (12 KB) - TINA-TI Spice Model
Simulation model

TPS5450 PSpice Transient Model

SLVM679.ZIP (200 KB) - PSpice Model
Simulation model

TPS5450 Unencrypted PSpice Transient Model

SLVMCV0.ZIP (3 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins Download
SO PowerPAD (DDA) 8 View options

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