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TPS736-Q1
  • TPS736-Q1
  • TPS736-Q1
  • TPS736-Q1

TPS736-Q1

ACTIVE

Automotive 400-mA, high-accuracy, low-dropout voltage regulator with reverse current protection

Texas Instruments TPS736-Q1 Product Info

1 April 2026 4

Parameters

Rating

Automotive

Vin (max) (V)

5.5

Vin (min) (V)

1.7

Iout (max) (A)

0.4

Output options

Adjustable Output, Fixed Output

Vout (max) (V)

5.4

Vout (min) (V)

1.2

Fixed output options (V)

1.8

Noise (µVrms)

30

PSRR at 100 KHz (dB)

16

Iq (typ) (mA)

0.4

Features

Enable, Reverse Current Protection

Thermal resistance θJA (°C/W)

222

Load capacitance (min) (µF)

0

Regulated outputs (#)

1

Accuracy (%)

1

Dropout voltage (Vdo) (typ) (mV)

75

Operating temperature range (°C)

-40 to 125

Package

SOT-223 (DCQ)-6-45.89 mm² 6.5 x 7.06

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Stable with no output capacitor or any value or type of capacitor
  • Input voltage range: 1.7V to 5.5V
  • Ultra-low dropout voltage: 75mV typical
  • Excellent load transient response—with or without optional output capacitor
  • New NMOS topology delivers low reverse leakage current
  • Low noise: 30µVRMS typical (10Hz to 100kHz)
  • Initial accuracy: 0.5%
  • 1% overall accuracy over line, load, and temperature
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified minimum and maximum current limit protection
  • Available in multiple output voltage versions:
    • Fixed outputs: 1.2V to 3.3V
    • Adjustable output: 1.2V to 5.5V
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B
  • Stable with no output capacitor or any value or type of capacitor
  • Input voltage range: 1.7V to 5.5V
  • Ultra-low dropout voltage: 75mV typical
  • Excellent load transient response—with or without optional output capacitor
  • New NMOS topology delivers low reverse leakage current
  • Low noise: 30µVRMS typical (10Hz to 100kHz)
  • Initial accuracy: 0.5%
  • 1% overall accuracy over line, load, and temperature
  • Less than 1µA maximum IQ in shutdown mode
  • Thermal shutdown and specified minimum and maximum current limit protection
  • Available in multiple output voltage versions:
    • Fixed outputs: 1.2V to 3.3V
    • Adjustable output: 1.2V to 5.5V

Description

The TPS736-Q1 low-dropout (LDO) linear voltage regulator uses an NMOS topology consisting of an NMOS pass transistor in a voltage-follower configuration. This topology is stable using output capacitors with low ESR, and even allows operation without a capacitor. This topology also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.

The TPS736-Q1 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 1µA and designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is ideal for powering VCOs. This device is protected by thermal shutdown and foldback current limit.

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