Product details

Output options Adjustable Output Iout (Max) (A) 1 Vin (Max) (V) 20 Vin (Min) (V) 2.2 Vout (Max) (V) 20 Vout (Min) (V) 1.2 Noise (uVrms) 45 Iq (Typ) (mA) 1 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (Min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse current protection, Reverse voltage protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 45 Dropout voltage (Vdo) (Typ) (mV) 300 Operating temperature range (C) -40 to 125
Output options Adjustable Output Iout (Max) (A) 1 Vin (Max) (V) 20 Vin (Min) (V) 2.2 Vout (Max) (V) 20 Vout (Min) (V) 1.2 Noise (uVrms) 45 Iq (Typ) (mA) 1 Thermal resistance θJA (°C/W) 51 Rating Catalog Load capacitance (Min) (µF) 10 Regulated outputs (#) 1 Features Enable, Reverse current protection, Reverse voltage protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 45 Dropout voltage (Vdo) (Typ) (mV) 300 Operating temperature range (C) -40 to 125
SOT-223 (DCQ) 6 23 mm² 6.5 x 3.5
  • Optimized for Fast Transient Response
  • Output Current: 1.0 A
  • Dropout Voltage: 300 mV
  • Low Noise: 45 µVRMS (10 Hz to 100 kHz)
  • 1-mA Quiescent Current
  • No Protection Diodes Needed
  • Controlled Quiescent Current in Dropout
  • Adjustable Output Voltage: 1.21 to 20 V
  • Less Than 1-µA Quiescent Current in Shutdown
  • Stable With 10-µF Output Capacitor
  • Stable With Ceramic Capacitors
  • Reverse-Battery Protection
  • No Reverse Current
  • Thermal Limiting
  • Optimized for Fast Transient Response
  • Output Current: 1.0 A
  • Dropout Voltage: 300 mV
  • Low Noise: 45 µVRMS (10 Hz to 100 kHz)
  • 1-mA Quiescent Current
  • No Protection Diodes Needed
  • Controlled Quiescent Current in Dropout
  • Adjustable Output Voltage: 1.21 to 20 V
  • Less Than 1-µA Quiescent Current in Shutdown
  • Stable With 10-µF Output Capacitor
  • Stable With Ceramic Capacitors
  • Reverse-Battery Protection
  • No Reverse Current
  • Thermal Limiting

The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1.0 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which makes them ideal for sensitive RF supply applications.

Output voltage range is from 1.21 to 20 V. The TPS73801 regulators are stable with output capacitors as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available as an adjustable device with a 1.21-V reference voltage. The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.

The TPS73801 is a low-dropout (LDO) regulator optimized for fast transient response. The device can supply 1.0 A of output current with a dropout voltage of 300 mV. Operating quiescent current is 1 mA, dropping to less than 1 µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as it does with many other regulators. In addition to fast transient response, the TPS73801 regulators have very low output noise, which makes them ideal for sensitive RF supply applications.

Output voltage range is from 1.21 to 20 V. The TPS73801 regulators are stable with output capacitors as low as 10 µF. Small ceramic capacitors can be used without the necessary addition of ESR, as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting, and reverse-current protection. The devices are available as an adjustable device with a 1.21-V reference voltage. The TPS73801 regulators are available in the 6-pin TO-223 (DCQ) packages.

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Technical documentation

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Type Title Date
* Data sheet TPS73801 1.0-A Low-Noise Fast-Transient-Response Low-Dropout Regulator datasheet (Rev. C) 30 Jul 2015
Application note Hybrid Battery Charger with Load Control for Telecom Equipments (Rev. A) 09 May 2018

Design & development

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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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SOT-223 (DCQ) 6 View options

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