Product details


Output options Adjustable Output, Programmable Output Iout (Max) (A) 1 Vin (Max) (V) 6.5 Vin (Min) (V) 1.43 Vout (Max) (V) 5 Vout (Min) (V) 0.9 Noise (uVrms) 40 Iq (Typ) (mA) 4 Thermal resistance θJA (°C/W) 36 Load capacitance (Min) (µF) 4.7 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good, Soft Start Accuracy (%) 1.5 PSRR @ 100 KHz (dB) 25 Dropout voltage (Vdo) (Typ) (mV) 140 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 VQFN (RGW) 20 25 mm² 5 x 5 open-in-new Find other Linear regulators (LDO)


  • Low-Dropout Voltage: 140 mV at 1 A
  • VIN Range: 1.5 V to 6.5 V
  • Configurable Fixed VOUT Range: 0.9 V to 3.5 V
  • Adjustable VOUT Range: 0.9 V to 5 V
  • Very Good Load- and Line-Transient Response
  • Stable With Ceramic Output Capacitor
  • 1.5% Accuracy Overline, Overload, and
  • Programmable Soft Start
  • Power Good (PG) Output
  • 3-mm × 3-mm QFN-16 and 5-mm × 5-mm QFN-
    20 Packages
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The TPS7A7100 low-dropout (LDO) voltage regulator is designed for applications seeking very-low dropout capability (140 mV at 1 A) with an input voltage from 1.5 V to 6.5 V. The TPS7A7100 offers an innovative, user-configurable, output-voltage setting from 0.9 V to 3.5 V, eliminating external resistors and any associated error.

The TPS7A7100 has very fast load-transient response, is stable with ceramic output capacitors, and supports a better than 2% accuracy over line, load, and temperature. A soft-start pin allows for an application to reduce inrush into the load. Additionally, an open-drain, power-good signal allows for sequencing power rails.

The TPS7A7100 is available in 3-mm × 3-mm, 16-pin VQFN and 5-mm × 5-mm, 20-pin VQFN packages.

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TPS746 ACTIVE 1-A, low-IQ, high-accuracy, adjustable ultra-low-dropout voltage regulator with power good & enable 1-A LDO regulator with lower IQ in a 2-mm by 2-mm package
TPS7A91 ACTIVE 1-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy Single-channel, low-noise, 1-A LDO regulator

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TPS7A7100 1-A, Fast-Transient, Low-Dropout Voltage Regulator datasheet (Rev. F) Mar. 23, 2015
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Selection guides Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application notes ANY-OUT™ LDO Controlled by I2C™ IO Expander Device (Rev. A) Sep. 20, 2012
Application notes ANY-OUT™ LDO Controlled by I2C™ IO Expander Device May 29, 2012
User guides TPS7A7x00EVM-718 Evaluation Module Feb. 28, 2012

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 Texas Instruments TPS7A7100EVM-718 is a fully assembled and tested Evaluation Module (EVM) for evaluating the TPS7A7100 Low-Dropout Regulator at any of its pin-selectable output voltages (1V to 3.5V in 50mV increments). The EVM circuit is configured to be a reference design for engineering (...)
  • Wide Vin range 1.5V – 6.5V
  • No Resistor Dynamic Vout Configuration
  • 2% Accuracy
  • Low Output Noise (30mVRMS)
  • High PSRR (PSRR 55dB @ 1kHz)
  • Programmable Soft Start
  • Power Good Output

Design tools & simulation

SBVM148.ZIP (16 KB) - PSpice Model
SBVM419.ZIP (15 KB) - TINA-TI Reference Design
SBVM420.ZIP (8 KB) - TINA-TI Spice Model
SLTR028.PDF (38 KB)

CAD/CAE symbols

Package Pins Download
VQFN (RGT) 16 View options
VQFN (RGW) 20 View options

Ordering & quality

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