TPS5430DDAR
Voltage Regulators - DC DC Switching Regulators
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 16.631 V |
| Output Current | 3 A |
| Function | Step-down type |
| Working Voltage V | 20.75 V |
| Switching Freq Hz | 500 kHz |
| Channels | 1 |
| Type | Description |
|---|---|
| Iq A | 0.004 A |
| Switch tube (built-in/external) | Built-in |
| Operating Temp | -40°C ~ +125°C @(TJ) |
| Features | Cycle-by-cycle current limiting;Hiccup current limiting;Overcurrent Protection |
| Topology | Buck |
| Package / Case | SOIC-8-EP |
Product Introduction
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 undervoltagelockout 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 feedforward 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.
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
Applications
- - Consumer: Set-top Box, DVD, LCD Displays - Industrial and Car Audio Power Supplies - Battery Chargers, High Power LED Supply - 12-V/24-V Distributed Power Systems
Datasheet
Alternative Parts
Common TPS5430DDAR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Frequently Asked Questions
Is the TPS5430DDAR Compatible With 24-V Industrial Power Systems?
Yes, it is fully compatible. The TPS5430DDAR supports a wide input voltage range from 5.5 V to 36 V, making it well-suited for standard 12-V and 24-V distributed power buses while providing a regulated step-down output current up to 3 A.
What Are the Primary Application Scenarios for This Step-Down Converter?
The TPS5430DDAR is ideal for consumer electronics like set-top boxes, LCD displays, and DVD players, as well as industrial equipment, automotive audio systems, battery chargers, high-power LED drivers, and general 12-V or 24-V distributed DC power rails.
What Are the Key Technical Specifications of the TPS5430DDAR?
Key specifications include an input range of 5.5 V to 36 V, adjustable output voltage from 1.221 V to 32.04 V, 3-A continuous output current, 500-kHz fixed switching frequency, internal compensation, integrated 110-mΩ MOSFET, and an 8-pin SOIC PowerPAD package.
Sourcing Information
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