TPS54561

ACTIVE

4.5V to 60V Input 5A Step-Down DC-DC Converter With Soft-Start and Eco-mode™

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LM76005 ACTIVE 3.5-V to 60-V, 5-A synchronous step-down voltage converter Smaller solution size, higher efficiency and lower EMI.

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 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 125 Topology Buck Type Converter Iout (max) (A) 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™
  • 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 TPS54561 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 TPS54561 with the WEBENCH® Power Designer

The TPS54561 is a 60-V, 5-A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65V 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 start up ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 106% of its 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 TPS54561 is available in an 10-pin 4-mm × 4-mm WSON package.

The TPS54561 is a 60-V, 5-A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65V 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 start up ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 93% to 106% of its 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 TPS54561 is available in an 10-pin 4-mm × 4-mm WSON package.

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Technical documentation

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Type Title Date
* Data sheet TPS54561 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter with Soft-Start and Eco-mode™ datasheet (Rev. G) PDF | HTML 02 Jun 2021
EVM User's guide Evaluation Module for the TPS54561 Step-Down Converter 30 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

TPS54561EVM-555 — TPS54561EVM-555 - 60 V Input, 5A, Step Down DC-DC Converter Evaluation Module

The TPS54561EVM-555 is a fully assembled and tested circuit for evaluating the TPS54561 Step-Down Converter. The TPS54561EVM-555 operates from a 7.0V to 60V input (12V nominal) and provides a 5.0V output at 5.0A.

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

TPS54561 PSpice Transient Model

SLVM982.ZIP (677 KB) - PSpice Model
Simulation model

TPS54561 TINA-TI Reference Design

SLVMA92.TSC (239 KB) - TINA-TI Reference Design
Simulation model

TPS54561 TINA-TI Transient Spice Model

SLVMA93.ZIP (56 KB) - TINA-TI Spice Model
Simulation model

TPS54561 Unencrypted PSpice Transient Model

SLVMCU3.ZIP (6 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
Calculation tool

SWIFTINV-CALC SWIFT™ Converter Inverting Buck/Boost Calculator

The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC converters (integrated FET)
TPS54040 3.5V to 42V Input, 0.5A Step-Down Converter with Eco-Mode TPS54060 3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode TPS54060-EP TPS54060-EP- 0.5-A, 60V Step Down DC/DC Converter with Eco-Mode TPS54140 3.5V to 42V Input, 1.5A Step-Down Converter with Eco-Mode TPS54160 3.5V to 60V Input, 1.5A Step-Down Converter with Eco-Mode TPS54231 3.5 to 28V Input, 2A, 570kHz Step-Down Converter with Eco-mode™ TPS54232 3.5-V to 28-V input, 2-A step-down converter with eco-mode TPS54233 3.5 to 28V Input, 2A, 300kHz Step-Down Converter with Eco-mode TPS54260 3.5V to 60V Input, 2.5A Step-Down Converter with Eco-Mode TPS54331 3.5V to 28V Input, 3A, 570kHz Step-Down Converter with Eco-mode TPS54332 3.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode TPS54340 42 V Input, 3.5 A, Step-Down DC/DC Converter with 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™ TPS54540 42 V, 5 A, Step-Down DC-DC Converter with 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™
Reference designs

PMP10357 — 12V@4.2A Buck Converter Radio Reference Design

This current-mode control buck converter provides 12V @ 4.2A over a wide 14V - 36V input voltage range. It uses minimal component count and a 500KHz switching frequency to occupy approximately 1 sq-inch of board area. It achieves a peak efficiency of 95.7% at 24Vin and 2A load.
Test report: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DPR) 10 Ultra Librarian

Ordering & quality

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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
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  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

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