Product details


Output options Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 6 Vin (Min) (V) 1.6 Vout (Max) (V) 5.5 Vout (Min) (V) 0.8 Fixed output options (V) 0.9, 1.05, 1.2, 1.5, 1.8, 1.825, 1.85, 2.4, 2.5, 2.7, 2.8, 2.85, 3, 3.1, 3.2, 3.3, 3.6, 4, 4.2, 4.5, 5 Noise (uVrms) 7 Iq (Typ) (mA) 0.0065 Thermal resistance θJA (°C/W) 179.1 Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Enable, Output Discharge Accuracy (%) 1.5 PSRR @ 100 KHz (dB) 60 Dropout voltage (Vdo) (Typ) (mV) 140 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 X2SON (DQN) 4 1 mm² 1 x 1 open-in-new Find other Linear regulators (LDO)


  • Low output voltage noise: 7 µVRMS
    • No noise-bypass capacitor required
  • High PSRR: 95 dB at 1 kHz
  • Very low IQ: 6.5 µA
  • Input voltage range: 1.6 V to 6.0 V
  • Output voltage range: 0.8 V to 5.5 V
  • Output voltage tolerance: ±1.5% (max)
  • Very low dropout:
    • 140 mV (max) at 300 mA (VOUT = 3.3 V)
    • 145 mV (max) at 300 mA (VOUT = 3.3 V, DBV)
  • Low inrush current
  • Smart enable pulldown
  • Stable with 1-µF minimum ceramic output capacitor
  • Packages:
    • 1-mm × 1-mm X2SON
    • 0.603-mm × 0.603-mm DSBGA (preview)
    • 2.90-mm × 1.60-mm SOT23-5

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The TPS7A20 is an ultra-small, low-dropout (LDO) linear regulator that can source 300 mA of output current. The TPS7A20 is designed to provide low noise, high PSRR, and excellent load and line transient performance that can meet the requirements of RF and other sensitive analog circuits. Using innovative design techniques, the TPS7A20 offers an ultra-low noise performance without the addition of a noise bypass capacitor. The TPS7A20 also provides the advantage of low quiescent current, which can be ideal for battery-powered applications. With an input voltage range of 1.6 V to 6.0 V and an output range of 0.8 V to 5.5 V, the TPS7A20 can be used for a wide variety of applications. The device uses a precision reference circuit to provide a maximum accuracy of 1.5% over load, line, and temperature variations.

The TPS7A20 features an internal soft-start to lower the inrush current, thus minimizing the input voltage drop during start up. The device is stable with small ceramic capacitors, allowing for a small overall solution size.

The TPS7A20 has a smart enable input circuit with an internally controlled pulldown resistor that keeps the LDO disabled even when the EN pin is left floating and helps eliminate the external components used to pulldown the EN pin.

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Technical documentation

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Type Title Date
* Data sheet TPS7A20 300-mA, Ultra-Low-Noise, Low-IQ, High PSRR LDO datasheet (Rev. C) Nov. 17, 2020
White paper Understanding the Foundations of Quiescent Current in Linear Power Systems Feb. 18, 2021
Technical article How to design an infrared thermometer quickly Apr. 07, 2020
Technical article LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical article LDO Basics: Preventing reverse current Jul. 25, 2018
Technical article LDO basics: introduction to quiescent current Jun. 20, 2018
User guide Universal Low-Dropout (LDO) Linear Voltage Regulator EVM User's Guide Oct. 12, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The MULTIPKGLDOEVM-823 evaluation module (EVM) helps you evaluate the operation and performance of several common packages of linear regulators for possible use in circuit applications. This particular EVM configuration has a DRB, DRV, DQN and DBV footprint for you to solder and (...)

  • Supports almost all LDO linear regulators in DBV, DRB, DRV and DQN packages

Design tools & simulation

SBVM961.ZIP (19 KB) - PSpice Model

Reference designs

Low-power wireless camera reference design for extended battery life
TIDA-010224 — This reference design provides a solution for a battery-operated wireless camera by combining industry-leading image processing, connectivity, sensor and power. High-efficiency power converters along with optimized system architecture help to increase battery life. The image
processor with a (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
(YCK) 4 View options
SOT-23 (DBV) 5 View options
X2SON (DQN) 4 View options

Ordering & quality

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  • Qualification summary
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

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