Diodes Incorporated AP7582Q/EQ 300mA Wide Input Voltage LDO Regulators

Diodes Inc. AP7582Q/EQ 300mA Wide Input Voltage LDO Regulators are designed for use with batteries in automotive applications. The devices have an input voltage range extending to 40V and feature a 6µA quiescent current at light load; therefore, the AP7582Q/EQ are ideal for always-on components such as microcontrollers (MCUs) and Controller Area Network (CAN) transceivers.

The Diodes Inc. AP7582Q/EQ features overcurrent, overtemperature, and short-circuit protection. The devices provide fixed-output-voltage versions at 3.3V and 5V and are available in MSOP-8EP, WDFN2020-6 (SWP) (Type A1), TO252-4 (Type C), and SO-8EP packages. AP7582EQ has a Power-Good indicator, and the power-good delay can be adjusted with an external capacitor in the SO-8EP package option, enabling programmable delay time for specific applications.

Features

  • 3V to 42V wide input voltage range
  • 300mA maximum output current
  • Low dropout voltage of VDROP = 450mV at IOUT = 300mA (typ.)
  • 6μA (typ.) low quiescent current
  • High output voltage accuracy of ±1% (at room temperature), ±2% (at full temperature)
  • Compatible with low ESR ceramic capacitor
  • Excellent line/load regulation
  • Thermal shutdown function
  • Short current protection function
  • AP7582EQ with Power-Good (PG) with programmable delay time
  • Output current limit
  • Lead-free and RoHS-compliant
  • Halogen, antimony-free “Green” device
  • AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities

Applications

  • Powering MCUs and CAN/LIN transceivers
  • Automotive head units
  • EV and HEV battery-management systems
  • Body control modules
  • Transmission control units (TCU)

Functional Block Diagram

Block Diagram - Diodes Incorporated AP7582Q/EQ 300mA Wide Input Voltage LDO Regulators
Published: 2026-07-01 | Updated: 2026-07-09