AP7366EA-39W5-7

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

The AP7366EA-39W5-7 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated. It provides a stable 3.9V output with a maximum continuous current of 600mA. The device operates within an input voltage range of 2.2V to 6V and features a typical quiescent current of 60µA. Key electrical parameters include a dropout voltage of 190mV at 600mA, a power supply rejection ratio of 75dB at 1kHz, and a fast start-up time of 150µs. It incorporates built-in current limit and thermal shutdown protection. The component is housed in a SOT25 surface-mount package.

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

• Provides a fixed 3.9V regulated output with high current capability up to 600mA.
• Features ultra-low quiescent current consumption for efficient battery-powered applications.
• Includes comprehensive protection mechanisms against over-current, short-circuit conditions, and thermal overload.
• Ensures stability with small ceramic output capacitors and delivers rapid transient response.

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

• Servers and notebook computers
• Low and medium power electronic applications
• FPGA and DSP core or I/O power supplies
• Consumer electronics devices

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

Verify the specific ordering suffix W5 confirms the SOT25 package configuration prior to procurement. Confirm that the fixed 3.9V output variant aligns with the target circuit design requirements. Ensure compliance with RoHS 3 and halogen-free standards as specified by the manufacturer. Check for any automotive qualification requirements if the application demands AEC-Q100/101 certification. Validate that the supplier channel is authorized to prevent counterfeit components.

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

Select this regulator when a fixed 3.9V rail is required with moderate current demands up to 600mA. Consider the SOT25 package for space-constrained PCB layouts compared to larger alternatives. Evaluate the dropout voltage characteristics to ensure sufficient headroom between input and output voltages under maximum load conditions. Assess the thermal resistance capabilities relative to the expected ambient temperature and power dissipation levels.

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

This component belongs to the AP7366EA series of low dropout regulators designed for portable and low-power systems. The series offers both adjustable and fixed output options across various voltage levels. The AP7366EA-39W5-7 specifically denotes the fixed 3.9V version packaged in SOT25. It shares common architectural features with other variants in the family, such as low IQ and fast transient response, tailored for different voltage rails.

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

AP7366EA-39SN-7

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

What is the minimum required output capacitance for stability?

The device is stable with low ESR ceramic output capacitors. A minimum value of 1µF is recommended on the output pin to ensure stability and improve transient response.

How does the enable function operate?

The EN pin is active high. Setting the EN pin to a logic high level turns the regulator on, while pulling it low disables the output. If always-on operation is desired, the EN pin should be tied to the IN pin.