TPS5430/31 is a 3A, wide input range step-down Swift converter from TI, used in consumer, industrial and car audio power supplies, battery chargers, high power LED supply and so on.
The TPS5430 and TPS5431 are 3‑A step‑down (buck) converters from Texas Instruments. They feature a wide input voltage range, high efficiency up to 95 %, and a fixed 500 kHz switching frequency that allows small external components. The devices integrate a MOSFET, voltage reference, and internal compensation to simplify design.
The datasheet provides detailed electrical characteristics, absolute maximum ratings, pin assignments, and application information such as undervoltage lockout, boost capacitor selection, and thermal‑pad handling for the PowerPAD™ package. It also includes mechanical data for the thermally enhanced 8‑pin SOIC package.
| Input voltage range (TPS5430) | 5.5 V to 36 V |
|---|---|
| Input voltage range (TPS5431) | 5.5 V to 23 V |
| Output current | Up to 3 A continuous (4 A peak) |
| Switching frequency | 500 kHz |
| Efficiency | up to 95 % |
| Operating temperature range | -40 °C to 125 °C |
| Package | 8‑Pin SOIC PowerPAD™ (Thermally Enhanced) |
The TPS5430 operates from 5.5 V up to 36 V input.
The device can deliver up to 3 A continuously, with a 4 A peak capability.
It uses a fixed switching frequency of 500 kHz.
Both parts are offered in a thermally enhanced 8‑pin SOIC PowerPAD™ package.