TPS7A7100

ACTIVE

1-A, ultra-low-dropout voltage regulator with low-noise & power good

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Product details

Output options Adjustable Output, Fixed 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 (µVrms) 40 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 36 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1.5 PSRR at 100 KHz (dB) 25 Dropout voltage (Vdo) (typ) (mV) 140 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed 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 (µVrms) 40 Iq (typ) (mA) 4 Thermal resistance θJA (°C/W) 36 Rating Catalog Load capacitance (min) (µF) 4.7 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 1.5 PSRR at 100 KHz (dB) 25 Dropout voltage (Vdo) (typ) (mV) 140 Operating temperature range (°C) -40 to 125
VQFN (RGT) 16 9 mm² 3 x 3 VQFN (RGW) 20 25 mm² 5 x 5
  • Low-dropout voltage: 140 mV at 1 A
  • V IN range: 1.5 V to 6.5 V
  • Configurable fixed V OUT range: 0.9 V to 3.5 V
  • Adjustable V OUT 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 overtemperature
  • Programmable soft-start
  • Power-good (PG) output
  • Package s:
    • 3-mm × 3-mm, 16-pin VQFN
    • 5-mm × 5-mm, 20-pin VQFN
  • Low-dropout voltage: 140 mV at 1 A
  • V IN range: 1.5 V to 6.5 V
  • Configurable fixed V OUT range: 0.9 V to 3.5 V
  • Adjustable V OUT 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 overtemperature
  • Programmable soft-start
  • Power-good (PG) output
  • Package s:
    • 3-mm × 3-mm, 16-pin VQFN
    • 5-mm × 5-mm, 20-pin VQFN

The TPS7A7100 low-dropout (LDO) voltage regulator is designed for applications requiring 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, thus eliminating external resistors and any associated errors.

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.

The TPS7A7100 low-dropout (LDO) voltage regulator is designed for applications requiring 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, thus eliminating external resistors and any associated errors.

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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Technical documentation

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Type Title Date
* Data sheet TPS7A7100 1-A,Fast-Transient, Low-Dropout Voltage Regulator datasheet (Rev. G) PDF | HTML 30 Oct 2023
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML 14 Dec 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML 13 Dec 2022
Selection guide Low Dropout Regulators Quick Reference Guide (Rev. P) 21 Mar 2018
Application note ANY-OUT™ LDO Controlled by I2C™ IO Expander Device (Rev. A) 20 Sep 2012
Application note ANY-OUT™ LDO Controlled by I2C™ IO Expander Device 29 May 2012
User guide TPS7A7x00EVM-718 Evaluation Module 28 Feb 2012

Design & development

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Evaluation board

TPS7A7100EVM-718 — TPS7A7100 Low-Dropout (LDO) Linear Regulator Evaluation Module

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 (...)
User guide: PDF
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Simulation model

TPS7A7100 PSpice Transient Model

SBVM148.ZIP (16 KB) - PSpice Model
Simulation model

TPS7A7100 TINA-TI Transient Reference Design

SBVM419.ZIP (15 KB) - TINA-TI Reference Design
Simulation model

TPS7A7100 TINA-TI Transient Spice Model

SBVM420.ZIP (8 KB) - TINA-TI Spice Model
Package Pins Download
VQFN (RGT) 16 View options
VQFN (RGW) 20 View options

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