Product details

Vin (Min) (V) 4.5 Vin (Max) (V) 42 Vout (Min) (V) 0.8 Vout (Max) (V) 41 Iout (Max) (A) 5 Iq (Typ) (uA) 152 Switching frequency (Min) (kHz) 100 Switching frequency (Max) (kHz) 2500 Features Enable, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Power Good, Tracking, UVLO Adjustable Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1
Vin (Min) (V) 4.5 Vin (Max) (V) 42 Vout (Min) (V) 0.8 Vout (Max) (V) 41 Iout (Max) (A) 5 Iq (Typ) (uA) 152 Switching frequency (Min) (kHz) 100 Switching frequency (Max) (kHz) 2500 Features Enable, Frequency Synchronization, Light Load Efficiency, Over Current Protection, Power Good, Tracking, UVLO Adjustable Operating temperature range (C) -40 to 85 Rating Catalog Regulated outputs (#) 1
WSON (DPR) 10 16 mm² 4 x 4
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™
  • 87-mΩ High-Side MOSFET
  • 152-µA Operating Quiescent Current and 2-µA Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads with Integrated BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • UV and OV Power-Good Output
  • Adjustable Soft-Start and Sequencing
  • 0.8-V 1% Internal Voltage Reference
  • 10-Pin WSON with Thermal Pad Package
  • –40°C to 150°C TJ Operating Range
  • Create a Custom Design using the TPS54541 with the WEBENCH® Power Designer
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™
  • 87-mΩ High-Side MOSFET
  • 152-µA Operating Quiescent Current and 2-µA Shutdown Current
  • 100-kHz to 2.5-MHz Adjustable Switching Frequency
  • Synchronizes to External Clock
  • Low Dropout at Light Loads with Integrated BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • UV and OV Power-Good Output
  • Adjustable Soft-Start and Sequencing
  • 0.8-V 1% Internal Voltage Reference
  • 10-Pin WSON with Thermal Pad Package
  • –40°C to 150°C TJ Operating Range
  • Create a Custom Design using the TPS54541 with the WEBENCH® Power Designer

The TPS54541 device is a 42-V 5-A step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. When the enable pin is pulled low, the shutdown supply current is reduced to 2 µA.

Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage startup ramp is controlled by the soft-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.

A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect internal and external components during an overload condition.

The TPS54541 device is available in a 10-pin 4-mm × 4-mm WSON package.

The TPS54541 device is a 42-V 5-A step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. When the enable pin is pulled low, the shutdown supply current is reduced to 2 µA.

Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage startup ramp is controlled by the soft-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.

A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect internal and external components during an overload condition.

The TPS54541 device is available in a 10-pin 4-mm × 4-mm WSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS54541 4.5-V to 42-V Input, 5-A Step-Down DC-DC Converter With Soft-Start and Eco-mode™ datasheet (Rev. C) 20 Jan 2017
Technical article Minimize the impact of the MLCC shortage on your power application 29 Mar 2019
User guide Evaluation Module for the TPS54541 Step-Down Converter 05 Nov 2013
Application note Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) 16 Sep 2013
Application note Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) 26 Oct 2012
Application note Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 26 Oct 2012

Design & development

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

Evaluation board

TPS54541EVM-555 — TPS54541EVM-555 - 4.5V to 42V Input 5A Step-Down DC-DC Converter Evaluation Module

The TPS54541EVM-555 is a fully assembled and tested circuit for evaluating the TPS54541 Step-Down Converter. The TPS54541EVM-555 operates from a 6.0V to 42V input (12V nominal) and provides a 3.3V output at 5.0A.

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Simulation model

TPS54541 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM981A.ZIP (740 KB) - PSpice Model
Simulation model

TPS54541 Unencrypted PSpice Transient Model

SLVMCU0.ZIP (6 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 (...)
Calculation tool

TPS54360 and TPS54361 Family Design Excel Tool (Rev. E)

SLVC452E.ZIP (245 KB)
Reference designs

PMP15018 — Industrial 15V – 42V VIN Power Reference Design With Dual VOUT of 1.2V@10A and 1V@10A

The PMP15018 reference design incorporates the TPS54541 42V 5A DC/DC converter and two TPS56C215 17V, 12A DC/DC converters.  The solution operates from 15V to 42V input and generates 1.0V @10A and 1.2V@10A voltage rails.  The 1.0V and 1.2V converters operate at 1MHz and 400kHz respectively (...)
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WSON (DPR) 10 View options

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