TPS7A83A

ACTIVE

2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 2 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.2 Vout (min) (V) 0.8 Noise (µVrms) 4.4 Iq (typ) (mA) 2.8 Thermal resistance θJA (°C/W) 43 Rating Catalog Load capacitance (min) (µF) 47 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start Accuracy (%) 0.75 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 75 Operating temperature range (°C) -40 to 125
Output options Adjustable Output, Fixed Output Iout (max) (A) 2 Vin (max) (V) 6.5 Vin (min) (V) 1.1 Vout (max) (V) 5.2 Vout (min) (V) 0.8 Noise (µVrms) 4.4 Iq (typ) (mA) 2.8 Thermal resistance θJA (°C/W) 43 Rating Catalog Load capacitance (min) (µF) 47 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start Accuracy (%) 0.75 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 75 Operating temperature range (°C) -40 to 125
VQFN (RGR) 20 12.25 mm² 3.5 x 3.5 VQFN (RGW) 20 25 mm² 5 x 5
  • Low dropout: 200 mV (max) at 2 A
  • Accuracy over line, load, and temperature with BIAS: 0.75% (max)
  • Output voltage noise:
    • 4.4 µVRMS at 0.8-V output
  • Input voltage range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • TPS7A8300A output voltage range:
    • Adjustable operation: 0.8 V to 5.2 V
    • ANY-OUT™ operation: 0.8 V to 3.95 V
  • TPS7A8301A output voltage range:
    • Adjustable operation: 0.5 V to 5.2 V
    • ANY-OUT™ operation: 0.5 V to 2.075 V
  • Power-supply ripple rejection:
    • 40 dB at 500 kHz
  • Excellent load transient response
  • Adjustable soft-start inrush control
  • Open-drain power-good (PG) output
  • Low dropout: 200 mV (max) at 2 A
  • Accuracy over line, load, and temperature with BIAS: 0.75% (max)
  • Output voltage noise:
    • 4.4 µVRMS at 0.8-V output
  • Input voltage range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • TPS7A8300A output voltage range:
    • Adjustable operation: 0.8 V to 5.2 V
    • ANY-OUT™ operation: 0.8 V to 3.95 V
  • TPS7A8301A output voltage range:
    • Adjustable operation: 0.5 V to 5.2 V
    • ANY-OUT™ operation: 0.5 V to 2.075 V
  • Power-supply ripple rejection:
    • 40 dB at 500 kHz
  • Excellent load transient response
  • Adjustable soft-start inrush control
  • Open-drain power-good (PG) output

The TPS7A83A is a low-noise (4.4 µVRMS), low-dropout, linear regulator (LDO) capable of sourcing 2 A with only 200 mV of maximum dropout. The TPS7A8300A output voltage is pin programmable from 0.8 V to 3.95 V with a 50-mV resolution, and adjustable from 0.8 V to 5.2 V using an external resistor divider. The TPS7A8301A output voltage is pin programmable from 0.5 V to 2.075 V with a 25-mV resolution, and adjustable from 0.5 V to 5.2 V using an external resistor divider.

The combination of low noise , high PSRR, and high output current capability makes the TPS7A83A an excellent choice to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. This device is designed for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components because the high performance of the TPS7A83A limits power-supply-generated phase noise and clock jitter. Specifically, RF amplifiers benefit from the high-performance and 5.2-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (0.75% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A83A ensure optimal system performance.

The versatility of the TPS7A83A makes the device a component of choice for many demanding applications.

The TPS7A83A is a low-noise (4.4 µVRMS), low-dropout, linear regulator (LDO) capable of sourcing 2 A with only 200 mV of maximum dropout. The TPS7A8300A output voltage is pin programmable from 0.8 V to 3.95 V with a 50-mV resolution, and adjustable from 0.8 V to 5.2 V using an external resistor divider. The TPS7A8301A output voltage is pin programmable from 0.5 V to 2.075 V with a 25-mV resolution, and adjustable from 0.5 V to 5.2 V using an external resistor divider.

The combination of low noise , high PSRR, and high output current capability makes the TPS7A83A an excellent choice to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. This device is designed for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components because the high performance of the TPS7A83A limits power-supply-generated phase noise and clock jitter. Specifically, RF amplifiers benefit from the high-performance and 5.2-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (0.75% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A83A ensure optimal system performance.

The versatility of the TPS7A83A makes the device a component of choice for many demanding applications.

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Technical documentation

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Type Title Date
* Data sheet TPS7A83A 2-A, High-Accuracy (0.75%), Low-Noise (4.4 μVRMS) LDO Regulator datasheet (Rev. B) PDF | HTML 06 Oct 2021
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
EVM User's guide TPS7A8300EVM-579 User's Guide 07 Apr 2014

Design & development

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

Evaluation board

TPS7A8300EVM-579 — TPS7A8300 evaluation module for low-noise, high-accuracy, ultra-low-dropout voltage regulator

The TPS7A8300EVM-579 evaluation module is designed for a typical configuration to evaluate the operation and performance of the TPS7A8300, 2-A low dropout voltage regulator for high speed communication systems.

The EVM circuit board is configured to be a reference design for engineering applications (...)

User guide: PDF
Not available on TI.com
Simulation model

TPS7A8300 PSpice Transient Model (Rev. B)

SBVM356B.ZIP (50 KB) - PSpice Model
Simulation model

TPS7A8300 TINA-TI Transient Reference Design

SBVM380.TSC (57 KB) - TINA-TI Reference Design
Simulation model

TPS7A8300 TINA-TI Transient Spice Model

SBVM381.ZIP (8 KB) - TINA-TI Spice Model
Simulation model

TPS7A8300 Unencrypted PSpice Transient Model

SBVM525.ZIP (2 KB) - PSpice Model
Calculation tool

PARALLEL-LDO-CALC Parallel low-dropout (LDO) calculator

The parallel low-dropout (LDO) calculator is a Microsoft® Excel®-based tool that provides worst-case analysis for parallel LDO regulators using ballast resistors. The tool helps the user identify the minimum number of parallel LDO regulators required and optimum ballast resistance for a (...)

Supported products & hardware

Supported products & hardware

Products
Linear & low-dropout (LDO) regulators
TPS7A33 1-A, high-PSRR, negative, adjustable low-dropout voltage regulator with enable TPS7A47 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable TPS7A47-Q1 Automotive 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable TPS7A4701-EP Enhanced product, 36-V, 1-A, 4-μVRMS, RF LDO voltage regular TPS7A52 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A52-Q1 Automotive 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A53 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator TPS7A53-Q1 Automotive, 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator TPS7A53A-Q1 Automotive, 3-A, low-VIN 5.6-µVRMS low-noise high-accuracy ultra-low dropout voltage regulator TPS7A53B 3-A, 1.1-V, low-VIN, low-noise high-accuracy ultra-low-dropout voltage regulator with 0.5-V low VREF TPS7A54 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A54-Q1 Automotive 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator TPS7A57 5-A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator TPS7A83A 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A84A 3-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A85A 4-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good TPS7A94 1-A, ultra-low noise, ultra-high PSRR, RF voltage regulator TPS7B7702-Q1 Automotive 300-mA, off-battery (40-V), dual-channel adjustable antenna low-dropout voltage regulator TPS7A8300 2-A, low-VIN, low-2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good wi TPS7A84 3-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A85 4-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A96 2-A, ultra-low noise ultra-high PSRR RF voltage regulator TPS7A4501-SP Radiation-hardened, QMLV, 1.5-V to 20-V input 1.5-A low-dropout (LDO) regulator TPS7H1111-SP Radiation-hardened, QMLV and QMLP, 1.5A ultra-low-noise high-PSRR low-dropout (LDO) regulator TPS7H1111-SEP Radiation-tolerant, 1.5A, ultra-low-noise ultra-high-PSRR RF LDO regulator
Hardware development
Evaluation board
TPS7A57EVM-081 TPS7A57 evaluation module for 5-A low-noise high-accuracy low-dropout (LDO) voltage regulator
Reference designs

TIDA-01232 — High-Current Low-Noise Parallel LDO Reference Design

This parallel low-dropout (LDO) reference design showcases the TPS7A85 low-noise LDO linear regulator in a parallel configuration, which is capable of sourcing 3.5 A per LDO or 7 A per board. Additional design flexibility includes the ability to stack this design to meet the current (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
VQFN (RGR) 20 View options
VQFN (RGW) 20 View options

Ordering & quality

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Information included:
  • Fab location
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Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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