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Product details

Parameters

Output options Fixed Output Iout (Max) (A) 0.3 Vin (Max) (V) 40 Vin (Min) (V) 3 Vout (Max) (V) 5 Vout (Min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (uVrms) 450 Iq (Typ) (mA) 0.003 Thermal resistance θJA (°C/W) 59 TI functional safety category Functional Safety-Capable Load capacitance (Min) (µF) 1 Rating Automotive Regulated outputs (#) 1 Features Enable Accuracy (%) 2 PSRR @ 100 KHz (dB) 25 Dropout voltage (Vdo) (Typ) (mV) 400 Operating temperature range (C) -40 to 150 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

HVSSOP (DGN) 8 9 mm² 3 x 3 TO-252 (KVU) 5 67 mm² 6.6 x 10.11 WSON (DRV) 6 4 mm² 2 x 2 open-in-new Find other Linear regulators (LDO)

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • Extended junction temperature range: –40°C ≤ TJ ≤ 150°C
  • Low quiescent current IQ:
    • 300-nA shutdown IQ
    • 2.7 µA typical at light loads
    • 5 µA maximum at light loads
  • 3-V to 40-V wide VIN input voltage range with up to 45-V transient
  • Maximum output current: 300 mA
  • 2% output-voltage accuracy
  • Maximum dropout voltage: 700 mV at 200-mA load current for fixed 5-V output version
  • Stable with low-ESR (0.001-Ω to 5-Ω) ceramic output-stability capacitor (1 µF to 200 µF)
  • Fixed 2.5-V, 3.3-V, and 5-V output voltage
  • Thermal resistance (RθJA): 63.9°C/W
  • Packages:
    • 8-pin HVSSOP, RθJA = 63.9°C/W
    • 6-pin WSON, RθJA = 72.8°C/W
    • 5-pin TO-252, RθJA = 38.8°C/W

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Description

In automotive battery-connected applications, low quiescent current (IQ) is important to save power and extend battery lifetime. It is especially necessary to have ultralow IQ for always-on systems.

The TPS7B82-Q1 is a low-dropout linear regulator designed to operate with a wide input-voltage range from 3 V to 40 V (45-V load dump protection). Operation down to 3 V allows the TPS7B82-Q1 to continue operating during cold-crank and start and stop conditions. With only 2.7-µA typical quiescent current at light load, this device is an optimal solution 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 well suited as a power supply for various automotive applications.

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Technical documentation

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Type Title Date
* Datasheet TPS7B82-Q1 300-mA High-Voltage Ultralow-IQ Low-Dropout Regulator datasheet (Rev. G) Jul. 01, 2020
Application notes Determining Mission Profile Compatibility for LDOs Jul. 27, 2020
Application notes TPS7B82-Q1 Functional Safety FIT Rate and Failure Mode Distribution Dec. 17, 2019
User guides TPS7B82EVM-024 Evaluation Module User's Guide Mar. 15, 2019
Application notes An empirical analysis of the impact of board layout on LDO thermal performance Feb. 22, 2019
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
User guides TPS7B8250EVM Evaluation Module User's Guide Sep. 22, 2017
Technical articles LDO basics: noise – part 1 Jun. 14, 2017

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description

The TPS7B8250EVM evaluation module (EVM) lets you evaluate the operation and performance of the TPS7B82-Q1 device. The TPS7B82-Q1 device is a low-dropout (LDO) linear regulator designed for up to 40-V VIN with a 300-mA (maximum) output current. With only 2.7-μA typical quiescent current at (...)

Features
  • Wide input voltage (VIN) range from 3 V to 40 V, with up to 45-V transient
  • Maximum output current of 300 mA
  • Low quiescent current
EVALUATION BOARDS Download
document-generic User guide
29
Description

The TPS7B82EVM-024 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7B82-Q1, which is an automotive 300-mA high-voltage ultra-low-IQ low-dropout (LDO) linear regulator.

TPS7B82EVM-024 is configured to be a reference design for (...)

Features
  • Supports input voltages from 3 V to 40 V
  • Low IQ: 5 µA (typ)
  • Maximum dropout voltage: 525 mV at 150 mA
  • Device operating junction temperature range: -40ºC to 150ºC
  • Integrated fault protections

Design tools & simulation

SIMULATION MODELS Download
SBVM946.ZIP (45 KB) - IBIS Model
SIMULATION MODELS Download
SLVMC70.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SLVMC71.ZIP (58 KB) - PSpice Model
SIMULATION MODELS Download
SLVMCR0.ZIP (2 KB) - PSpice Model
SIMULATION MODELS Download
SLVMCR1.ZIP (60 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
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TIDA-020030 — This reference design is an IGBT or SiC isolated gate driver power stage driving a IGBT module with advanced protection features. The design consists of a single phase power stage from a traction inverter supporting high level of safety features. The IGBT module has integrated thermal diode for (...)
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Automotive load short-circuit reliability and accurate current sensing reference design
TIDA-00971 — This reference design addresses the design challenges of providing power to the two actuators in a variable displacement A/C compressor. In designing circuits for these two loads, design engineers not only have the challenge of managing different current levels but also have to sense the current (...)
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REFERENCE DESIGNS Download
Two output flyback power supply reference design for EV motor/generator inverter applications
PMP22170 — This flyback converter reference design supplies a non-isolated 5-V/0.25-A regulated output and an isolated 10-V/1.5-A unregulated output voltage. It uses primary-side regulation to reduce component count and operates over a wide automotive input voltage range of 5 V to 40 V. 
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Automotive Bluetooth® Low Energy car access satellite node reference design
TIDA-01632 — This reference design is intended for Passive Entry Passive Start (PEPS) car access systems that utilize Bluetooth® Low Energy (BLE) technology to determine the location of a key fob. The design exhibits how a vehicle BLE satellite node can be implemented to calculate the angle of arrival (AoA (...)
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Automotive SPD-SmartGlass™ driver reference design
TIDA-020013 — This reference design details how to drive various forms of electronically dimmable glass, including SPD-SmartGlass™ and APD Glass from a car battery. This illustrates how to make a DC/AC inverter using the LM5155-Q1 boost converter with a charge pump, two UCC27712-Q1 half bridge drivers, and (...)
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Automotive pixelated dome light reference design for interior lighting
TIDA-020012 — This reference design details a solution to drive and control 30 LEDs individually for automotive interior dome light applications. The high pixel count can be used to create different light zones or welcome light animations. The design also implements LED multiplexing functionality to control up to (...)
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HEV/EV traction inverter power stage with 3 types of IGBT/SiC bias-supply solutions reference design
TIDA-020014 — This reference design presents a traction inverter single-phase power stage with three 12-V car battery inputs, 4.2-W bias supply solutions for hybrid electric vehicle and electric vehicle (HEV/EV) systems. All bias-supply solutions accept a wide input range of 4.5 V to 42 V DC from a 12-V car (...)
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REFERENCE DESIGNS Download
Automotive power seat reference design
TIDA-020008 — This reference design provides the drive and control circuits for motor-driven applications such as automotive power seats, using both bi-directional and unidirectional motor drives. It demonstrates how to drive brushed DC motors with a small board footprint, a high degree of robustness and full (...)
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REFERENCE DESIGNS Download
Automotive Power Trunk Lift Motor Drive Reference Design
TIDA-060009 This design describes how to drive an automotive trunk lift or rear gate lift.

In this design, a brushed BD lift motor and electromagnetic clutch drive mechanisms for a typical gear driven lift. This design includes a warning beeper, LED indicator, and directional control that uses an automotive (...)
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CAD/CAE symbols

Package Pins Download
HVSSOP (DGN) 8 View options
TO-252 (KVU) 5 View options
WSON (DRV) 6 View options

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