Product details


Output options Adjustable Output Iout (Max) (A) 0.3 Vin (Max) (V) 6 Vin (Min) (V) 1.65 Vout (Max) (V) 5.5 Vout (Min) (V) 1.2 Noise (uVrms) 30 Iq (Typ) (mA) 0.025 Thermal resistance θJA (°C/W) 171 Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Enable Accuracy (%) 0.75 PSRR @ 100 KHz (dB) 49 Dropout voltage (Vdo) (Typ) (mV) 115 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 open-in-new Find other Linear regulators (LDO)


  • Output accuracy:
    • ±0.5% (typ), ±0.75%, –40°C to +85°C
  • Device junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 1.65 V to 6.0 V
  • Adjustable output voltage range: 1.2 V to 5.5 V
  • Low IQ: 25 µA (typ)
  • Ultra-low dropout:
    • 115 mV (max) at 300 mA (3.3 VOUT)
  • Internal 350-µs soft-start time to reduce inrush current
  • Active output discharge
  • Package: 5-pin SOT-23
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The TPS784 is an adjustable 300-mA ultra low-dropout regulator (LDO) with a low quiescent current. This device is available in a small 5-pin, 2.9-mm × 1.6-mm, SOT-23 package and has an excellent line and load transient performance.

The low output noise and great PSRR performance make this device suitable to power-sensitive analog loads. The TPS784 is a flexible device for post regulation because this device supports an input voltage range from 1.65 V to 6.0 V and offers an adjustable output range of 1.2 V to 5.5 V.

The TPS784 offers foldback current limit to reduce power dissipation during over current condition. The EN input helps with power sequencing requirements of the system. The internal soft-start provides a controlled startup reducing the inrush current and allowing for a small input capacitor to be used.

The TPS784 provides an active pulldown circuit to quickly discharge output loads when disabled.

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Technical documentation

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Type Title Date
* Data sheet TPS784 300-mA, Low IQ, High-PSRR, Low-Dropout Voltage Regulator With High Accuracy and Enable datasheet (Rev. A) Oct. 22, 2020
Technical article What’s not in the power MOSFET data sheet part 2: voltage-dependent leakage currents Jul. 23, 2021
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

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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

CAD/CAE symbols

Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

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