TPS57140-Q1

ACTIVE

Automotive 3.5V to 42V, 1.5A Buck Converter with Eco-Mode™

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Product details

Parameters

Vin (Min) (V) 3.5 Vin (Max) (V) 42 Vout (Min) (V) 0.8 Vout (Max) (V) 39 Iout (Max) (A) 1.5 Iq (Typ) (uA) 116 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

HVSSOP (DGQ) 10 15 mm² 3 x 4.9 VSON (DRC) 10 9 mm² 3 x 3 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
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With Pulse-Skipping Eco-mode Control Scheme
  • 116-μA Operating Quiescent Current
  • 1.5-μA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start and Sequencing
  • Undervoltage and Overvoltage Power-Good Output
  • Adjustable Undervoltage Lockout Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • Supported by SwitcherPro Software Tool
    (www.ti.com/tool/switcherpro)

All trademarks are the property of their respective owners.

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Description

The TPS57140-Q1 device is a 42-V, 1.5-A step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated output supply current to 116 μA. When the enable pin is in the low state, the shutdown current is reduced to 1.5 µA.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing or tracking. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.

A wide switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS57140-Q1 is available in a 10-pin thermally enhanced MSOP-PowerPAD package (DGQ) and a 10-pin VSON package (DRC).

For all available packages, see the orderable addendum at the end of the data sheet.
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Technical documentation

Design & development

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

Design tools & simulation

SIMULATION MODEL Download
SLVM820.ZIP (86 KB) - PSpice Model
SIMULATION MODEL Download
SLVMCV1A.ZIP (62 KB) - PSpice Model
SIMULATION TOOL 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
  • (...)
CALCULATION TOOL Download
TPS54xx0-Q1 and TPS57xx0-Q1 Design Calculation Tool
TPS54-57XX0-CALC This worksheet is designed for use with Microsoft Excel 2002 or later. It intends to assist circuit designers in their day-to-day calculations

This worksheet includes two sections:

  • Recommendations: Calculates the maximum requirements for different components to guarantee the input voltage, output (...)

Reference designs

REFERENCE DESIGNS Download
Electronics and LED Driver Reference Design for Augmented Reality Head-Up Displays
TIDA-080004 — This reference design provides an electronics subsystem designed to drive an automotive augmented reality (AR) head-up display (HUD). DLP® technology enables bright, crisp, highly saturated head-up displays that project critical driving information onto the windshield of the car, reducing driver (...)
document-generic Schematic
REFERENCE DESIGNS Download
Automotive Discrete SBC Pre-Boost, Post-Buck With CAN Reference Design
TIDA-01429 The TIDA-01429 reference design implements a wideinput voltage boost controller, followed by a wide input voltage buck converter set to 5.0 V. The 5.0 V supply is used for powering a Controller Area Network (CAN) transceiver and a compact fixed 3.3 V linear drop-out (LDO) regulator for supplying the (...)
document-generic Schematic
REFERENCE DESIGNS Download
Automotive Radio USB Power Port (5V@2.1A) and LED Backlight Driver Reference Design
PMP11136 — The PMP11136 reference design supplies cable drop compensated USB outputs of 5V @ 2.1A and 5V @ 1A. Additionally, there is a buck converter output of 3.3V @ 2.5A and a 12V @ 0.163A current regulated LED boost converter.
document-generic Schematic
REFERENCE DESIGNS Download
Thermal Protection Reference Design of IGBT Modules for HEV/EV Traction Inverters
TIDA-00794 The TIDA-00794 reference design is a temp sensing solution for IGBT thermal protection in HEV/EV traction inverter system. It monitors the IGBT temperature via the NTC thermistor integrated inside the IGBT module. It provides thermal shut down to the IGBT gate drivers once the NTC thermistor (...)
document-generic Schematic
REFERENCE DESIGNS Download
Wide Input Voltage Non-Synchronous Buck Converter with Integrated MOSFET, 8.0V@1.0A Reference Design
PMP10233 The PMP10233 reference design is a non-synchronous buck converter for automotive applications with an input voltage range of 9 to 42V. It uses the TPS54140-Q1 to deliver an output of 8.0V@1.0A.
document-generic Schematic

CAD/CAE symbols

Package Pins Download
HVSSOP (DGQ) 10 View options
VSON (DRC) 10 View options

Ordering & quality

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