AP7387-50FDC-7

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

The AP7387-50FDC-7 is a wide input voltage range, low quiescent current, high PSRR linear regulator from Diodes Incorporated. It provides a fixed 5.0V output with a maximum load current of 150mA. The device operates with an input voltage range of 5V to 60V and features a typical dropout voltage of 700mV at 100mA and 1100mV at 150mA. Quiescent current is typically 2μA, with output voltage accuracy of ±2% and high PSRR of 70dB at 1kHz. It includes thermal shutdown, short-circuit protection, and current limit functions. The component is housed in a U-DFN2020-6 (Type C) package.

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

• Wide input voltage range supporting up to 60V for robust power supply applications
• Integrated protection mechanisms including thermal shutdown, short-circuit protection, and output current limiting
• High power supply rejection ratio ensuring stable regulation under noisy conditions
• Low quiescent current consumption suitable for battery-powered equipment

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

• Battery-powered equipment
• Smoke detectors and sensors
• EV and HEV battery management systems
• Micro-controller applications
• Home appliances

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

Verify the specific ordering suffix FDC-7 confirms the U-DFN2020-6 (Type C) package and tape & reel packing configuration. Ensure the part number corresponds to the 5.0V output variant (XX=50). Confirm compliance with RoHS and lead-free requirements as specified in the datasheet notes. Check for any automotive-grade variants if higher reliability standards are required for the application environment.

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

Select this regulator when a wide input voltage range up to 60V is required alongside a fixed 5.0V output. Consider the U-DFN2020-6 package for its thermal dissipation capabilities via the exposed pad. Ensure input and output capacitor values meet the minimum recommendations for stability. Evaluate thermal resistance and junction temperature limits based on the expected load current and ambient operating conditions.

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

The AP7387 series offers multiple fixed output voltages including 3.0V, 3.3V, 3.6V, and 5.0V. It is available in various packages such as SOT23, SOT25, SOT89, and U-DFN2020-6. An automotive-compliant version, AP7387Q, exists under a separate datasheet. This specific model uses the U-DFN2020-6 package for enhanced thermal performance compared to smaller surface-mount options.

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

AP7387-50SA-7

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

What is the recommended output capacitor type and value?

A ceramic capacitor with X7R or X5R temperature characteristics is recommended. The minimum recommended output capacitance is 10μF.

How does the device handle overcurrent conditions?

The AP7387 includes an internal current-limit circuit that clamps the output current at a pre-designed level to prevent overcurrent and thermal damage during short-circuit or heavy load conditions.