DIA7865

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.

Product attributes

• 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)