TPS54561-Q1

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

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Product details

Parameters

Vin (Min) (V) 4.5 Vin (Max) (V) 60 Vout (Min) (V) 0.8 Vout (Max) (V) 59 Iout (Max) (A) 5 Iq (Typ) (mA) 1.52 Iq (Typ) (uA) 1520 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 Operating temperature range (C) -40 to 125 Rating Automotive Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

WSON (DPR) 10 16 mm² 4 x 4 open-in-new Find other Buck converters (integrated switch)

Features

  • 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
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Description

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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Type Title Date
* Datasheet TPS54561-Q1 4.5-V to 60-V Input, 5-A, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. A) Jan. 19, 2017
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019
Application notes Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) Sep. 15, 2010

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

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.

Features
  • 4.5 V to 60 V Input Supply Voltage
  • Integrated 87-mΩ High Side N-Channel MOSFET
  • 152 µA Operating Quiescent Current
  • 2 µA Shutdown Current
  • 100 kHz to 2.5 MHz Switching Frequency
  • Adjustable UVLO Voltage and Hysteresis
  • Adjustable Soft-Start and Sequencing
  • UV and OV Power Good Output

Design tools & simulation

SIMULATION MODELS Download
SLVM982.ZIP (677 KB) - PSpice Model
SIMULATION MODELS Download
SLVMA92.TSC (239 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SLVMA93.ZIP (56 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLVMCU3.ZIP (6 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

REFERENCE DESIGNS Download
Automotive I.MX6 Quad Core Processor Power Solution Reference Design
PMP4442 The PMP4442 reference design is an low-cost discrete power solution to power I.MX6 quad core. All the DCDC regulators are running at 2MHz to avoid the AM band interference and provide low solution size. The first stage DCDC converter can support wide Vin range from 6V to 42V, which can support (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Automotive i.MX6 Quad Core Processor Power Reference Design
TIDA-00804 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
WSON (DPR) 10 View options

Ordering & quality

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