 Features

 AEC-Q100 qualified:

− Device ambient temperature:

-40°C ≤ TA ≤ 125°C

− Device junction temperature:

-40°C ≤ TJ ≤ 150°C

 3 V to 40 V wide input voltage range with up to

45 V transient

 Operating output voltage range:

− Fixed 1.2 V to 5 V output voltage

− Adjustable 1.2 V to 16 V output voltage

 Low power consumption:

− 4 μA typical at no load

− 450 nA shutdown current

 Maximum output current: 150 mA

 ±2% output voltage accuracy over ambient

temperature range

 Maximum dropout voltage: 210 mV at 150 mA

load current for fixed 5 V output version

 Stable with low equivalent series resistance

ceramic output-stability capacitor

 Applications

 Automotive head units

 Telematics control units

 Headlights

 Body control modules

 Battery management systems (BMS)

 Inverter and motor controls

 Description

The DIA7855 is a low-dropout linear regulator

designed to function with a wide input voltage range

from 3 V to 40 V. The 3 V minimum operation voltage

allows DIA7855 to function normally during

cold-crank and start-stop conditions.

With only 4 μA ultra-low quiescent current at no load,

the DIA7855 is quite suitable for microcontrollers and

CAN/LIN transceivers power supply in standby

systems.

The DIA7855 integrates short-circuit and overcurrent

protection. -40°C to 125°C wide operating

temperature range enable the DIA7855 to be used in

the harsh automotive environment.

The device uses thermally conductive package to

enable sustained operation despite significant

dissipation across the device. Additionally, the device

integrates thermal shutdown, it designed as a power

for various automotive applications.