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
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 guide | 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 note | Using TPS54335A to Create an Inverting Power Supply (Rev. A) | Jul. 19, 2017 | |
User guide | 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
Description
The TPS54531EVM-530 is a fully assembled and tested circuit for evaluating the TPS54531 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 5 A and 95.3% efficiency.
Features
- 8-V to 28-V input voltage range
- 95.3% efficiency (VIN = 8 V, IO = 0.7 A)
- High efficiency at light loads with pulse-skipping eco-mode
- Integrated 80-mΩ high-side MOSFET supports up to 5-A continuous output current
Description
The USB-PD-CHG-EVM-01 evaluation module (EVM) is used to evaluate the BQ25792 device and TPS25750 device together. The BQ25792 is an integrated switched-mode buck-boost battery charge management device in HOTROD (QFN) package, intended for 1- to 4-series cell Li-ion and Li-polymer batteries from (...)
Features
- Easily evaluate the combination of a high-efficiency 5-A switch-mode buck-boost charger and USB Type-C and PD Controller with integrated switches.
- Use of Aardvark™ connector to change the PD controller flash settings to meet the user's desired configuration.
- Use of an onboard internal I2C lines (...)
Design tools & simulation
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
Design files
-
download TIDA-050047 BOM.pdf (70KB) -
download TIDA-050047 Assembly Drawing.pdf (260KB) -
download TIDA-050047 PCB.pdf (1704KB) -
download TIDA-050047 CAD Files.zip (35192KB) -
download TIDA-050047 Gerber.zip (696KB)
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)
Design files
Design files
Design files
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
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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