TPS54331DDAR
Voltage Regulators - DC DC Switching Regulators
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Voltage | 12.9 V |
| Output Current | 3 A |
| Function | Step-down type |
| Working Voltage V | 15.75 V |
| Switching Freq Hz | 570 kHz |
| Channels | 1 |
| Type | Description |
|---|---|
| Iq A | 0 A |
| Switch tube (built-in/external) | Built-in |
| Operating Temp | -40°C ~ +150°C @(TJ) |
| Features | Adjustable soft-start;Light load efficient mode;Cycle-by-cycle current limiting;Overcurrent Protection;External compensation |
| Topology | Buck |
| Package / Case | SOIC-8-EP |
Product Introduction
The TPS54331 device is a 28-V, 3-A nonsynchronous buck converter that integrates a low R_DS(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 undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD package that have been internally optimized to improve thermal performance.
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 3-A Continuous Output Current
- High Efficiency at Light Loads With a Pulse Skipping Eco-mode
- Fixed 570 kHz Switching Frequency
- Typical 1-μA Shutdown Quiescent 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 SOIC8 Package or Thermally Enhanced SOIC8 PowerPAD Package
Applications
- - Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays, Peripherals, and Battery Chargers - Industrial and Car-Audio Power Supplies - 5-V, 12-V, and 24-V Distributed Power Systems
Datasheet
Alternative Parts
Common TPS54331DDAR 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 |
Sourcing Information
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