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TPS7B81-Q1

TPS7B81-Q1 Series

Automotive 150-mA, off-battery (40-V), ultra-low-IQ, low-dropout voltage regulator with enable

Manufacturer: Texas Instruments

Catalog

Automotive 150-mA, off-battery (40-V), ultra-low-IQ, low-dropout voltage regulator with enable

Key Features

AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to 125°C, TADevice junction temperature range: –40°C to 150°C3-V to 40-V wide VINinput voltage range with up to 45-V transientMaximum output current: 150 mALow quiescent current IQ:300 nA typical when EN = low (shutdown mode)2.7 µA typical at light loads4.5 µA maximum at light loads1.5% output-voltage accuracy over line, load and temperatureMaximum dropout voltage: 540 mV at 150-mA load current for fixed 5-V output versionStable with low-ESR (0.001-Ω to 5-Ω) ceramic output-stability capacitor (1 µF to 200 µF)Fixed 5-V, 3.3-V and 2.5-V output voltageIntegrated fault protection:Thermal shutdownShort-circuit and overcurrent protectionPackages:DGN (8-pin HVSSOP), RθJA= 63.9°C/WDRV (6-pin WSON), RθJA= 72.8°C/WKVU (5-pin TO-252), RθJA= 38.8°C/WAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to 125°C, TADevice junction temperature range: –40°C to 150°C3-V to 40-V wide VINinput voltage range with up to 45-V transientMaximum output current: 150 mALow quiescent current IQ:300 nA typical when EN = low (shutdown mode)2.7 µA typical at light loads4.5 µA maximum at light loads1.5% output-voltage accuracy over line, load and temperatureMaximum dropout voltage: 540 mV at 150-mA load current for fixed 5-V output versionStable with low-ESR (0.001-Ω to 5-Ω) ceramic output-stability capacitor (1 µF to 200 µF)Fixed 5-V, 3.3-V and 2.5-V output voltageIntegrated fault protection:Thermal shutdownShort-circuit and overcurrent protectionPackages:DGN (8-pin HVSSOP), RθJA= 63.9°C/WDRV (6-pin WSON), RθJA= 72.8°C/WKVU (5-pin TO-252), RθJA= 38.8°C/W

Description

AI
In automotive battery-connected applications, low quiescent current (IQ) is important to conserve energy and to extend battery lifetime. Always-on systems must have ultralow IQover an extended temperature range to enable sustained operation when the vehicle ignition is off. The TPS7B81-Q1 is a low-dropout (LDO) linear regulator designed for up to 40-V VINapplications. With only a 2.7-µA typical quiescent current at light load, the device is an optimal solution for powering microcontrollers and controller area network and local interconnect network (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 is available in several packages of varying size and thermal conductivity. The small WSON package facilitates the most compact PCB design and the TO-252 package enables sustained operation despite significant dissipation across the device. These features make the device well suited as a power supply for various battery-connected automotive applications. In automotive battery-connected applications, low quiescent current (IQ) is important to conserve energy and to extend battery lifetime. Always-on systems must have ultralow IQover an extended temperature range to enable sustained operation when the vehicle ignition is off. The TPS7B81-Q1 is a low-dropout (LDO) linear regulator designed for up to 40-V VINapplications. With only a 2.7-µA typical quiescent current at light load, the device is an optimal solution for powering microcontrollers and controller area network and local interconnect network (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 is available in several packages of varying size and thermal conductivity. The small WSON package facilitates the most compact PCB design and the TO-252 package enables sustained operation despite significant dissipation across the device. These features make the device well suited as a power supply for various battery-connected automotive applications.