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Linear & low-dropout (LDO) regulators

TPS74701-Q1

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Automotive 500-mA, low-VIN (0.8-V), adjustable ultra-low-dropout voltage regulator with power good

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Data sheet

TPS74701-Q1

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Rating Automotive Noise (µVrms) 20 PSRR at 100 KHz (dB) 27 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 50 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 50 Operating temperature range (°C) -40 to 150
Output options Adjustable Output Iout (max) (A) 0.5 Vin (max) (V) 5.5 Vin (min) (V) 0.8 Vout (max) (V) 3.6 Vout (min) (V) 0.8 Rating Automotive Noise (µVrms) 20 PSRR at 100 KHz (dB) 27 Iq (typ) (mA) 1 Thermal resistance θJA (°C/W) 50 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good, Soft start Accuracy (%) 2 Dropout voltage (Vdo) (typ) (mV) 50 Operating temperature range (°C) -40 to 150
VSON (DRC) 10 9 mm² 3 x 3
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • V OUT range: 0.8 V to 3.6 V
  • V IN range: 0.8 V to 5.5 V
  • V BIAS range: 2.7 V to 5.5 V
  • Low dropout: 20 mV typical at 500 mA, V BIAS = 5 V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 0.95% accuracy over line, load, and temperature
  • Programmable soft start provides linear voltage start-up
  • V BIAS permits low V IN operation with good transient response
  • Stable with any output capacitor ≥ 2.2 µF
  • Available in a small 3-mm × 3-mm 10-pin VSON package
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
  • V OUT range: 0.8 V to 3.6 V
  • V IN range: 0.8 V to 5.5 V
  • V BIAS range: 2.7 V to 5.5 V
  • Low dropout: 20 mV typical at 500 mA, V BIAS = 5 V
  • Power-good (PG) output allows supply monitoring or provides a sequencing signal for other supplies
  • 0.95% accuracy over line, load, and temperature
  • Programmable soft start provides linear voltage start-up
  • V BIAS permits low V IN operation with good transient response
  • Stable with any output capacitor ≥ 2.2 µF
  • Available in a small 3-mm × 3-mm 10-pin VSON package

The TPS74701-Q1 low-dropout (LDO) linear regulator provides an easy-to-use, robust power management solution for a wide variety of applications. The user-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current and the monotonic start-up is designed for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators, allowing a solution to be configured that meets the sequencing requirements for a wide range of applications with special start-up requirements.

A precision reference and error amplifier deliver 0.95% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2 µF, and is fully specified per AEC-Q100.

The TPS74701-Q1 low-dropout (LDO) linear regulator provides an easy-to-use, robust power management solution for a wide variety of applications. The user-programmable soft-start minimizes stress on the input power source by reducing capacitive inrush current and the monotonic start-up is designed for powering many different types of processors and ASICs. The enable input and power-good output allow easy sequencing with external regulators, allowing a solution to be configured that meets the sequencing requirements for a wide range of applications with special start-up requirements.

A precision reference and error amplifier deliver 0.95% accuracy over load, line, temperature, and process. The device is stable with any type of capacitor greater than or equal to 2.2 µF, and is fully specified per AEC-Q100.
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Technical documentation

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Type Title Date
* Data sheet TPS74701-Q1 Automotive, 500-mA, Low-Dropout Linear Regulator With Programmable Soft-Start datasheet (Rev. D) PDF | HTML 07 Dec 2023
Functional safety information TPS74701-Q1 Functional Safety FIT Rate and Failure Mode Distribution 17 Dec 2019

Design & development

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Evaluation board

TPS74701EVM-177 — TPS74701 Evaluation Module

The TPS74701EVM-177 facilitates evaluation of the TPS74701 low-dropout linear regulator IC.

User guide: PDF | HTML
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