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Product details

Parameters

Output options Adjustable Output Iout (Max) (A) 1.5 Vin (Max) (V) 5.5 Vin (Min) (V) 0.8 Vout (Max) (V) 3.5 Vout (Min) (V) 0.8 Noise (uVrms) 13 Iq (Typ) (mA) 3 Thermal resistance θJA (°C/W) 27 Load capacitance (Min) (µF) 0 Rating Catalog Regulated outputs (#) 1 Features Enable, Power Good, Soft Start Accuracy (%) 1 PSRR @ 100 KHz (dB) 52 Dropout voltage (Vdo) (Typ) (mV) 55 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

TO-263 (KTW) 7 154 mm² 10.1 x 15.24 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

  • Input Voltage Range: 0.8 V to 5.5 V
  • Soft-Start (SS) Pin Provides a Linear Start-Up With Ramp Time Set by External Capacitor
  • 1% Accuracy Over Line, Load, and Temperature
  • Supports Input Voltages as Low as 0.8 V With External Bias Supply
  • Adjustable Output (0.8 V to 3.6 V)
  • Ultra-Low Dropout: 55 mV at 1.5 A (Typical)
  • Stable With Any or No Output Capacitor
  • Excellent Transient Response
  • Open-Drain Power-Good (VQFN)
  • Active High Enable
open-in-new Find other Linear regulators (LDO)

Description

The TPS742 series of low-dropout (LDO) linear regulators provide an easy-to-use, robust power-management solution for a wide variety of applications. User-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current on start-up. The soft-start is monotonic and well suited for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators. This complete flexibility permits the user to configure a solution that meets the sequencing requirements of FPGAs, DSPs, and other applications with special start-up requirements.

A precision reference and error amplifier deliver 1% accuracy over load, line, temperature, and process. Each LDO is stable with low-cost ceramic output capacitors, and the family is fully specified from –40°C to 125°C. The TPS742 devices are offered in a small 5-mm × 5-mm VQFN (RGW) and a small 3.5-mm × 3.5-mm VQFN (RGR) package, yielding a highly compact total solution size. For applications that require additional power dissipation, the DDPAK/TO-263 (KTW) package is also available.

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TPS7A8300 ACTIVE 2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy TPS7A8300 is the next-generation version of this device with lower noise.
TPS7A83A ACTIVE 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout voltage regulator with power good 2-A LDO with lower-noise (4.4uVrms), low dropout (200mV) and improved accuracy (0.75%) and wider VOUT range
TPS7A92 ACTIVE 2-A, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy 2-A LDO with lower noise (4.7uVrms) LDO in small package (2.5x2.5mm)

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 TPS742 1.5-A Ultra-LDO With Programmable Soft-Start datasheet (Rev. N) Nov. 17, 2016
Application notes LDO Noise Demystified (Rev. B) Aug. 18, 2020
Application notes Using Thermal Calculation Tools for Analog Components (Rev. A) Aug. 30, 2019
Application notes A Topical Index of TI LDO Application Notes (Rev. F) Jun. 27, 2019
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
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
Application notes LDO Performance Near Dropout Oct. 08, 2010
Application notes Using New Thermal Metrics Dec. 15, 2009
Application notes Q3 2007 Issue Analog Applications Journal Aug. 10, 2007
Application notes Simultaneous power-down sequencing with the TPS74x01 family of linear regulators Aug. 10, 2007
Application notes A 3-A, 1.2-Vout linear regulator with 80% efficiency and Plost < 1W Oct. 10, 2006
User guides TPS74x01EVM-118 User's Guide Jun. 20, 2006

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 ADC32RF42 evaluation module (EVM) demonstrates the performance of a dual 1.5-GSPS 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF42 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the necessary (...)

Features
  • External clocking supported, or onboard clock generation with LMK04828 generating SYSREF
  • JESD204B data interface to simplify digital interface; compliant up to 12.5-Gbps lane rates
  • Onboard power management with TI
EVALUATION BOARDS Download
document-generic User guide
Description

The ADC32RF44 evaluation module (EVM) demonstrates the performance of a dual 2.5-GSPS 14-bit analog-to-digital converter (ADC) with the JESD204B interface. The EVM includes the ADC32RF44 device, and JESD204B clocking is provided by the LMK04828 and TI voltage regulators to provide the necessary (...)

Features
  • External clocking supported, or onboard clock generation with LMK04828 generating SYSREF
  • JESD204B data interface to simplify digital interface; compliant up to 12.5-Gbps lane rates
  • Onboard power management with TI
EVALUATION BOARDS Download
document-generic User guide
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
document-generic User guide
Description

The ADS58J64EVM is an evaluation board used to evaluate the ADS58J64 Integrated Receiver from Texas Instruments. The ADS58J64 is a low power, 14-bit, 500-MSPS, quad channel telecom receiver with a buffered analog input. The device supports JESD204B interface and data rates up to 10Gbps. The EVM has (...)

Features
  • Transformer-coupled signal input network, allows a single-ended signal source to the EVM
  • On board system clock generator (LMK04828) generates the FPGA reference clock, ADC sampling clock and SYSREFs for the high-speed JESD204B serial interface
  • Default transformer-coupled clock input network enables (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description

The DP149RSBEVM is a PCB created to help customers evaluate the DP149 device for video applications.  This EVM can also be used as a hardware reference design for implementation of the DP149 in the RSB package.  PCB design/layout files can be provided upon request to provide PCB design (...)

Features
  • Plug and play design
  • I2C programming interface for external I2C host connection
  • Local I2C Access through USB Interface via TUSB3410
  • A DC Power Jack (J9) to accept a 5-V wall power adapter. Alternately, it is possible to power the EVM by connecting a USB Micro cable from J13 to a USB host and setting (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description

The DP159RSBEVM is a PCB created to help customers evaluate the DP159 device for video applications.  The EVM has a DP connection for the source and a HDMI connection for the sink.  J2 is a standard DP connector (Molex 47272-0001).  P2 is a standard HDMI connector (Molex (...)

Features
  • Plug and play design
  • I2C programming interface for external I2C host connection
  • Local I2C Access through USB Interface via TUSB3410
  • A DC Power Jack (J9) to accept a 5-V wall power adapter. Alternately, it is possible to power the EVM by connecting a USB Micro cable from J13 to a USB host and setting (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description

The DP159RSBEVM is a PCB created to help customers evaluate the DP159 device for video applications.  The EVM has a DP connection for the source and a HDMI connection for the sink.  J2 is a standard DP connector (Molex 47272-0001).  P2 is a standard HDMI connector (Molex (...)

Features
  • Plug and play design
  • I2C programming interface for external I2C host connection
  • Local I2C Access through USB Interface via TUSB3410
  • A DC Power Jack (J9) to accept a 5-V wall power adapter. Alternately, it is possible to power the EVM by connecting a USB Micro cable from J13 to a USB host and setting (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description
The SN65DSI83Q1-EVM evaluation module (EVM) is a printed circuit board (PCB) that helps customers implement the SN65DSI83-Q1 device in system hardware.  This EVM includes on-board connectors for DSI input and LVDS output signals.  These connectors are for connecting (...)
Features
  • Plug and play design
  • Input options for DSI video signal (QSH-type connector and FX-type connector)
  • Output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
  • I2C interface to configure internal registers
  • LED backlight driver circuitry using TI's backlight (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description
The SN65DSI85EVM evaluation module (EVM) is a printed circuit board (PCB) that helps customers implementthe SN65DSI85 device in system hardware. This EVM can be used as a hardware reference design for any implementation using the SN65DSI85 device. The SN65DSI85EVM includes (...)
Features
  • Plug and play design
  • Two input options for DSI video signal (QSH-type connector and FX-type connector)
  • Two output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
  • I2C interface to configure internal registers
  • LED backlight driver circuitry using TI's (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description
The SN65DSI85Q1EVM is a PCB created to help customers implementing SN65DSI85Q1 in system hardware.  This EVM includes on-board connectors for DSI input and LVDS output signals.  These connectors are for connecting MIPI DPHY compliant DSI source and LVDS panels to the EVM.
Features
  • Plug and play design
  • Two input options for DSI video signal (QSH-type connector and FX-type connector)
  • Two output port options available for the LVDS output signals (QSH-type connector and I-PEX-type connector)
  • I2C interface to configure internal registers
  • Incorporates LED backlight driver circuitry (...)
EVALUATION BOARDS Download
document-generic User guide
249
Description
The TDP158 EVM is a PCB created to help customers evaluate the TDP158 device for video applications.  This EVM can also be used as a hardware reference design for implementation of the TDP158 in the RSB package.  PCB design/layout files can be provided upon request to provide PCB design (...)
Features
  • DisplayPort connection for the source and HDMI connection for the sink
  • The EVM can be powered by a 5-V wall power adapter external power or though Micro USB cable
  • I2C communications for debug and control purposes
EVALUATION BOARDS Download
document-generic User guide
299
Description

The TMDS171 EVM is a PCB created to help customers evaluate the TMDS171 device for video applications with HDMI interfaces.  This EVM can also be used as a hardware reference design for implementation of the TMDS171 in the RGZ package.  PCB design/layout files can be provided upon request (...)

Features
  • Plug and Play design
  • Three device enable/reset options to use with the EVM
  • Access to TMDS171's local I2C signals is provided via J5 input connector
  • A DC Power Jack (J9) to accept a 5-V wall power adapter. Alternately, it is possible to power the EVM by connecting a USB Micro cable from J13 to a USB (...)
EVALUATION BOARDS Download
document-generic User guide
299
Description
The TMDS181RGZEVM is a PCB created to help customers evaluate the TMDS181 device for video applications with HDMI interfaces.
Features
  • Plug and play design
  • Three device enable/reset options to use with the EVM
  • Local I2C Access
  • A DC Power Jack (J9) to accept a 5-V wall power adapter. Alternately, it is possible to power the EVM by connecting a USB Micro cable from J13 to a USB host and setting SW2 to position 3
  • Configuration available (...)

Design tools & simulation

SIMULATION MODELS Download
SBVM620.ZIP (3 KB) - PSpice Model
SIMULATION MODELS Download
SLIM016B.ZIP (61 KB) - PSpice Model
SIMULATION MODELS Download
SLIM288.ZIP (36 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SLIM289.TSC (106 KB) - TINA-TI Reference Design

Reference designs

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TIDA-010057 — Significant technological advancements and high degree of integration in Medical imaging, especially hand-held ultrasound smart probes, are pushing engineers to come up with highly-efficient, noise immune power solutions in a small size. This reference design documents end to end power and data (...)
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REFERENCE DESIGNS Download
Clocking Reference Design for RF Sampling ADCs in Signal Analyzers and Wireless Testers
TIDA-01016 — TIDA-01016 is a clocking solution for high dynamic range high speed ADC. RF input signals are directly captured using the RF sampling approach by high speed ADC. The ADC32RF45 is a dual- channel, 14-bit, 3-GSPS RF sampling ADC. The 3-dB input bandwidth is 3.2 GHz, and it captures signals up to 4 GHz (...)
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REFERENCE DESIGNS Download
1-GHz Signal Bandwidth RF Sampling Receiver Reference Design
TIDA-01161 — The RF sampling architecture offers an alternative to the traditional super-heterodyne architecture. An RF sampling analog-to-digital converter (ADC) operates at a high sampling rate and converts signals directly from radio frequencies (RF) to digital. Because of the high sampling rate, the RF (...)
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REFERENCE DESIGNS Download
Multi-band RF Sampling Receiver Reference Design
TIDA-01163 — The RF sampling receiver captures signals directly in the radio frequency (RF) band. In a multi-band application the desired signals are not very wide band but they are spaced far apart within the spectrum. The reference design captures signals in different RF bands and digitally down-converts them (...)
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REFERENCE DESIGNS Download
HDMI 2.0 ESD Protection Reference Design
TIDA-050001 — This reference design is to show two distinct ways to protect the TMDS lines of a HDMI 2.0 drivers and retimers from electrostatic discharge (ESD). The HDMI standard is used in many applications from set-topboxes to notebooks to TV's. Since these ports are almost always external they are susceptible (...)
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REFERENCE DESIGNS Download
RF-Sampling S-Band Radar Receiver Reference Design
TIDA-00814 — A direct RF sampling receiver approach to a radar system operating in S-band is demonstrated using the ADC32RF45, 3-Gsps, 14-bit analog to digital converter (ADC). RF sampling reduces the complexity of a system by removing down conversion and using a high sampling rate enables wider signal (...)
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REFERENCE DESIGNS Download
High-Bandwidth Arbitrary Waveform Generator Reference Design: DC or AC coupled, High-Voltage output
TIDA-00684 — In TIDA-00684 reference design a quad-channel TSW3080 evaluation module (EVM) is developed to shows how to use an active amplifier interface with the DAC38J84 to demonstrate an arbitrary-waveform-generator frontend. The DAC38J84 provides four DAC channels with 16 bits of resolution with a maximum (...)
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REFERENCE DESIGNS Download
FPGA Firmware Example of How To Interface Altera FPGAs to High-Speed LVDS-Interface Data Converters
TIDA-00069 This reference design and the associated example Verilog code can be used as a starting point for interfacing Altera FPGAs to Texas Instruments' high-speed LVDS-interface analog-to-digital converters (ADC) and digital-to-analog converters (DAC). The firmware implementation is explained and the (...)
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REFERENCE DESIGNS Download
Altera Stratix Vgx Reference Design
PMP9284 Reference Design for the Stratix Vgx. This design takes into account sequencing needs. Applicable for 25W applications

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Design files

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTW) 7 View options
VQFN (RGR) 20 View options
VQFN (RGW) 20 View options

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