TPS54331GDR
Power Management
Technical Specifications
| Type | Description |
|---|---|
| Output Type | Adjustable |
| Output Current | 3 A |
| Function | Step-down type |
| Switching Freq Hz | 570 kHz |
| Channels | 1 |
| Quiescent Current | 190 µA |
| Switch Tube (built-in/external) | Built-in |
| Type | Description |
|---|---|
| Operating Temperature | -40°C~+150°C@(TJ) |
| Features | Adjustable soft-start;Light load efficient mode;Cycle-by-cycle current limiting;Overcurrent Protection;External compensation |
| Topology | Buck |
| Supply Voltage | 3.5V~28V |
| Output Voltage | 800mV~25V |
| Package / Case | SOIC-8 |
Product Introduction
The TPS54331 is a 28V, 3A non-synchronous step-down converter with an integrated high-side MOSFET featuring low RDS(on). To improve efficiency under light-load conditions, a pulse-skip Eco-mode feature is automatically activated. In addition, the 1μA shutdown supply current makes this device suitable for battery-powered applications. Current-mode control with internal slope compensation simplifies external compensation calculations while reducing component count and allowing the use of ceramic output capacitors. A resistive voltage divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoot during startup and transient conditions. Cycle-by-cycle current limiting, frequency foldback, and thermal shutdown protect the device and load under overload conditions. The TPS54331 is available in an 8-pin SOIC package and an 8-pin SOPowerPAD package, both internally optimized for improved thermal performance.
Features
- 3.5V to 28V input voltage range
- Adjustable output voltage down to 0.8V
- Integrated 80mΩ high-side MOSFET
- Up to 3A continuous output current
- High efficiency at light load via pulse-skip Eco-mode
- 570kHz fixed switching frequency
- 1μA shutdown quiescent current (typical)
- Adjustable soft-start for inrush current limiting
- Programmable UVLO threshold
- Overvoltage transient protection
- Cycle-by-cycle current limiting, frequency foldback, and thermal shutdown protection
- Available in easy-to-use SOIC8 or thermally enhanced SOIC8 PowerPAD package
- Create custom designs with TPS54331 using WEBENCH PowerDesigner
Applications
- Consumer applications such as set-top boxes, CPE devices, LCD displays, peripherals, and battery chargers
- Industrial and automotive audio power supplies
- 5V, 12V, and 24V distributed power systems
Datasheet
Alternative Parts
Common TPS54331GDR 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
Need TPS54331GDR from Texas Instruments for your next order? SZ Procure provides local sourcing support in Shenzhen — we help buyers check supplier availability, compare quotations, and coordinate procurement for China-sourced components.
For TPS54331GDR, we can check current supplier availability, compare quotations from multiple sources, coordinate purchasing, and arrange pre-shipment inspection and shipment consolidation according to your requirements.
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