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TPS7B86-Q1

ACTIVE

Automotive 500-mA, 40-V, ultra-low-IQ, low-dropout (LDO) linear regulator with power good

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Data sheet

TPS7B86-Q1

ACTIVE
Data sheet Order now

Product details

Output options Adjustable Output, Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 18 Vout (min) (V) 1.2 Fixed output options (V) 3.3, 5 Noise (µVrms) 280 Iq (typ) (mA) 0.02 Thermal resistance θJA (°C/W) 29.7, 41.8 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 0.85 PSRR at 100 KHz (dB) 65 Dropout voltage (Vdo) (typ) (mV) 370 Operating temperature range (°C) -40 to 150
Output options Adjustable Output, Fixed Output Iout (max) (A) 0.5 Vin (max) (V) 40 Vin (min) (V) 3 Vout (max) (V) 18 Vout (min) (V) 1.2 Fixed output options (V) 3.3, 5 Noise (µVrms) 280 Iq (typ) (mA) 0.02 Thermal resistance θJA (°C/W) 29.7, 41.8 TI functional safety category Functional Safety-Capable Rating Automotive Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Features Enable, Power good Accuracy (%) 0.85 PSRR at 100 KHz (dB) 65 Dropout voltage (Vdo) (typ) (mV) 370 Operating temperature range (°C) -40 to 150
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 TO-252 (KVU) 5 66.726 mm² 6.6 x 10.11
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3 V to 40 V (42 V max)
  • Output voltage range:
    • Adjustable output: 1.2 V to 18 V
    • Fixed 3.3-V and 5-V output
  • Maximum output current: 500 mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475 mV (max) at 450 mA (VOUT ≥ 3.3 V)
  • Low quiescent current:
    • 17 µA (typ) at light loads
    • 5 µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1-V/µs VIN slew rate)
  • Power-good with programmable delay period
  • Stable with a 2.2-µF or larger capacitor
  • Functional Safety-Capable
  • Package options:
    • 5-pin TO-252 package: 29.7°C/W RθJA
    • 8-pin HSOIC-8 package with thermal pad: 41.8°C/W RθJA
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
    • Junction temperature: –40°C to +150°C, TJ
  • Input voltage range: 3 V to 40 V (42 V max)
  • Output voltage range:
    • Adjustable output: 1.2 V to 18 V
    • Fixed 3.3-V and 5-V output
  • Maximum output current: 500 mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475 mV (max) at 450 mA (VOUT ≥ 3.3 V)
  • Low quiescent current:
    • 17 µA (typ) at light loads
    • 5 µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1-V/µs VIN slew rate)
  • Power-good with programmable delay period
  • Stable with a 2.2-µF or larger capacitor
  • Functional Safety-Capable
  • Package options:
    • 5-pin TO-252 package: 29.7°C/W RθJA
    • 8-pin HSOIC-8 package with thermal pad: 41.8°C/W RθJA

The TPS7B86-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 17-µA quiescent current at light loads, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.85% over line, load, and temperature.

The power-good delay can be adjusted by external components, allowing the delay time to be configured to fit application-specific systems.

The device is available in thermally conductive packaging to allow the device components to efficiently transfer heat to the circuit board.

The TPS7B86-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 17-µA quiescent current at light loads, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.

The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.85% over line, load, and temperature.

The power-good delay can be adjusted by external components, allowing the delay time to be configured to fit application-specific systems.

The device is available in thermally conductive packaging to allow the device components to efficiently transfer heat to the circuit board.
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Technical documentation

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* Data sheet TPS7B86-Q1 Automotive, 500-mA, 40-V, Adjustable, Low-Dropout Regulator With Power-Good datasheet (Rev. C) PDF | HTML 26 Aug 2022
Functional safety information TPS7B86-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 23 Sep 2022

Design & development

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Evaluation board

MLTLDO2EVM-037 — Universal LDO linear voltage regulator evaluation module for DCY, DDA and KVU packages

The MLTLDO2EVM-037 multipackage low-dropout (LDO) evaluation module (EVM) allows design engineers to evaluate the operation and performance of several common packages of linear regulators for possible use in their own circuit application. This EVM configuration contains a DDA, 3-pin and 5-pin KVU, (...)

User guide: PDF
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Simulation model

TPS7B86-Q1 PSpice Transient Model

SBVM966.ZIP (6 KB) - PSpice Model
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Package Pins Download
HSOIC (DDA) 8 View options
TO-252 (KVU) 5 View options
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