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Product details

Parameters

Output options Adjustable Output, Programmable Output Iout (Max) (A) 1 Vin (Max) (V) 36 Vin (Min) (V) 3 Vout (Max) (V) 34 Vout (Min) (V) 1.4 Noise (uVrms) 4 Iq (Typ) (mA) 0.58 Thermal resistance θJA (°C/W) 33 Load capacitance (Min) (µF) 10 Rating Catalog Regulated outputs (#) 1 Features Enable, Soft Start Accuracy (%) 2.5 PSRR @ 100 KHz (dB) 60 Dropout voltage (Vdo) (Typ) (mV) 307 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

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

Features

  • Input Voltage Range: +3 V to +36 V
  • Output Voltage Noise:
    4 µVRMS (10 Hz, 100 kHz)
  • Power-Supply Ripple Rejection:
    • 82 dB (100 Hz)
    • > 55 dB (10 Hz, 10 MHz)
  • Two Output Voltage Modes:
    • ANY-OUT™ Version (User-Programmable
      Output via PCB Layout):
      • No External Feedback Resistors or
        Feed-Forward Capacitors Required
      • Output Voltage Range: +1.4 V to +20.5 V
    • Adjustable Version (TPS7A4701 only):
      • Output Voltage Range: +1.4 V to +34 V
  • Output Current: 1 A
  • Dropout Voltage: 307 mV at 1 A
  • CMOS Logic Level-Compatible Enable Pin
  • Built-In Fixed Current Limit and
    Thermal Shutdown
  • Available in High-Performance Thermal Package:
    5-mm × 5-mm QFN
  • Operating Temperature Range:
    –40°C to 125°C
open-in-new Find other Linear regulators (LDO)

Description

The TPS7A47 is a family of positive voltage (+36 V), ultralow-noise (4 µVRMS) low-dropout linear regulators (LDO) capable of sourcing a 1-A load.

The TPS7A4700 output voltages are user-programmable (up to 20.5 V) using a printed circuit board (PCB) layout without the need of external resistors or feed-forward capacitors, thus reducing overall component count.

The TPS7A4701 output voltage can be configured with a user-programmable PCB layout (up to 20.5 V), or adjustable (up to 34 V) with external feedback resistors.

The TPS7A47 is designed with bipolar technology primarily for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This feature makes the device ideal for powering operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry in critical applications such as medical, radio frequency (RF), and test-and-measurement.

In addition, the TPS7A47 is ideal for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversions, maximum system performance is ensured in sensitive instrumentation, test-and-measurement, audio, and RF applications.

For applications where positive and negative low-noise rails are required, consider TI’s TPS7A33 family of negative high-voltage, ultralow-noise linear regulators.

open-in-new Find other Linear regulators (LDO)
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TPS7A88 ACTIVE 1-A, low-noise, high-PSRR, dual-channel adjustable ultra-low-dropout voltage regulator A dual-channel, low noise, 1-A LDO.
TPS7A91 ACTIVE 1-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy A single-channel, low-noise, 1-A LDO

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 15
Type Title Date
* Datasheet TPS7A470x 36-V, 1-A, 4-µVRMS, RF LDO Voltage Regulator datasheet (Rev. F) Oct. 01, 2014
Technical articles Choosing buck converters and LDOs for miniature industrial automation equipment: what to consider Jan. 29, 2020
Application notes A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
Technical articles Designing a pre-tracking regulator, part 1: for a positive-output LDO Feb. 18, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Selection guides Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Selection guides Low Dropout Regulators Quick Reference Guide (Rev. P) Mar. 21, 2018
Application notes LDO Noise Demystified (Rev. A) Aug. 09, 2017
Selection guides TI Components for Aerospace and Defense Guide (Rev. E) Mar. 22, 2017
White papers How to measure LDO noise Jul. 24, 2015
User guides TPS7A47xx User's Guide (Rev. A) Aug. 02, 2013
Application notes 1Q 2013Issue Analog Applications Journal Jan. 22, 2013
Application notes How to pick a linear regulator for noise-sensitive applications Jan. 22, 2013
Application notes ANY-OUT™ LDO Controlled by I2C™ IO Expander Device (Rev. A) Sep. 20, 2012

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The ADC08060 evaluation module (EVM) is designed to evaluate the high-speed
CMOS-interface ADC08060. The ADC08060EVM provides simple and minimal external components to minimize system cost and power consumption.

Features
  • ADC08060 low-cost high-speed analog-to-digital converter (ADC)
  • TPS7A47 user-programmable, radio-frequency (RF), low-dropout (LDO) voltage regulator
  • CDCV304 high-performance low-skew clock buffer
  • LM8272 high-output current, unlimited capacitive load operational amplifier
  • SN74AVC16244 dynamic output (...)
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Description

The ADC08100 evaluation module (EVM) is designed to evaluate the high-speed
CMOS-interface ADC08100. The ADC08100EVM provides simple and minimal external components to minimize system cost and power consumption.

Features
  • ADC08100 low-cost high-speed analog-to-digital converter (ADC)
  • TPS7A47 user-programmable, radio-frequency (RF), low-dropout (LDO) voltage regulator
  • CDCV304 high-performance low-skew clock buffer
  • LM8272 high-output current, unlimited capacitive load operational amplifier
  • SN74AVC16244 dynamic output (...)
EVALUATION BOARDS Download
document-generic User guide
Description

The ADC08200 evaluation module (EVM) is designed to evaluate the high-speed
CMOS-interface ADC08200. The ADC08200EVM provides simple and minimal external components to minimize system cost and power consumption.

Features
  • ADC08200 low-cost high-speed analog-to-digital converter (ADC)
  • TPS7A47 user-programmable, radio-frequency (RF), low-dropout (LDO) voltage regulator
  • CDCV304 high-performance low-skew clock buffer
  • LM8272 high-output current, unlimited capacitive load operational amplifier
  • SN74AVC16244 dynamic output (...)
EVALUATION BOARDS Download
document-generic User guide
149
Description

The ADC1175-50 evaluation module (EVM) is used to evaluate the ADC1175-50 8-bit, 50-MSPS analog-to-digital converter (ADC). The EVM has a single-ended, DC-coupled analog input to accommodate the ADC1175-50 full-scale sampling range. The ADC1175-50EVM is designed to connect directly to a variety of (...)

Features
  • Clocking provided by onboard crystal or external source
  • 40-pin header connects directly to TSW1400EVM and TSW1405EVM data-capture solution via CMOS interface
  • High-Speed Data Converter Pro Software (DATACONVERTERPRO-SW) analysis tool provides complete environment for signal analysis, including data (...)
EVALUATION BOARDS Download
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Description

The ADC32RF82 evaluation module (EVM) demonstrates the performance of a dual, 2.45-GSPS, 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF82 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the (...)

Features
  • External clocking supported or onboard clock generation with LMK04828-generating SYSREF
  • JESD204B data interface simplifies digital interface; compliant up to 12.5-GBPS lane rates
  • Onboard power management with Texas Instruments
EVALUATION BOARDS Download
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Description

The ADS114S08 evaluation module (EVM) is a platform for evaluation of the ADS114S08 analog-to-digital converter (ADC). The ADS114S08 is a 16-bit, 4-kSPS, 12-channel, low-power delta-sigma ADC for sensor measurement and process control applications. The ADS114S08 also includes a highly-accurate (...)

Features
  • Includes all required support circuitry for ADS114S08
  • Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
  • Configurable inputs, references, and supplies
  • Easily accessible signals via test points and headers
EVALUATION BOARDS Download
document-generic User guide
Description

The ADS122C04 evaluation module (EVM) is a platform for evaluating the ADS122C04 analog-to-digital converter (ADC). The ADS122C04 is a 24-bit, 2-kSPS, 4-channel, low-power delta-sigma ADC with an I2C interface for sensor measurement and process control applications. The ADS122C04 also includes an (...)

Features
  • Includes all required support circuitry for ADS122C04
  • Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
  • Configurable inputs, references, and supplies
  • Easily accessible signals via test points and headers
EVALUATION BOARDS Download
document-generic User guide
Description

The ADS122U04 evaluation module (EVM) is a platform for evaluation of the ADS122U04 analog-to-digital converter (ADC). The ADS122U04 is a 24-bit, 2-kSPS, 4-channel, low-power delta-sigma ADC with a UART interface for sensor measurement and process control applications. The ADS122U04 also includes an (...)

Features
  • Includes all required support circuitry for ADS122U04
  • Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
  • Configurable inputs, references, and supplies
  • Easily accessible signals via test points and headers
EVALUATION BOARDS Download
document-generic User guide
Description

The ADS1235 evaluation module (EVM) is a platform for evaluating the ADS1235 analog-to-digital converter (ADC). ADS1235 is a low-drift, 24-bit, 7200-SPS, 6-channel delta-sigma (ΔΣ) ADC with an integrated PGA for low-noise bridge measurements. This sensor-ready ADC provides a (...)

Features
  • Includes all required support circuitry for ADS1235
  • Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
  • Configurable inputs, references, and supplies
  • Easily-accessible signals via test points and headers
EVALUATION BOARDS Download
document-generic User guide
Description

The ADS1261 evaluation module (EVM) is a platform for evaluating the ADS1261 analog-to-digital converter (ADC). ADS1261 is a low-drift, 24-bit, 40-kSPS, 10-channel delta-sigma (ΔΣ) ADC with an integrated PGA, voltage reference, and internal fault monitors. This sensor-ready ADC provides (...)

Features
  • Includes all required support circuitry for ADS1261
  • Delta-Sigma ADC EvaluaTIon Software (DELTASIGMAEVAL-GUI) enables quick configuration and analysis
  • Configurable inputs, references, and supplies
  • Easily-accessible signals via test points and headers
EVALUATION BOARDS Download
document-generic User guide
149
Description

The ADS8168 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS8168 successive-approximation register (SAR) analog-to-digital converter (ADC). The ADS8168EVM-PDK includes the ADS8168EVM board, the precision host interface (PHI (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance of the ADS8168 ADC
  • No external power supply required
  • Ships with PHI controller that provides a convenient interface to ADS8168EVM over USB 2.0 (or higher) for power delivery, as well as digital input/output
  • (...)
EVALUATION BOARDS Download
document-generic User guide
149
Description

The ADS8332 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS8332 successive-approximation register (SAR) analog-to-digital converter (ADC). ADS8332EVMV2-PDK includes the ADS8332EVMV2 board, the precision host interface (PHI (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of the ADS8332 ADC
  • No external power supply required
  • Ships with PHI controller that provides convenient communication interface to ADS8332EVM over USB 2.0 (or higher) for power delivery, as (...)
EVALUATION BOARDS Download
document-generic User guide
149
Description

The ADS8686S evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the ADS8686S dual simultaneous-sampling analog-to-digital converter (ADC) with an integrated analog front end (AFE).

ADS8686SEVM-PDK includes the ADS8686SEVM board and a precision host interface (PHI (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance of ADS8686S ADC
  • PHI controller provides a convenient communication interface to ADS8686SEVM over USB 2.0 (or higher) for power delivery, as well as digital input/output
  • Easy-to-use evaluation software for (...)
EVALUATION BOARDS Download
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149
Description

The ADS9120 evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS9120 successive-approximation register analog-to-digital converter (SAR ADC). The ADS9120EVM-PDK includes the ADS9120 EVM board, the PHI controller board, and accompanying (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of the ADS9120 ADC
  • No external power supply required
  • Ships with PHI EVM controller that provides a convenient interface to the EVM over USB 2.0 (or higher) for power delivery, as well as (...)
EVALUATION BOARDS Download
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149
Description

The ADS9224R evaluation module (EVM) performance demonstration kit (PDK) is a platform for evaluating the performance of the ADS9224R successive-approximation register (SAR) analog-to-digital converter (ADC), which is a fully-differential input, 16-bit, 3-MSPS device. ADS9224REVM-PDK (...)

Features
  • Includes hardware and software required for diagnostic testing, as well as accurate performance evaluation of ADS9224R ADC
  • USB powered; no external power supply required
  • PHI controller provides a convenient communication interface to ADS9224R ADC over USB 2.0 (or higher) for power (...)
EVALUATION BOARDS Download
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Description
The DAC38RF87 evaluation module (EVM) is the circuit board for evaluating the DAC38RF87 digital-to-analog converter (DAC). The EVM can be used to evaluate the performance of the DAC up to 9-GSPS sampling rate and is designed to work with the TSW14J56EVM (Rev B and up). The available FMC connector (...)
Features
  • Allows evaluation of DAC38RF87/97 up to 9-GSPS sampling rate
  • Supports up to 12.5-Gbps SerDes signaling rate across FMC
  • Two on-chip PLLs with superior phase noise to simplify system clock generation; also supports external clock mode
  • AC-coupled output with integrated impedance transformer (DAC38RF87) for (...)
EVALUATION BOARDS Download
document-generic User guide
2499
Description

The DDC2256AEVM evaluation module  (EVM)  is  an  evaluation  kit  for the DDC2256A,  a  256-channel,  current  input,  24-bit analog-to-digital (A/D) converter. The EVM kit, comprised of a DUT board and a capture board, contains two DDC2256A (...)

Features
  • All-in-one solution for evaluating two DDC2256A devices in a system-like setting
  • On-board FPGA, memory, and USB interface allow for data capture and analysis of large sample datasets
  • Flexible supply configurations for simple or advanced experimentation
  • Various input voltage configurations allow for (...)
EVALUATION BOARDS Download
document-generic User guide
499
Description

PLABS-SAR-EVM-PDK is an experimental platform used in conjunction with TI Precision Labs videos to gain a deeper understanding of successive approximation register (SAR) analog-to-digital converter (ADC) circuits. The evaluation module (EVM) platform contains two channels for common SAR (...)

Features
  • Intuitive setup – PCB overlay shows the schematic
  • No external power supply required
  • Includes several coupon boards with different driving amplifier RC filters to facilitate experimentation
  • Ships with PHI controller - provides convenient interface to EVM over USB 2.0 (or higher) for power delivery (...)
EVALUATION BOARDS Download
document-generic User guide
20
Description
The TPS7A3301EVM-061 evaluation module (EVM) helps you evaluate the performance of the TPS7A33 low-dropout (LDO) linear regulator. The TPS7A33 device is a –36-V input, –1-A, ultra-low-noise, negative voltage LDO linear regulator. The EVM is a standalone evaluation (...)
Features
  • Input voltage range: –3 V to –36 V
  • Noise: 14 μVRMS (20 Hz, 20 kHz), 15.1 μVRMS (10 Hz, 100 kHz)
  • Power-supply ripple rejection: 65 dB (1 kHz)
  • Fixed output: –15 V
  • Dropout voltage: 0.6 V at 1 A
  • Stable with ceramic capacitors ≥ 10 μF
  • CMOS logic level-compatible enable
  • Thermal shutdown protection
  • Overcurrent (...)
EVALUATION BOARDS Download
document-generic User guide
20
Description
The TPS7A4701EVM-094 is a fully assembled and tested evaluation module (EVM) for evaluating the TPS7A47 ultra-low-noise low-dropout (LDO) regulator at adjustable output voltages that range from 1.4 V to 34 V. The EVM circuit is configured to be a reference design for engineering applications (...)
Features
  • Input voltage range: 3 V to 36 V
  • Programmable from 1.4 V to 34 V; pin-strap output voltage from 1.4 V to 18 V
  • Low dropout: 600 mV at 1 A
  • 3.5 µVRMS (10 Hz, 100 KHz)
  • <25 nV/√Hz (10 Hz, 1 MHz)
  • Built-in fixed current limit and thermal shutdown
  • CMOS logic-level-compatible enable (EN) pin
  • Maximum output current of (...)
EVALUATION BOARDS Download
document-generic User guide
2499
Description

The TSW40RF80 evaluation module (EVM) is a two-transmit two-receive (2T2R) RF-sampling transceiver reference design. The module contains the DAC38RF80 dual-channel RF-sampling digital-to-analog converter (DAC) and the ADC32RF45 dual-channel RF-sampling analog-to-digital converter (ADC).

The DAC38RF80 (...)

Features
  • RF-sampling transceiver utilizing the JESD204B interface
  • DAC38RF80 dual RF DAC with single-ended output
  • ADC32RF45 dual RF ADC with bypass option
  • LDO-less power-management solution
  • Onboard clocking solution; four different ADC clocking options, including TX PLL clock output
  • Interfaces with TSW14J56 or (...)
EVALUATION BOARDS Download
document-generic User guide
2499
Description

The TSW40RF82 evaluation module (EVM) is a two-transmit two-receive (2T2R) RF-sampling transceiver reference design. The module contains the DAC38RF82 dual-channel RF-sampling digital-to-analog converter (DAC) and the ADC32RF45 dual-channel RF-sampling analog-to-digital converter (ADC).

The DAC38RF82 (...)

Features
  • RF-sampling transceiver utilizing the JESD204B interface
  • DAC38RF82 dual RF DAC with differential output
  • ADC32RF45 dual RF ADC with bypass option
  • LDO-less power-management solution
  • Onboard clocking solution; four different ADC clocking options, including TX PLL clock output
  • Interfaces with TSW14J56 or FPGA (...)

Software development

PLUG-INS Download
ADC1173 8-Bit 15MSPS Analog-to-Digital Converter (ADC) Evaluation Module
ADC1173EVM The ADC1173 evaluation module (EVM) is used to evaluate the ADC1173 8-bit, 15-MSPS analog-to-digital converter (ADC). The EVM has a single-ended, DC-coupled analog input to accommodate the ADC1173 full-scale sampling range. The ADC1173EVM is designed to connect directly to a variety of (...)
149
Features
  • Operational amplifier provides buffering and signal conditioning for DC-coupled input network
  • Clocking provided by onboard crystal or external source
  • 40-pin header connects directly to TSW1400EVM and TSW1405EVM data-capture solution via CMOS interface
  • High-Speed Data Converter Pro Software (...)
PLUG-INS Download
ADC1175 8-Bit 20MSPS Analog-to-Digital Converter (ADC) Evaluation Module
ADC1175EVM The ADC1175 evaluation module (EVM) is used to evaluate the ADC1175 8-bit, 20-MSPS analog-to-digital converter (ADC). The EVM has a single-ended, DC-coupled analog input to accommodate the ADC1175 full-scale sampling range. The ADC1175EVM is designed to connect directly to a variety of data-capture (...)
149
Features
  • Operational amplifier provides buffering and signal conditioning for DC-coupled input network
  • Clocking provided by onboard crystal or external source
  • 40-pin header connects directly to TSW1400EVM and TSW1405EVM data-capture solution via CMOS interface
  • High-Speed Data Converter Pro Software (...)

Design tools & simulation

SIMULATION MODELS Download
SBVM190A.ZIP (40 KB) - PSpice Model
SIMULATION MODELS Download
SBVM302.TSC (776 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBVM303.ZIP (10 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBVM364A.ZIP (40 KB) - PSpice Model
SIMULATION MODELS Download
SBVM401.ZIP (15 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBVM402.ZIP (9 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBVM621A.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SBVM663.ZIP (1 KB) - PSpice Model
SIMULATION MODELS Download
SBVM939.ZIP (2 KB) - PSpice Model
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Many TI reference designs include the TPS7A47 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
VQFN (RGW) 20 View options

Ordering & quality

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