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 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 to efficiently transfer heat to the circuit
board.
