AP7387Q-50FDCW-7

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

The AP7387Q-50FDCW-7 is a fixed-output automotive-grade ultra-low dropout regulator manufactured by Diodes Incorporated. It provides a stable 5V output with a maximum continuous current of 150mA. The device supports a wide input voltage range from 5V to 60V and operates within an ambient temperature range of -40°C to +125°C. It utilizes the U-DFN2020-6 (SWP) package, which includes an exposed pad for thermal dissipation. Key electrical characteristics include a typical quiescent current of 2µA, high power supply rejection ratio of 70dB at 1kHz, and excellent line and load regulation.

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

• Automotive compliance with AEC-Q100 qualification and PPAP capability for specific change control requirements.
• Wide input voltage tolerance up to 60V combined with low quiescent current for efficient power management.
• Integrated protection mechanisms including short-circuit protection, output current limiting, and thermal shutdown.
• High power supply rejection ratio ensuring stable operation against input noise and rapid transient changes.

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

• Powering microcontrollers and CAN/LIN transceivers in automotive networks
• Supplying power to battery management systems in electric and hybrid vehicles
• Providing regulated voltage for body control modules and transmission control units

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

Verify that the component matches the specified U-DFN2020-6 package configuration and confirms the 5V fixed output variant. Ensure the supplier provides documentation verifying AEC-Q100 qualification status and IATF 16949 manufacturing certification. Confirm RoHS compliance and halogen-free status as required by project specifications before finalizing procurement orders.

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

Select this regulator when designing circuits requiring high input voltage tolerance up to 60V with minimal standby power consumption. The U-DFN2020-6 package offers a compact footprint suitable for space-constrained automotive PCB layouts. Consider the thermal resistance characteristics of the exposed pad design for effective heat dissipation under heavy load conditions near the 150mA limit.

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

This component belongs to the AP7387Q series of ultra-low dropout regulators designed specifically for automotive environments. The series features wide input voltage ranges and robust transient response capabilities. The FDCW suffix indicates the specific U-DFN2020-6 surface-mount package type used for this particular part number.

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

Cross-reference with other AP7387Q variants offering different output voltages or SOT89 packaging if physical footprint constraints differ. Verify pinout compatibility and thermal performance metrics when substituting with similar automotive-grade LDOs from alternative manufacturers.

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

What is the recommended output capacitor value for stability?

A minimum output capacitance of 1µF is required for stability, with ceramic capacitors having X7R or X5R temperature characteristics being recommended.

How does the device handle overcurrent conditions?

The AP7387Q incorporates internal current-limit protection that clamps the output current to a pre-designed level to prevent damage during short-circuit or overload events.