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Product details

Parameters

Output options Adjustable Output, Programmable 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 (uVrms) 4.4 Iq (Typ) (mA) 2.8 Thermal resistance θJA (°C/W) 43 Load capacitance (Min) (µF) 47 Rating Catalog Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection, Output Discharge, Power Good, Soft Start Accuracy (%) 0.75 PSRR @ 100 KHz (dB) 40 Dropout voltage (Vdo) (Typ) (mV) 75 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

VQFN (RGR) 20 12 mm² 3.5 x 3.5 VQFN (RGW) 20 25 mm² 5 x 5 open-in-new Find other Linear regulators (LDO)

Features

  • Low Dropout: 200 mV (max) at 2 A
  • 0.75% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Output Voltage Noise:
    • 4.4 µVRMS at 0.8-V Output
    • 7.7 µVRMS at 5.2-V Output
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • ANY-OUT™ Operation:
    • Output Voltage Range: 0.8 V to 3.95 V
  • Adjustable Operation:
    • Output Voltage Range: 0.8 V to 5.2 V
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Excellent Load Transient Response
  • Adjustable Soft-Start In-Rush Control
  • Open-Drain Power-Good (PG) Output
  • Stable with a 22-µF or Larger Ceramic Output Capacitor
  • θJC = 3.4°C/W
  • Packages, 20-Pin VQFN:
    • 3.5 mm × 3.5 mm (RGR)
    • 5 mm × 5 mm (RGW)

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Description

The TPS7A83A device 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 device output voltage is pin-programmable from 0.8 V to 3.95 V and adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low noise (4.4 µVRMS), high PSRR, and high output current capability makes the TPS7A83A ideal to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. The high performance of the TPS7A83A limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and RF components. 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.

open-in-new Find other Linear regulators (LDO)
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Exact equivalent in functionality and parametrics to the compared device:
TPS7A8300 ACTIVE 2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy 2-A LDO regulator with good accuracy (1%) and improved thermal resistance (35.4°C/W)
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
TPS7A92 ACTIVE 2-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy 2-A, low noise (4.7 uVrms) LDO in a small package (2.5 mm x 2.5mm)
Similar but not functionally equivalent to the compared device:
TPS7A89 ACTIVE 2-A, low-noise, high-accuracy, dual-channel adjustable ultra-low-dropout voltage regulator – Dual-channel low noise 2-A LDO in 4-mm x 4-mm package

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 7
Type Title Date
* Datasheet TPS7A83A 2-A, High-Accuracy (0.75%), Low-Noise (4.4 µVRMS) LDO Regulator datasheet (Rev. A) Nov. 30, 2017
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 guide Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guide TPS7A8300EVM-579 User's Guide Apr. 07, 2014

Design & development

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

Hardware development

EVALUATION BOARD Download
20
Description

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 (...)

Features
  • Very low noise: 6 uVRMS
  • High PSRR: Over 40 dB up to 60 MHz
  • Ultra-low Dropout: 125mV (max)
  • Low Input Voltage Range: 1.4V to 6.5V (no bias rail), 1.1V to 6.5 (with bias rail)
  • ANY-OUT: No-Resistor, Configurable Output Voltage: 0.8V to 3.95V in 50mV step

Design tools & simulation

SIMULATION MODEL Download
SBVM356B.ZIP (50 KB) - PSpice Model
SIMULATION MODEL Download
SBVM380.TSC (57 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBVM381.ZIP (8 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBVM525.ZIP (2 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
High-Current Low-Noise Parallel LDO Reference Design
TIDA-01232 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 (...)
document-generic Schematic

CAD/CAE symbols

Package Pins Download
VQFN (RGR) 20 View options
VQFN (RGW) 20 View options

Ordering & quality

Information included:
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  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

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

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