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TPS54231 Datasheet PDF

Part Series:TPS54231 Series
Description:2A 28V Input 570kHz Step Down SWIFTä‹ DC-DC Converter with Eco-Mode ä‹
Document:TPS54231DRG4 Datasheet PDF (38 Pages)

TPS54231 Datasheet PDF

33 Pages
TI
Conv DC-DC 3.5V to 28V Step Down Single-Out 0.8V to 25V 2A 8Pin SOIC Tube
31 Pages
TI
2A, 3.5V to 28V Input SWIFT (tm) Converter Evaluation Module

TPS54231 - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Case/Package
SOIC-8
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TPS54231 - TI Function Overview

The TPS54231 device is a 2-V, 2-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 device is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.
3.5- to 28-V Input Voltage Range
Adjustable Output Voltage Down to 0.8 V
Integrated 80-mΩ High-Side MOSFET
Supports up to 2 A Continuous Output
Current
High Efficiency at Light Loads with a
Pulse Skipping Eco-mode™
Fixed 570-kHz Switching Frequency
Typical 1-µA Shutdown Quiescent
Current
Adjustable Slow-Start Limits Inrush
Currents
Programmable UVLO Threshold
Overvoltage Transient Protection
Cycle-by-Cycle Current Limit, Frequency
Fold Back and Thermal Shutdown Protection
Available in Easy-to-Use SOIC8 Package
Supported by WEBENCH® Software Tool
(www.TI.com/WEBENCH)
APPLICATIONS
Consumer Applications such as Set-Top Boxes,
CPE Equipment, LCD Displays, Peripherals, and
Battery Chargers
Industrial and Car Audio Power Supplies
5-V, 12-V and 24-V Distributed Power Systems
WEBENCH Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners
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