AP7583Q-33MP-13

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

The AP7583Q-33MP-13 is a fixed-output 3.3V 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 of 3V to 42V. The device features ultra-low quiescent current of 2.5µA at light loads and high output-voltage accuracy of ±1.5%. It includes thermal shutdown, short-circuit protection, and current limiting. Packaged in MSOP-8EP, it operates within a junction temperature range of -40°C to +125°C.

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

• Ultra-low quiescent current of 2.5µA suitable for always-on components
• Wide input voltage range up to 42V for automotive environments
• Integrated power-good indicator and enable pin for system control
• Robust protection against overcurrent, thermal overload, and short circuits

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

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

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

Verify the specific suffix 'MP' corresponds to the MSOP-8EP package and '13' indicates tape-and-reel packaging. Confirm the 'Q' designation ensures AEC-Q100 qualification and PPAP capability required for automotive change control. Cross-reference the datasheet revision DS43764 Rev. 3-2 for accurate electrical characteristics and ordering details.

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

Select this component when a stable 3.3V rail is needed for automotive electronics requiring low standby power consumption. The wide input range accommodates vehicle load-dump conditions. Ensure the application benefits from the integrated power-good signal for sequencing or monitoring. Verify that the thermal requirements align with the MSOP-8EP package's dissipation capabilities under expected load currents.

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

This part belongs to the AP7583Q/AQ series of wide-input-voltage ULDO regulators. The 'Q' variant specifically denotes automotive compliance without the power-good feature found in the 'AQ' version. It shares core architecture with adjustable versions but provides a fixed 3.3V output, simplifying design by removing external feedback resistors while maintaining high accuracy and low dropout performance.

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

Direct substitutes include other parts from the AP7583Q/AQ family with different output voltages or packages, such as AP7583Q-MP-13 (Adjustable) or AP7583Q-FDZW-7 (W-DFN2020-6). Ensure any replacement maintains the 300mA current rating, 42V input limit, and AEC-Q100 qualification if automotive use is intended.