AP7387-33Y-13

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

The AP7387-33Y-13 is a fixed-output linear regulator manufactured by Diodes Incorporated, providing a stable 3.3V output with a maximum current capacity of 150mA. It operates within a wide input voltage range from 5V to 60V and features a typical quiescent current of 2μA. The device utilizes an SOT-89-3 package and includes internal protections such as thermal shutdown, short-circuit protection, and output current limiting. It offers high power supply rejection ratio (PSRR) of 70dB at 1kHz and maintains excellent line and load regulation characteristics.

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

• Wide input voltage range supporting up to 60V
• Low quiescent current for battery-powered applications
• Integrated thermal shutdown and short-circuit protection
• High power supply rejection ratio

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 suffix '13' corresponds to the standard SOT-89 tape and reel packaging configuration. Confirm RoHS compliance status and ensure the ordering code matches the required 3.3V fixed output variant. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and revision level before procurement.

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

Select this component when a high-voltage input source requires conversion to a precise 3.3V rail with minimal standby power consumption. Ensure the application environment stays within the specified operating junction temperature range. Verify that the external capacitor values meet stability requirements for the chosen load conditions.

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

This part belongs to the AP7387 series of ultra-low dropout regulators designed for high-voltage inputs. The series provides multiple fixed output voltages including 3.0V, 3.3V, 3.6V, and 5.0V. It is available in various packages such as SOT-23, SOT-25, and U-DFN2020-6, catering to different thermal and space constraints in power management designs.

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

AP7387-33W5-7

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

What is the recommended output capacitor value for stability?

A minimum output capacitance of 10μF is required, preferably using X7R or X5R ceramic capacitors.

Does the device include overcurrent protection?

Yes, it features internal current-limit circuitry, short-circuit protection, and thermal shutdown to prevent damage during fault conditions.