5.5V to 36V Input, 2A, 500kHz Step-Down Converter
Product details
Parameters
Package | Pins | Size
Features
- Wide Input Voltage Range: 5.5 V to 36 V
- Up to 2-A Continuous (3-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 Over Current Limiting, Over Voltage
Protection and Thermal
Shutdown - –40°C to 125°C Operating Junction
Temperature Range - Available in Small 8-Pin SOIC Package
Description
The TPS5420 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 is 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, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5420 feedback loop is internally compensated.
The TPS5420 device is available in an easy to use 8-pin SOIC 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
Type | Title | Date | |
---|---|---|---|
* | Datasheet | 2-A Wide Input Range Step-Down Converter datasheet (Rev. E) | Sep. 05, 2013 |
Technical articles | Minimize the impact of the MLCC shortage on your power application | Mar. 29, 2019 | |
Selection guide | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
Application note | Power-supply design for high-speed ADCs (Rev. A) | May 18, 2015 | |
Application note | Output Ripple Voltage for Buck Switching Regulator (Rev. A) | Oct. 13, 2014 | |
More literature | Журнал по применению аналоговых компонентов 1 кв. 2010 | Sep. 23, 2010 | |
Application note | Using the TPS5430 As An Inverting Buck Boost Converter (Rev. A) | Aug. 15, 2007 | |
Application note | Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) | Mar. 21, 2007 | |
User guide | TPS5420EVM-175 User's Guide | Apr. 05, 2006 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The TPS5420EVM-175 evaluation module allows the designer to evaluate the TPS5420 SWIFT DC/DC converter optimized for small size. The input voltage range of this module is 10 V to 36 V and the output voltage is pre-set to 5 V. The output voltage can be easily adjusted by changing a (...)
Features
- Internally compensated for lower parts count
- 500 kHz switching frequency allows smaller filter components
- Low Rds(on) integrated MOSFET 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
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download Parallel Redundancy Protocol Ethernet for Substation Automation BOM.pdf (135KB) -
download Parallel Redundancy Protocol Ethernet for Substation Automation Assembly Drawing.pdf (1192KB) -
download Parallel Redundancy Protocol Ethernet for Substation Automation Layer Plots.pdf (1366KB) -
download Parallel Redundancy Protocol Ethernet for Substation Automation CAD Files.zip (3014KB)
Design files
-
download PMP4648 BOM.pdf (34KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
SOIC (D) | 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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