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Product details

Parameters

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.1 Vin (Max) (V) 10 Vin (Min) (V) 1.8 Vout (Max) (V) 5.5 Vout (Min) (V) 2.5 Fixed output options (V) 2.5, 2.8, 2.85, 3, 3.3, 5 Noise (uVrms) 23 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 150 Load capacitance (Min) (µF) 0 Rating Catalog Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection Accuracy (%) 2 PSRR @ 100 KHz (dB) 46 Dropout voltage (Vdo) (Typ) (mV) 60 Operating temperature range (C) -40 to 85 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Linear regulators (LDO)

Features

  • NEW DMOS TOPOLOGY:
    • Ultra Low Dropout Voltage:
      • 60mV typ at 100mA
      • Output capacitor NOT required for stability
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 23 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
    • IGND = 500 µA at IOUT = 100mA
    • Not Enabled: IGND = 10nA
  • 2.5V,2.8V,2.85V,3.0V,3.3V,5.0V,AND ADJUSTABLE OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
    • SOT23-5 and SO-8
  • APPLICATIONS
    • PORTABLE COMMUNICATION DEVICES
    • BATTERY-POWERED EQUIPMENT
    • PERSONAL DIGITAL ASSISTANTS
    • MODEMS
    • BAR-CODE SCANNERS
    • BACKUP POWER SUPPLIES

All trademarks are the property of their respective owners.

open-in-new Find other Linear regulators (LDO)

Description

The REG101 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low dropout voltage (only 60mV typ at full load), and better transient performance. In addition, no output capacitor is required for stability, unlike conventional low-dropout regulators that are difficult to compensate and require expensive low ESR capacitors greater than 1µF.

Typical ground pin current is only 500µA (at IOUT = 100mA) and drops to 10nA when not in enabled mode. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variation and under dropout conditions.

The REG101 has very low output noise (typically 23µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. Accuracy is maintained over temperature, line, and load variations. Key parameters are guaranteed over the specified temperature range (-40°C to +85°C).

The REG101 is well protected—internal circuitry provides a current limit which protects the load from damage. Thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG101 is available in the SOT23-5 and the SO-8 packages.

open-in-new Find other Linear regulators (LDO)
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Technical documentation

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No results found. Please clear your search and try again. View all 11
Type Title Date
* Datasheet DMOS 100mA Low-Dropout Regulator datasheet (Rev. D) Sep. 08, 2005
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 Noise Demystified (Rev. A) Aug. 09, 2017
Application notes LDO PSRR Measurement Simplified (Rev. A) Aug. 09, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guides Universal Low-Dropout (LDO) Linear Voltage Regulator EVM User's Guide Oct. 12, 2016
Application notes Packaging Limits Range of Linear Regulators May 08, 2010
User guides DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) Jun. 02, 2005
More literature DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) Feb. 14, 2001

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
$5.00
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS76901EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76901 SOT-23 LDO in an application to regulate from 5 V to a selectable output. The EVM includes input and output capacitors.

Features

Same size and TO-220 package. Simplifies designing of the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS76918EVM-127 give designer an easy layout for using and evaluating TPS76918 SOT23 LDO in an application to regulate from 5V to a 1.8V output. It includes input and output capacitors.

Features

Same size and TO220 package. Simplifies designing the core power power supply for low power TMS320C54x DSPs.

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The TPS76933EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76933 SOT-23 LDO in an application to regulate from 5 V to a 3.3-V output. The EVM includes input and output capacitors.

Features

Same size and TO-220 package. Simplifies designing the power supply for the core power of low-power TMS320C54x digital signal processors (DSPs).

EVALUATION BOARDS Download
document-generic User guide
$49.00
EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The purpose of this EVM is to facilitate evaluation of the TPS793xx family of LDO regulators. Each EVM package contains one SLVP191 test board, with either a TPS79301DBV linear regulator or a TPS79328DBV linear regulator, as well as supporting passive components. The TPS79301DBV adjustable device (...)

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options

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