The TPS7B86-Q1 is a low-dropout linear regulator designed to connect to thebattery in automotive applications. The device has an input voltage range extending to 40 V, whichallows the device to withstand transients (such as load dumps) that are anticipated in automotivesystems. With only a 20-µA quiescent current at light loads, the device is an optimal solution forpowering always-on components such as microcontrollers (MCUs) and controller area network (CAN)transceivers in standby systems.
The device has a state-of-the-art transient response that allows the output to quicklyreact to changes in load or line (for example, during cold-crank conditions). Additionally, thedevice has a novel architecture that minimizes output overshoot when recovering from dropout.During normal operation, the device has a tight DC accuracy of ±1% over line, load, andtemperature.
The device is equipped with a power-good output to indicatewhen the output voltage is close to its final value. The power-good delay can be adjusted byexternal components, thus allowing the delay time to be configured for a specific system.
The device is available in thermally conductive packaging to allow the device toefficiently transfer heat to the circuit board.