Product details

Output options Fixed Output Iout (Max) (A) 1 Vin (Max) (V) 5.5 Vin (Min) (V) 2.2 Vout (Max) (V) 3.3 Vout (Min) (V) 1.9 Fixed output options (V) 1.9, 3.3 Noise (uVrms) 51 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 52 Rating Automotive Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback overcurrent protection, Reverse current protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 32 Dropout voltage (Vdo) (Typ) (mV) 130 Operating temperature range (C) -40 to 125
Output options Fixed Output Iout (Max) (A) 1 Vin (Max) (V) 5.5 Vin (Min) (V) 2.2 Vout (Max) (V) 3.3 Vout (Min) (V) 1.9 Fixed output options (V) 1.9, 3.3 Noise (uVrms) 51 Iq (Typ) (mA) 0.4 Thermal resistance θJA (°C/W) 52 Rating Automotive Load capacitance (Min) (µF) 1 Regulated outputs (#) 1 Features Enable, Foldback overcurrent protection, Reverse current protection Accuracy (%) 3 PSRR @ 100 KHz (dB) 32 Dropout voltage (Vdo) (Typ) (mV) 130 Operating temperature range (C) -40 to 125
VSON (DRB) 8 9 mm² 3.0 x 3.0
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4A
  • Stable with 1-µF or larger ceramic output capacitor
  • Input voltage range: 2.2 V to 5.5 V
  • Ultra-low dropout voltage: 130 mV (typical) at 1 A
  • Excellent load transient response, even with only 1-µF output capacitor
  • NMOS topology delivers low reverse leakage current
  • 1% initial accuracy
  • 3% overall accuracy over line, load, and temperature
  • Less than 20-nA (typical) quiescent current in shutdown mode
  • Thermal shutdown and current limit for fault protection
  • Available in multiple output voltage versions
  • Qualified for automotive applications
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4A
  • Stable with 1-µF or larger ceramic output capacitor
  • Input voltage range: 2.2 V to 5.5 V
  • Ultra-low dropout voltage: 130 mV (typical) at 1 A
  • Excellent load transient response, even with only 1-µF output capacitor
  • NMOS topology delivers low reverse leakage current
  • 1% initial accuracy
  • 3% overall accuracy over line, load, and temperature
  • Less than 20-nA (typical) quiescent current in shutdown mode
  • Thermal shutdown and current limit for fault protection
  • Available in multiple output voltage versions

The TPS737xx-Q1 family of linear low-dropout (LDO) voltage regulators uses an NMOS pass element in a voltage-follower configuration. This topology is relatively insensitive to output capacitor value and ESR, allowing a wide variety of load configurations. Load transient response is excellent, even with a small 1-µF ceramic output capacitor. The NMOS topology also allows very low dropout.

The TPS737xx-Q1 family uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 20 nA and ideal for portable applications. These devices are protected by thermal shutdown and foldback current limit.






The TPS737xx-Q1 family of linear low-dropout (LDO) voltage regulators uses an NMOS pass element in a voltage-follower configuration. This topology is relatively insensitive to output capacitor value and ESR, allowing a wide variety of load configurations. Load transient response is excellent, even with a small 1-µF ceramic output capacitor. The NMOS topology also allows very low dropout.

The TPS737xx-Q1 family uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is under 20 nA and ideal for portable applications. These devices are protected by thermal shutdown and foldback current limit.






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Technical documentation

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Type Title Date
* Data sheet TPS737-Q1 1-A Low-Dropout Regulator With Reverse Current Protection datasheet (Rev. B) 27 Sep 2019
Application note LDO Noise Demystified (Rev. B) 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) 09 Aug 2017
EVM User's guide Universal Low-Dropout (LDO) Linear Voltage Regulator EVM User's Guide 12 Oct 2016

Design & development

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

Simulation model

TPS73733 PSpice Transient Model

SBVM291.ZIP (22 KB) - PSpice Model
Simulation model

TPS73719 PSpice Transient Model

SBVM305.ZIP (22 KB) - PSpice Model
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