 Features

 AEC-Q100 qualified:

− Device ambient temperature:

− -40°C ≤ TA ≤ 125°C

− Device junction temperature:

− -40°C ≤ TJ ≤ 150°C

 Operating output voltage range:

– Fixed 1.2 V to 5 V output voltage

– Adjustable 1.2 V to 16 V output voltage

 Low quiescent current: 4 μA (Typ.)

 Shutdown current: 300 nA

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

up to 45 V transient

 Maximum output current: 300 mA

 ±2% output voltage accuracy

 Typical dropout voltage: 500 mV at 300 mA load

current for fixed 5 V output version

 Stable with low equivalent series resistance

(0.001 Ω to 5 Ω) ceramic output-stability

capacitor (1 μF to 200 μF)

 Applications

 Battery powered equipment

 Automotive head units

 Telematics control units

 Headlights

 Body control modules

 Description

The DIA7865 is a low-dropout linear regulator

designed to function with an input voltage range from

3 V to 40 V. With a minimum operation of 3 V, the

DIA7865 can function normally during cold-crank and

start and stop conditions. The DIA7865 provides an

ideal solution for powering microcontrollers (MCUs)

and CAN/LIN transceivers in standby systems for its

typical quiescent current at no load is only 4 μA.

In always-on systems, low quiescent current (IQ) is

important for power saving and prolonging battery

lifetime, especially in automotive battery-connected

applications, which must include ultra-low quiescent

current.

To match the needs of automotive applications’

power supply, a short-circuit and overcurrent

protection is included in the device. In addition, to

dissipate the heat, a thermally conductive package is

placed to ensure the device can function sustainably.