 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 0.8 V to 5 V output voltage

− Adjustable 0.8 V to 16 V output voltage

 Two versions:

− Power-good output available:

− DIA7866BA

− Power-good output not available:

− DIA7866BN

 Low quiescent current: 6 μA typical at no load

 400 nA shutdown current

 Maximum output current: 300 mA

 ±2% output voltage accuracy over ambient

temperature range

 Ultra-low dropout voltage:

− 235 mV at 300 mA, VOUT = 5 V

 Stable with a low ESR output capacitor

 Applications

 Battery powered equipment

 Automotive head units

 Telematics control units

 Body control modules

 Description

The DIA7866 is a low-dropout linear regulator

designed for battery-direct-connection automotive

applications. The device operations with a wide input

voltage ranging from 3 V to 40 V that makes DIA7866

a good fit for severe operating conditions including

load dump, cold cranking and start-stop.

The low quiescent current and low dropout voltage

allow operations at extremely low-power levels. With

only 6 μA ultra-low quiescent current at no load, the

DIA7866 is quite suitable for microcontrollers and

CAN/LIN transceivers power supply in standby

systems.

The regulator output current is limited internally, and

the device is protected against short-circuit, over-load,

and over-temperature conditions.

The DIA7866 is available in EP-SOIC8 package. It is

specified over ambient temperature range of -40°C to

125°C, which meets the requirements of automotive

applications.