# TPS62130 buck converter: 3 to 17 V in, 3 A out, 3 mm QFN

> A compact 2.5 MHz synchronous step-down converter for 12 V rails and Li-ion packs: input range, output range, quiescent current and protections.

Canonical: https://roboticsengineering.in/components/tps62130-buck-converter/ | Published: 2026-11-03 | Updated: 2026-11-03

**The TPS6213x family are synchronous step-down converters that take 3 to 17 V in and deliver up to 3 A at 0.9 to 6 V, switching at a typical 2.5 MHz so the inductor can be small.** That range covers a Li-ion pack and a 12 V rail. It is the synchronous, higher-frequency alternative to the [TPS54331](https://roboticsengineering.in/components/tps54331-buck-converter/). Figures are from the Texas Instruments TPS6213x datasheet SLVSAG7F.

## Key specifications

| Input | 3–17 V |
| --- | --- |
| Output current | 3 A |
| Output | 0.9–6 V adjustable |
| Switching | 2.5 MHz typical |
| IQ | 17 µA typical |
| Shutdown | under 2 µA |
| Package | VQFN-16, 3 × 3 mm |

## What the datasheet promises

| Item | Datasheet value |
| --- | --- |
| Input voltage | 3 to 17 V |
| Output current | Up to 3 A |
| Output voltage | Adjustable from 0.9 V to 6 V; pin-selectable nominal or +5 percent |
| Topology | Synchronous, DCS-Control |
| Switching frequency | 2.5 MHz typical, selectable operating frequency |
| Quiescent current | 17 µA typical in power-save mode |
| Shutdown current | Under 2 µA |
| Features | Programmable soft start and tracking, power-good output, 100 percent duty cycle mode |
| Protection | Short-circuit and overtemperature protection |
| Package | VQFN-16 (RGT), 3 mm × 3 mm |

The QFN package has no leads on the sides, so it is not a part to hand-solder; most robots use it on a ready-made module or a reflowed board. The datasheet gives the inductor and capacitor choices for each output voltage.

## Using it on a robot

- Make 5 V or 3.3 V from a 12 V supply or a multi-cell Li-ion pack within the 17 V limit, with less heat than a linear regulator such as the [LM7805](https://roboticsengineering.in/components/lm7805-fixed-regulator/).
- Use the power-good output to hold a microcontroller in reset until the rail is up.
- Check output ripple on a scope before powering sensitive analog parts.

## Sources and further reading

- [Texas Instruments TPS6213x datasheet (SLVSAG7F)](https://www.ti.com/lit/ds/symlink/tps62130a.pdf) — input and output range, current, frequency, quiescent current and package above.

Last reviewed: November 2026. Limits are from the Texas Instruments datasheet; breakout boards and modules vary. No price is quoted because it has not been checked.