AP7583Q-FDZW-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AP7583Q-FDZW-7 is a fixed-output 5V ultra-low dropout regulator from Diodes Incorporated, designed for automotive battery-powered applications. It delivers a maximum output current of 300mA with an input voltage range spanning 3V to 42V. The device features a typical quiescent current of 2.5µA and maintains high output-voltage accuracy within ±1.5%. Packaged in a W-DFN2020-6 (SWP) Type A1 format, it includes essential protection mechanisms such as thermal shutdown, short-circuit protection, and output current limiting.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low quiescent current consumption suitable for always-on components
• Wide input voltage range accommodating automotive load dump conditions
• Integrated power-good indicator for supply monitoring and sequencing
• Comprehensive protection against overcurrent, overheating, and short circuits

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

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

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix FDZW corresponds to the W-DFN2020-6 package configuration. Confirm that the Q designation aligns with automotive compliance requirements including AEC-Q100 qualification. Ensure the ordering code matches the required fixed 5V output specification before finalizing procurement documentation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when designing for automotive environments requiring wide input voltage tolerance up to 42V. The low quiescent current makes it ideal for battery-backed systems where standby power conservation is critical. Verify that the thermal dissipation capabilities of the W-DFN2020-6 package meet the application's power handling needs under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AP7583Q/AQ series of wide input voltage LDO regulators manufactured by Diodes Incorporated. The series offers both fixed and adjustable output versions across multiple packages. The AP7583Q variant specifically targets automotive applications requiring strict change control and reliability standards.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

AP7583AQ-FDZW-7

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators FAQ

What is the function of the PG pin on the AP7583Q?

The Power-Good (PG) pin provides an open-drain output signal indicating when the regulated output voltage is within the specified threshold range, facilitating system sequencing and monitoring.

How does the AP7583Q handle overtemperature conditions?

The device incorporates a thermal shutdown function that disables the output when the junction temperature reaches approximately +175°C, re-enabling the circuit once the temperature drops to around +155°C.