TPS54361

ACTIVE

4.5 to 60V Input 3.5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™

A newer version of this product is available

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Same functionality with different pin-out to the compared device
LM76003 ACTIVE 3.5V to 60V, 3.5A Synchronous Step-Down Voltage Converter Wettable flank WQFN package and improved performance.

Product details

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 60 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 Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 59 Iq (typ) (µA) 152 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 4.5 Vin (max) (V) 60 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 Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 59 Iq (typ) (µA) 152 Duty cycle (max) (%) 98
WSON (DPR) 10 16 mm² 4 x 4
  • High Efficiency at Light Loads With Pulse-Skipping Eco-Mode™
  • 89-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 TPS54361 with the WEBENCH® Power Designer
  • High Efficiency at Light Loads With Pulse-Skipping Eco-Mode™
  • 89-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 TPS54361 with the WEBENCH® Power Designer

The TPS54361 device is a 60-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 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. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

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 protects internal and external components during an overload condition.

The TPS54361 device is available in a 10-pin 4-mm × 4-mm WSON package.

The TPS54361 device is a 60-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 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. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.

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 protects internal and external components during an overload condition.

The TPS54361 device is available in a 10-pin 4-mm × 4-mm WSON package.

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Technical documentation

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* Data sheet TPS54361 4.5-V to 60-V Input, 3.5-A, Step-Down DC-DC Converter With Soft-Start and Eco-Mode™ datasheet (Rev. D) PDF | HTML 23 Jan 2017
EVM User's guide Evaluation Module for the TPS54361 Step-Down Converter 31 Oct 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

TPS54361EVM-555 — TPS54361EVM-555 TPS54361 4.5-V to 60-V input 3.5-A step-down DC/DC converter evaluation module

The TPS54361EVM-555 is a fully assembled and tested circuit for evaluating the TPS54361 step-down converter. The TPS54361EVM-555 operates from a 7.0V to 60V input (12V nominal) and provides a 5.0V output at 3.5A.

User guide: PDF
Not available on TI.com
Simulation model

TPS54361 PSpice Transient Model

SLVM971.ZIP (620 KB) - PSpice Model
Simulation model

TPS54361 TINA-TI Reference Design_Startup

SLVMA07.TSC (828 KB) - TINA-TI Reference Design
Simulation model

TPS54361 TINA-TI Reference Design_Steady

SLVMA05.TSC (828 KB) - TINA-TI Reference Design
Simulation model

TPS54361 TINA-TI Transient Spice Model

SLVMA06.ZIP (57 KB) - TINA-TI Spice Model
Simulation model

TPS54361-Q1 PSpice Average Model

SLVMA82.ZIP (83 KB) - PSpice Model
Calculation tool

SLVC452 TPS54360 and TPS54361 Family Design Excel Tool

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS54340 42 V Input, 3.5 A, Step-Down DC/DC Converter with Eco-mode™ TPS54341 4.5 to 42V Input 3.5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™ TPS54360 4.5V to 60 V Input, 3.5 A Step-Down Converter with Eco-mode TPS54360B 60-V input, 3.5-A, step-down DC/DC converter with Eco-Mode™ TPS54361 4.5 to 60V Input 3.5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™ TPS54540 42 V, 5 A, Step-Down DC-DC Converter with Eco-Mode TPS54541 4.5V to 42V Input 5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™ TPS54560 4.5V to 60 V input, 5 A step-down converter with Eco-Mode TPS54560B 4.5-V to 60-V input, 5-A, step-down DC-DC converter with Eco-mode™ TPS54561 4.5V to 60V Input 5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™
Hardware development
Evaluation board
TPS54340EVM-182 TPS54340 Step-Down Converter Evaluation Module TPS54341EVM-555 TPS54341EVM-555 4.5- to 60-V Input 3.5-A Step-Down DC-DC Converter Evaluation Module TPS54360EVM-182 60V Input, 3.5A, Step-Down Converter Evaluation Module TPS54361EVM-555 TPS54361EVM-555 TPS54361 4.5-V to 60-V input 3.5-A step-down DC/DC converter evaluation module TPS54541EVM-555 TPS54541EVM-555 - 4.5V to 42V Input 5A Step-Down DC-DC Converter Evaluation Module TPS54560EVM-515 TPS54560 Step-Down DC-DC Converter Evaluation Module TPS54561EVM-555 TPS54561EVM-555 - 60 V Input, 5A, Step Down DC-DC Converter Evaluation Module
Package Pins CAD symbols, footprints & 3D models
WSON (DPR) 10 Ultra Librarian

Ordering & quality

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  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

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