Product details

Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.25 Vin (Max) (V) 10 Vin (Min) (V) 2.2 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) 28 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 150 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 46 Dropout voltage (Vdo) (Typ) (mV) 150 Operating temperature range (C) -40 to 85
Output options Adjustable Output, Fixed Output Iout (Max) (A) 0.25 Vin (Max) (V) 10 Vin (Min) (V) 2.2 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) 28 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 150 Rating Catalog Load capacitance (Min) (µF) 0 Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 46 Dropout voltage (Vdo) (Typ) (mV) 150 Operating temperature range (C) -40 to 85
SOIC (D) 8 19 mm² 3.91 x 4.9 SOT-223 (DCQ) 6 46 mm² 6.5 x 7.06 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • NEW DMOS TOPOLOGY:
       Ultra Low Dropout Voltage:
         150mV typ at 250mA
         Output capacitor not Required for Stability
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
       IGND = 600 µA at IOUT = 250mA
       Not Enabled: IGND = 0.01 µA
  • 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, SOT223-5, 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.

  • NEW DMOS TOPOLOGY:
       Ultra Low Dropout Voltage:
         150mV typ at 250mA
         Output capacitor not Required for Stability
  • FAST TRANSIENT RESPONSE
  • VERY LOW NOISE: 28 µVrms
  • HIGH ACCURACY: ±1.5% max
  • HIGH EFFICIENCY:
       IGND = 600 µA at IOUT = 250mA
       Not Enabled: IGND = 0.01 µA
  • 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, SOT223-5, 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.

The REG102 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 150mV 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 600µA (at IOUT = 250mA) 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 REG102 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).

The REG102 is well protected—internal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.

The REG102 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 150mV 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 600µA (at IOUT = 250mA) 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 REG102 has very low output noise (typically 28µVrms for VOUT = 3.3V with CNR = 0.01µF), making it ideal for use in portable communications equipment. On-chip trimming results in high output voltage accuracy. Accuracy is maintained over temperature, line, and load variations. Key parameters are tested over the specified temperature range (–40°C to +85°C).

The REG102 is well protected—internal circuitry provides a current limit that protects the load from damage; furthermore, thermal protection circuitry keeps the chip from being damaged by excessive temperature. The REG102 is available in the SOT23-5, SOT223-5, and SO-8 packages.

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Technical documentation

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Type Title Date
* Data sheet DMOS 250mA Low-Dropout Regulator datasheet (Rev. F) 08 Sep 2005
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note LDO Noise Demystified (Rev. B) 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) 09 Aug 2017
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
User guide DEM-SOT223LDO Demonstration Fixture 15 Oct 2003
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-SOT223LDO — DEM-SOT223LDO Compatible with Most Positive Output LDOs in SOT223 (DCQ) Package

The Texas Instruments DEM-SOT223LDO demonstration module (DEM) helps designers evaluate the operation and performance of Texas Instruments low-dropout regulators (LDOs).  This module is compatible with most positive output LDOs offered in the SOT223 (DCQ) 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.

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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 (...)

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Limit: 5
Package Pins Download
SOIC (D) 8 View options
SOT-223 (DCQ) 6 View options
SOT-23 (DBV) 5 View options

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