AP7583Q-33FDZW-7

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

The AP7583Q-33FDZW-7 is a fixed-output 3.3V ultra-low dropout (ULDO) linear regulator manufactured by Diodes Incorporated. It provides a maximum output current of 300mA with an input voltage range from 3V to 42V. The device features a typical quiescent current of 2.5µA and high output voltage accuracy of ±1.5%. It includes thermal shutdown, short-circuit protection, and output current limiting. The component is housed in a W-DFN2020-6 (SWP) Type A1 package.

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

• Ultra-low quiescent current for always-on automotive applications
• Wide input voltage range supporting up to 42V
• Integrated thermal shutdown and current limit protection
• High output voltage accuracy with low dropout characteristics

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 (SWP) Type A1 package configuration. Confirm that the Q suffix indicates automotive compliance and AEC-Q100 qualification status. Ensure the ordering code matches the required 3.3V fixed output version rather than adjustable or 5V variants.

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

Select this component when a wide input voltage range up to 42V is required for automotive environments. Choose this part over the AP7583AQ variant if a power-good indicator is not needed for supply sequencing. Verify that the 300mA load requirement fits within the thermal dissipation limits of the W-DFN2020-6 package.

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

This part belongs to the AP7583Q/AQ series of 300mA ULDO regulators designed for automotive battery-powered applications. The series offers both fixed and adjustable output versions across MSOP-8EP, W-DFN2020-6, and TO252-4 packages. The 'Q' designation specifically denotes automotive-grade qualification suitable for IATF16949 certified facilities.

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

AP7583Q-50FDZW-7 (Same package, 5V output)

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

Does the AP7583Q-33FDZW-7 include a power-good pin?

No, the AP7583Q series does not include a power-good pin. This feature is available only on the AP7583AQ series.

What is the recommended output capacitor type for stability?

Ceramic capacitors are recommended. The device is stable with output capacitance ranging from 4.7µF to 100µF.