5.5V to 36V Input, 3A, 500kHz Step-Down Converter
Product details
Parameters
Package | Pins | Size
Features
- Wide Input Voltage Range:
- TPS5430: 5.5 V to 36 V
- TPS5431: 5.5 V to 23 V
- Up to 3-A Continuous (4-A Peak) Output Current
- High Efficiency up to 95% Enabled by 110-mΩ Integrated MOSFET Switch
- Wide Output Voltage Range: Adjustable Down to 1.22 V with 1.5% Initial Accuracy
- Internal Compensation Minimizes External Parts Count
- Fixed 500 kHz Switching Frequency for Small Filter Size
- Improved Line Regulation and Transient Response by Input Voltage Feed Forward
- System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
- –40°C to 125°C Operating Junction Temperature Range
- Available in Small Thermally Enhanced 8-Pin SO PowerPAD™ Package
- Create a Custom Design Using the TPS5430 With the WEBENCH® Power Designer
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Description
The TPS543x is a high-output-current PWM converter that integrates a low-resistance, high-side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5 V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, over-voltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS543x feedback loop is internally compensated. The TPS5431 is intended to operate from power rails up to 23 V. The TPS5430 regulates a wide variety of power sources including 24 V bus.
The TPS543x device is available in a thermally enhanced, easy to use 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS5430EVM-173 evaluation module allows the designer to evaluate the TPS5430 SWIFT DC/DC converter and is designed with external components to operate over a wide input voltage range. The input voltage range of this module is 9.0 V to 36 V and the output voltage is pre-set to 5 V (...)
Features
- Internally compensated for lower parts count
- 500 kHz switching frequency allows smaller filter components
- Greater than 90% efficiency
- 2% regulation accuracy
- Supported by SWIFT Designer software tool for quick and easy design
Description
Description
The TPS5431EVM-173 evaluation module allows the designer to evaluate the TPS5431 SWIFT DC/DC converter and is designed with very few external components. The input voltage range of this module is 9.0 V to 21 V and the output voltage is pre-set to 5 V. The output voltage can be easily (...)
Features
- Internally compensated for lower parts count
- 500 kHz switching frequency allows smaller filter components
- Low Rds(on) for greater than 90% efficiency
- 2% regulation accuracy
- Supported by SWIFT Designer software tool for quick and easy design
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
Design files
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download TIDEP0038 BOM.zip (253KB) -
download TIDEP0038 Assembly Drawing (Industrial Camera Expansion).pdf (260KB) -
download TIDEP0038 Assembly Drawing (L138 Industrial IO).pdf (617KB) -
download TIDEP0038 CAD Files (Industrial Camera Expansion).zip (4860KB) -
download TIDEP0038 CAD Files (L138 Industrial IO).zip (16814KB)
Design files
-
download TIDA-00075 BOM.pdf (57KB) -
download TIDA-00075 Layer Plots.zip (3997KB)
Design files
Design files
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.
Support & training
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