Product details

Output options Fixed Output Iout (Max) (A) 0.4 Vin (Max) (V) 10 Vin (Min) (V) 2.7 Vout (Max) (V) 5 Vout (Min) (V) 2.5 Fixed output options (V) 2.5, 2.85, 3, 3.3, 5 Noise (uVrms) 28 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 160 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 28 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 85
Output options Fixed Output Iout (Max) (A) 0.4 Vin (Max) (V) 10 Vin (Min) (V) 2.7 Vout (Max) (V) 5 Vout (Min) (V) 2.5 Fixed output options (V) 2.5, 2.85, 3, 3.3, 5 Noise (uVrms) 28 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 160 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable, Foldback Overcurrent Protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 28 Dropout voltage (Vdo) (Typ) (mV) 250 Operating temperature range (C) -40 to 85
SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • CAP-FREE DMOS TOPOLOGY:
    • Ultra Low Dropout Voltage:
         250mV typ at 400mA
         Output capacitor not required for stability
  • UP TO 500mA PEAK, TYPICAL
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
      IGND = 850 µA at IOUT = 400mA
    Not Enabled: IGND = 0.01 µA
  • 2.5V, 2.85V, 3.0V, 3.3V, AND 5.0V OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
      SOT23-5 and MSOP-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.

  • CAP-FREE DMOS TOPOLOGY:
    • Ultra Low Dropout Voltage:
         250mV typ at 400mA
         Output capacitor not required for stability
  • UP TO 500mA PEAK, TYPICAL
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
      IGND = 850 µA at IOUT = 400mA
    Not Enabled: IGND = 0.01 µA
  • 2.5V, 2.85V, 3.0V, 3.3V, AND 5.0V OUTPUT VERSIONS
  • OTHER OUTPUT VOLTAGES AVAILABLE UPON REQUEST
  • FOLDBACK CURRENT LIMIT
  • THERMAL PROTECTION
  • SMALL SURFACE-MOUNT PACKAGES:
      SOT23-5 and MSOP-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.

The REG113 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 250mV 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 850µA (at IOUT = 400mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG113 has very low output noise (typically 28µVrms 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 tested over the specified temperature range (–40°C to +85°C).

The REG113 is well protected—internal circuitry provides a current limit which protects the load from damage; futhermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG113 is available in the SOT23-5 and MSOP-8 packages.

The REG113 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 250mV 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 850µA (at IOUT = 400mA) and drops to 10nA when not enabled. Unlike regulators with PNP pass devices, quiescent current remains relatively constant over load variations and under dropout conditions.

The REG113 has very low output noise (typically 28µVrms 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 tested over the specified temperature range (–40°C to +85°C).

The REG113 is well protected—internal circuitry provides a current limit which protects the load from damage; futhermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG113 is available in the SOT23-5 and MSOP-8 packages.

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Technical documentation

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Type Title Date
* Data sheet DMOS 400mA Low-Dropout Regulator datasheet (Rev. D) 08 Sep 2005
Application note LDO Noise Demystified (Rev. B) 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) 09 Aug 2017
User guide Universal Low-Dropout (LDO) Linear Voltage Regulator EVM User's Guide 12 Oct 2016
Application note Packaging Limits Range of Linear Regulators 08 May 2010
User guide DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) 02 Jun 2005
More literature DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) 14 Feb 2001

Design & development

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

Evaluation board

DEM-SOT23LDO — DEM-SOT23LDO Compatible With Most Positive-Output LDO Regulators in 5- or 6-Lead SOT23 (DBV) Package

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Limit: 5
Evaluation board

TPS76901EVM-127 — SOT-23 LDO, 5-V to 1.8-V, 100-mA output power supply

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.

In stock
Limit: 5
Evaluation board

TPS76918EVM-127 — SOT23 LDO, 5 V to 3.3 V, 100mA output power supply

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.

In stock
Limit: 5
Evaluation board

TPS76933EVM-127 — SOT-23 LDO, 5-V to 1-V, 100-mA output power supply

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.

In stock
Limit: 5
Evaluation board

TPS79301EVM — TPS79301 Evaluation Module

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Limit: 5
Evaluation board

TPS79328EVM — TPS79328 Evaluation Module

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 (...)

In stock
Limit: 5
Package Pins Download
SOT-23 (DBV) 5 View options
VSSOP (DGK) 8 View options

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