Automotive 150-mA, 40-V, low-dropout (LDO) linear regulator with enable and fast transient response | DRB | 8 | -40 to 125

The TPS7B84-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 dump) that are anticipated in automotive systems. With only

an 18µA quiescent current, 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 TPS7B84-Q1 has both fixed and

adjustable output types. The wide output voltage range allows the device to generate

the bias voltage for silicon carbide (SiC) gate drivers and microphones as well as

power MCUs and processors.

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 ±0.75% over line,

load, and temperature.

The device is available in both a

SOT223 package and a small VSON package with wettable flanks that facilitates a

compact printed circuit board (PCB) design. The low thermal resistance enables

sustained operation despite significant dissipation across the device.