# TLV702 LDO: 300 mA, 35 µA quiescent, 1.2 to 4.8 V fixed

> A low-noise 300 mA low-dropout regulator in SOT-23 for 3.3 V sensor and MCU rails: dropout, accuracy, quiescent current and PSRR.

Canonical: https://roboticsengineering.in/components/tlv702-low-iq-ldo/ | Published: 2026-11-03 | Updated: 2026-11-03

**The TLV702 series are fixed-output low-dropout regulators that supply 300 mA with 2 percent accuracy, 35 µA quiescent current and a dropout of 220 mV at full load for a 2.8 V output.** It is a small, quiet 3.3 V or 2.8 V rail for sensors and microcontrollers. Figures are from the Texas Instruments TLV702 datasheet SLVSAG6D.

## Key specifications

| Current | 300 mA |
| --- | --- |
| IQ | 35 µA |
| Accuracy | 2% |
| Output | 1.2–4.8 V fixed |
| Dropout | 220 mV at 300 mA (2.8 V out) |
| PSRR | 68 dB at 1 kHz |

## What the datasheet promises

| Item | Datasheet value |
| --- | --- |
| Output current | 300 mA |
| Output voltage | Fixed versions from 1.2 V to 4.8 V |
| Accuracy | 2 percent |
| Quiescent current | 35 µA |
| Dropout | 37 mV at 50 mA, 75 mV at 100 mA and 220 mV at 300 mA (2.8 V output) |
| Ripple rejection | 68 dB at 1 kHz |
| Output capacitor | Stable with effective capacitance of 0.1 µF |
| Protection | Thermal shutdown and current limit; TLV702P adds active output pulldown |
| Packages | SOT-23-5 and WSON-6 (1.5 × 1.5 mm) |

It is a linear regulator, so the dissipated power is the input-output voltage difference times the load current; for a large step down from a 12 V rail use a switching converter such as the [TPS62130](https://roboticsengineering.in/components/tps62130-buck-converter/) first.

## Using it on a robot

- Power a 3.3 V microcontroller or sensor from a single Li-ion cell, where the low dropout lets the cell discharge further.
- Use it after a switching regulator to clean up a rail for an analog sensor.
- Place the input and output capacitors close to the pins, as the datasheet layout section says.

## Sources and further reading

- [Texas Instruments TLV702 datasheet (SLVSAG6D)](https://www.ti.com/lit/ds/symlink/tlv702.pdf) — current, accuracy, quiescent current, dropout, PSRR and packages 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.