3.5V to 28V Input, 5A, 570kHz Step-Down Converter with Eco-mode
Product details
Parameters
Package | Pins | Size
Features
- 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 5-A Continuous Output
Current - High Efficiency at Light Loads with a
Pulse Skipping Eco-mode™ - Fixed 570kHz Switching Frequency
- Typical 1µA Shutdown Quiescen
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 Thermally Enhanced
8-Pin SO PowerPAD™ Package
Description
The TPS54531 device is a 28-V, 5-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 under-voltage 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 TPS54531 device is available in 8-pin SO PowerPAD™ package that has been internally optimized to improve thermal performance.
Technical documentation
= Top documentation for this product selected by TI
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TPS54531 5-A, 28-V Input, Step-Down SWIFT™ DC-DC Converter With Eco-mode™ datasheet (Rev. A) | Oct. 29, 2014 |
| Selection guides | Buck Converter Quick Reference Guide (Rev. A) | Mar. 31, 2020 | |
| Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
| Application notes | Using TPS54335A to Create an Inverting Power Supply (Rev. A) | Jul. 19, 2017 | |
| User guides | TPS54531EVM-530, 5-A, Regulator Evaluation Module | Mar. 05, 2013 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
TPS54531EVM-530
Description
The Texas Instruments TPS54531EVM-530 evaluation module (EVM) helps designers evaluate the performance of the TPS54531 5A, 28V input, Step-Down Converter with Eco-Mode.
Features
- High wfficiency at light loads with Skipping Eco-mode™
- External soft-start
- Integrated 80-mΩ High-Side MOSFET supports up to 5-A continuous output current
Design tools & simulation
SLVM872A.ZIP (309 KB) - PSpice Model
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
TIDA-010010 — PLC applications require high speed gigabit Ethernet interface. This can be realized using our reference design which implements the DP83867IR industrial gigabit Ethernet physical layer transceiver to the gigabit Ethernet MAC peripheral block inside the Sitara™ AM5728 processor.
Design files
-
download TIDA-010010 BOM.pdf (67KB) -
download TIDA-010010 Assembly Files.zip (129KB) -
download TIDA-010010 Layer Plots.zip (555KB) -
download TIDA-010010 CAD Files.zip (7678KB) -
download TIDA-010010 Gerber.zip (1211KB)
TIDEP0076 — The TIDEP0076 3D machine vision design describes an embedded 3D scanner based on the structured light principle. A digital camera along with a Sitara™ AM57xx processor System on Chip (SoC) is used to capture reflected light patterns from a DLP4500-based projector. Subsquent processing of (...)
Design files
TIDEP0046 — TI’s high performance ARM® Cortex®-A15 based AM57x processors also integrate C66x DSPs. These DSPs were designed to handle high signal and data processing tasks that are often required by industrial, automotive and financial applications. The AM57x OpenCL implementation makes it easy (...)
Design files
TIDEP0047 — This TI Design (TIDEP0047) is a reference platform based on the AM57x processor and companion TPS659037 power management integrated circuit (PMIC). This TI Design specifically highlights important power and thermal design considerations and techniques for systems designed with AM57x and (...)
Design files
PMP30224 — The PMP30224 reference design provides 5.0V at 1.0A continuous / 5.0A peak and 1.8V @ 0.075A for a TAS2555 Class D Amplifier. The input voltage range is between 5.0V and 38.0V.
Design files
-
download PMP30224 BOM.pdf (22KB) -
download PMP30224 Assembly Drawing.pdf (133KB) -
download PMP30224 PCB.pdf (153KB) -
download PMP30224 CAD Files.zip (448KB) -
download PMP30224 Gerber.zip (26KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SO PowerPAD (DDA) | 8 | View options |
Ordering & quality
Support & training
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