4.5-V to 28-V Input, 3-A Output, EMI Friendly Synchronous Step-Down Converter
Product details
Parameters
Package | Pins | Size
Features
- 4.5-V to 28-V Wide Input Voltage Range
- Integrated 85-mΩ and 40-mΩ MOSFETs for 3-A, Continuous Output Current
- Low 2-μA Shutdown, 45-μA Quiescent Current
- Internal 5-mS Soft-Start
- Fixed 400-kHz Switching Frequency
- Frequency Spread Spectrum to Reduce EMI
- Advanced Eco-mode Pulse Skip
- Peak Current Mode Control
- Internal Loop Compensation
- Overcurrent Protection for Both MOSFETs with Hiccup Mode Protection
- Over Voltage Protection
- Thermal Shutdown
- SOT-23 (6) Package
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Description
The TPS54302 is a 4.5-V to 28-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation and 5-ms internal soft start to reduce component count.
By integrating the MOSFETs and employing the SOT-23 package, the TPS54302 achieves the high power density and offers a small footprint on the PCB.
Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.
In the TPS54302, the frequency spread spectrum operation is introduced for EMI reduction.
Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.
Same functionality and pinout but is not an equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TPS54302 4.5-V to 28-V Input, 3-A Output, EMI Friendly Synchronous Step-Down Converter datasheet (Rev. A) | May 17, 2016 |
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 the TPS54x02 to Create an Inverting Power Supply | Jun. 15, 2018 | |
Application note | SOT23 Package Thermal Consideration | Mar. 02, 2018 | |
Technical articles | Upgrade your TO-220 linear regulator with a pin-compatible buck power module | Sep. 21, 2017 | |
Technical articles | Use an ULQ buck regulator for energy-efficient power products | Sep. 12, 2017 | |
Application note | How to Design a Thermally-Efficient Integrated BLDC Motor Drive PCB (Rev. A) | Feb. 05, 2017 | |
User guide | TPS54302EVM-716 3-A Regulator Evaluation Module User's Guide (Rev. A) | Oct. 10, 2016 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS54302EVM-716 is a fully assembled and tested circuit for evaluating the TPS54302 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 3 A. The TPS54302 delivers 40-μA ultra-low quiescent supply (...)
Features
- 8-V to 28-V input voltage range
- 40-μA ultra-low quiescent supply current (IQ)
- 95.57% efficiency (VIN = 12 V, IO = 1 A)
- 0.6-V internal voltage reference
- 2-μA shutdown quiescent current
- High efficiency at light loads with pulse-skipping eco-mode
- Monotonic start-up into pre-biased outputs
- Synchronous (...)
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-010055 BOM Files.zip (310KB) -
download TIDA-010055 Assembly Files.zip (827KB) -
download TIDA-010055 Layer Plots.zip (2674KB) -
download TIDA-010055 CAD Files.zip (9038KB) -
download TIDA-010055 Gerber.zip (1157KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOT-23-THIN (DDC) | 6 | 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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