Home Energiemanagement Linear- und Low-Dropout-Regler (LDO)
Home
Energiemanagement
Linear- und Low-Dropout-Regler (LDO)

TPS7B87-Q1

AKTIV

500-mA-, 40-V-LDO-Linearregler (Low Dropout) für den Automobilbereich mit Power-Good

Jetzt bestellen
Datenblatt

TPS7B87-Q1

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.5 Output options Fixed Output Vout (max) (V) 5 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 252 PSRR at 100 KHz (dB) 70 Iq (typ) (mA) 0.017 Features Power good Thermal resistance θJA (°C/W) 29.7 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 360 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 40 Vin (min) (V) 3 Iout (max) (A) 0.5 Output options Fixed Output Vout (max) (V) 5 Vout (min) (V) 3.3 Fixed output options (V) 3.3, 5 Noise (µVrms) 252 PSRR at 100 KHz (dB) 70 Iq (typ) (mA) 0.017 Features Power good Thermal resistance θJA (°C/W) 29.7 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 2.2 Regulated outputs (#) 1 Accuracy (%) 0.85 Dropout voltage (Vdo) (typ) (mV) 360 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: 3V to 40V (42V max)
  • Output voltage range: 3.3V and 5V (fixed)
  • Maximum output current: 500mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475mV (max) at 450mA
  • Low quiescent current:
    • 17µA (typ) at light loads
  • 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
    • Documentation available to aid functional safety system design
  • 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: 3.3V and 5V (fixed)
  • Maximum output current: 500mA
  • Output voltage accuracy: ±0.85% (max)
  • Low dropout voltage:
    • 475mV (max) at 450mA
  • Low quiescent current:
    • 17µA (typ) at light loads
  • 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
    • Documentation available to aid functional safety system design
  • 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 TPS7B87-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 designed 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 to efficiently transfer heat to the circuit board.

The TPS7B87-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 designed 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 to efficiently transfer heat to the circuit board.
filter Andere Linear- und Low-Dropout-Regler (LDO) suchen
Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

open-in-new Alternativen vergleichen
Ähnliche Funktionalität wie verglichener Baustein
TPS7B86-Q1 AKTIV 500-mA-, 40-V-LDO-Linearregler (Low Dropout) für den Automobilbereich mit extrem niedrigem IQ und Po Similar performance with an enable pin
TPS7B88-Q1 AKTIV Linearer Low-Dropout-Regler (LDO) mit 500 mA, 40 V, für den Automobilbereich mit schnellem Einschwin Similar performance in a 3-pin DPAK package

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 6
Top-Dokumentation Typ Titel Format-Optionen Datum
* Data sheet TPS7B87-Q1 Automotive, 500mA, 40V, Low-Dropout Regulator With Power-Good datasheet (Rev. B) PDF | HTML 05 Nov 2025
Application note An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) PDF | HTML 23 Sep 2025
Functional safety information TPS7B87-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 01 Jul 2025
Application note A Topical Index of TI LDO Application Notes (Rev. F) 27 Jun 2019
E-book LDO Basics (Rev. A) 08 Apr 2019
Technical article LDO basics: dropout PDF | HTML 16 Mär 2017

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

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 (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

TPS7B87-Q1 PSpice Transient Model (3.3-V Output)

SBVM971.ZIP (12 KB) - PSpice Model
Herunterladen
Simulationsmodell

TPS7B87-Q1 PSpice Transient Model (5-V Output)

SBVM972.ZIP (12 KB) - PSpice Model
Herunterladen
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
HSOIC (DDA) 8 Ultra Librarian
TO-252 (KVU) 5 Ultra Librarian
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Empfohlene Produkte können Parameter, Evaluierungsmodule oder Referenzdesigns zu diesem TI-Produkt beinhalten.

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Alle Forenthemen auf Englisch anzeigen

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos