Product
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TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1
  • TPS7B82-Q1

TPS7B82-Q1

ACTIVE

Automotive 300-mA, off-battery (40-V), ultra-low-IQ LDO with enable in AEC-Q100 Grade-0 and Grade-1

Texas Instruments TPS7B82-Q1 Product Info

1 April 2026 6

Parameters

Rating

Automotive

Vin (max) (V)

40

Vin (min) (V)

3

Iout (max) (A)

0.3

Output options

Fixed Output

Vout (max) (V)

5

Vout (min) (V)

3.3

Fixed output options (V)

2.5, 3.3, 5

Noise (µVrms)

450

PSRR at 100 KHz (dB)

25

Iq (typ) (mA)

0.003

Features

AEC-Q100 Grade 0, Enable

Thermal resistance θJA (°C/W)

31.1, 52, 63.9, 72.8

TI functional safety category

Functional Safety-Capable

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Accuracy (%)

2

Dropout voltage (Vdo) (typ) (mV)

400

Operating temperature range (°C)

-40 to 165

Package

HTSSOP (PWP)-14-32 mm² 5 x 6.4

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
    • Temperature grade 0: –40°C ≤ TA ≤ 150°C
  • Extended junction temperature range:
    • Grade 1: –40°C ≤ TJ ≤ 150°C
    • Grade 0: –40°C ≤ TJ ≤ 165°C
  • Low quiescent current IQ:
    • 300nA shutdown IQ
    • 2.7µA typical at light loads
    • 5µA maximum at light loads
  • 3V to 40V wide VIN input voltage range with up to 45V transient
  • Maximum output current: 300mA
  • 2% output-voltage accuracy
  • Maximum dropout voltage: 700mV at 200mA load current for fixed 5V output version
  • Stable with low-ESR (0.001Ω to 5Ω) ceramic output-stability capacitor (1µF to 200µF)
  • Fixed 2.5V, 3.3V, and 5V output voltage
  • Packages:
    • 8-pin HVSSOP, RθJA = 63.9°C/W
    • 6-pin WSON, RθJA = 72.8°C/W
    • 6-pin WSON wettable flank, RθJA = 72.8°C/W
    • 5-pin TO-252, RθJA = 31.1°C/W
    • 14-pin HTSSOP, RθJA = 52.0°C/W
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
    • Temperature grade 0: –40°C ≤ TA ≤ 150°C
  • Extended junction temperature range:
    • Grade 1: –40°C ≤ TJ ≤ 150°C
    • Grade 0: –40°C ≤ TJ ≤ 165°C
  • Low quiescent current IQ:
    • 300nA shutdown IQ
    • 2.7µA typical at light loads
    • 5µA maximum at light loads
  • 3V to 40V wide VIN input voltage range with up to 45V transient
  • Maximum output current: 300mA
  • 2% output-voltage accuracy
  • Maximum dropout voltage: 700mV at 200mA load current for fixed 5V output version
  • Stable with low-ESR (0.001Ω to 5Ω) ceramic output-stability capacitor (1µF to 200µF)
  • Fixed 2.5V, 3.3V, and 5V output voltage
  • Packages:
    • 8-pin HVSSOP, RθJA = 63.9°C/W
    • 6-pin WSON, RθJA = 72.8°C/W
    • 6-pin WSON wettable flank, RθJA = 72.8°C/W
    • 5-pin TO-252, RθJA = 31.1°C/W
    • 14-pin HTSSOP, RθJA = 52.0°C/W

Description

In automotive battery-connected applications, low quiescent current (IQ) is important to save power and extend battery lifetime. Ultra-low IQ must be included for always-on systems.

The TPS7B82-Q1 is a low-dropout linear regulator designed to operate with a wide input-voltage range from 3V to 40V (45V load dump protection). Operation down to 3V allows the TPS7B82-Q1 to continue operating during cold-crank and start and stop conditions. With only 2.7µA typical quiescent current at light load, this device is an optimum design for powering microcontrollers (MCUs) and CAN/LIN transceivers in standby systems.

The device features integrated short-circuit and overcurrent protection. This device operates in ambient temperatures from –40°C to +125°C and with junction temperatures from –40°C to +150°C. Additionally, this device uses a thermally conductive package to enable sustained operation despite significant dissipation across the device. Because of these features, the device is designed as a power supply for various automotive applications.

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