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TPS54561-Q1

ACTIVE

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

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Data sheet

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LM76005-Q1 ACTIVE 3.5-V to 60-V, 5-A synchronous voltage regulator Smaller solution size, higher efficiency and lower EMI.

TPS54561-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive 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, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 59 Iq (typ) (µA) 1520 Duty cycle (max) (%) 98
Rating Automotive 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, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 59 Iq (typ) (µA) 1520 Duty cycle (max) (%) 98
WSON (DPR) 10 16 mm² 4 x 4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification H1C
    • Device CDM ESD Classification C5
  • High Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control
  • 87-mΩ High-Side MOSFET
  • 152-µA Operating Quiescent Current and 2-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Low-Dropout Operation at Light Loads With Integrated BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • Power-Good Output Monitor for Undervoltage and Overvoltage
  • 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-Q1 with the WEBENCH® Power Designer
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification H1C
    • Device CDM ESD Classification C5
  • High Efficiency at Light Loads With Pulse-Skipping Eco-mode™ Control
  • 87-mΩ High-Side MOSFET
  • 152-µA Operating Quiescent Current and 2-µA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Low-Dropout Operation at Light Loads With Integrated BOOT Recharge FET
  • Adjustable UVLO Voltage and Hysteresis
  • Power-Good Output Monitor for Undervoltage and Overvoltage
  • 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-Q1 with the WEBENCH® Power Designer

The TPS54561-Q1 device is a 60-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 V per ISO7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode and 152-µA supply current enables high efficiency at light loads. Pulling the enable pin low reduces shutdown supply current to 2 µA.

Undervoltage lockout has an internal 4.3-V setting. Use of an external resistor divider at the EN pin can increase the setting. The soft-start pin controls the output-voltage start-up ramp and also configures sequencing or 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 optimization for either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect the device during an overload condition.

The TPS54561-Q1 is available in a 10-pin, 4-mm × 4-mm WSON package.

The TPS54561-Q1 device is a 60-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 V per ISO7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode and 152-µA supply current enables high efficiency at light loads. Pulling the enable pin low reduces shutdown supply current to 2 µA.

Undervoltage lockout has an internal 4.3-V setting. Use of an external resistor divider at the EN pin can increase the setting. The soft-start pin controls the output-voltage start-up ramp and also configures sequencing or 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 optimization for either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protect the device during an overload condition.

The TPS54561-Q1 is available in a 10-pin, 4-mm × 4-mm WSON package.
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Technical documentation

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* Data sheet TPS54561-Q1 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. A) PDF | HTML 19 Jan 2017
Application note Controller to Converter – Design Considerations for 24V and 48V Systems PDF | HTML 02 Oct 2024
Application note Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) 15 Sep 2010

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
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Simulation model

TPS54561 TINA-TI Reference Design

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

TPS54561 TINA-TI Transient Spice Model

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

TPS54561 Unencrypted PSpice Transient Model

SLVMCU3.ZIP (6 KB) - PSpice Model
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Reference designs

TIDA-00804 — Automotive i.MX6 Quad Core Processor Power Reference Design

The TIDA-00804 reference design is a low-cost discrete power solution for the i.MX6Q quad core application processor. All the DCDC regulators operate at frequencies above the AM radio broadcast band to avoid interference with the radio and to provide a small solution size due to smaller filter (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
WSON (DPR) 10 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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