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TPS7B86-Q1

AKTIV

500-mA-, 40-V-LDO-Linearregler (Low Dropout) für den Automobilbereich mit extrem niedrigem IQ und Po

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Datenblatt

TPS7B86-Q1

AKTIV
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Produktdetails

Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.5 Output options Adjustable Output, Fixed Output Vout (max) (V) 18 Vout (min) (V) 1.2 Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.02 Features Enable, Power good Thermal resistance θJA (°C/W) 29.6, 29.7, 41.8 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 370 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.5 Output options Adjustable Output, Fixed Output Vout (max) (V) 18 Vout (min) (V) 1.2 Noise (µVrms) 280 PSRR at 100 KHz (dB) 65 Iq (typ) (mA) 0.02 Features Enable, Power good Thermal resistance θJA (°C/W) 29.6, 29.7, 41.8 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 370 Operating temperature range (°C) -40 to 150
TO-252 (KVU) 5 66.726 mm² (6.6 mm × 10.11 mm) HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm)
  • 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: 3V to 40V (42V max)
  • Output voltage range:
    • Adjustable output: 1.2V to 18V
    • Fixed 3.3V and 5V output
  • Maximum output current: 500mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475mV (max) at 450mA (VOUT ≥ 3.3V)
  • Low quiescent current:
    • 17µA (typ) at light loads
    • 5µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Power-good with programmable delay period
  • Stable with a 2.2µF 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: 3V to 40V (42V max)
  • Output voltage range:
    • Adjustable output: 1.2V to 18V
    • Fixed 3.3V and 5V output
  • Maximum output current: 500mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475mV (max) at 450mA (VOUT ≥ 3.3V)
  • Low quiescent current:
    • 17µA (typ) at light loads
    • 5µA (max) when disabled
  • Excellent line transient response:
    • ±2% VOUT deviation during cold-crank
    • ±2% VOUT deviation (1V/µs VIN slew rate)
  • Power-good with programmable delay period
  • Stable with a 2.2µF 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 40V, which allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 17µA quiescent current at light loads, the device is a convenient choice 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 40V, which allows the device to withstand transients (such as load dumps) that are anticipated in automotive systems. With only a 17µA quiescent current at light loads, the device is a convenient choice 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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TPS7B86-Q1 Automotive, 500mA, 40V, Adjustable, Low-Dropout Regulator With Power-Good datasheet (Rev. D) PDF | HTML 30.10.2025
Anwendungshinweis An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) PDF | HTML 23.09.2025
Informationen zur funktionalen Sicherheit TPS7B86-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 23.09.2022
Anwendungshinweis A Topical Index of TI LDO Application Notes (Rev. F) 27.06.2019
E-book LDO Basics (Rev. A) 08.04.2019
Technischer Artikel LDO basics: dropout PDF | HTML 16.03.2017

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Evaluierungsplatine

MLTLDO2EVM-037 — Universelles LDO-Linearspannungsregler-Evaluierungsmodul für DCY-, DDA- and KVU-Gehäuse

Mit dem Multipaket-Evaluierungsmodul (EVM) für niedrige Dropout-Werte (LDO) MLTLDO2EVM-037 können Entwicklungsingenieure den Betrieb und die Leistung mehrerer gängiger Linearreglerpakete für den möglichen Einsatz in ihrer eigenen Schaltungsanwendung evaluieren. Diese EVM-Konfiguration enthält einen (...)

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TPS7B86-Q1 PSpice Transient Model

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TO-252 (KVU) 5 Ultra Librarian
HSOIC (DDA) 8 Ultra Librarian
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