Automotive 500-mA, 40-V, low dropout (LDO) regulator with power good | DDA | 8 | -40 to 150

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.