AP2112R5-3.3TRG1

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

The AP2112R5-3.3TRG1 is a CMOS low dropout linear regulator manufactured by Diodes Incorporated, delivering a guaranteed minimum continuous load current of 600mA. It provides a fixed output voltage of 3.3V with an accuracy of ±1.5%. The device features a typical dropout voltage of 250mV at full load and includes an enable function for power management. It operates within an ambient temperature range of -40°C to +85°C and utilizes the SOT89-5 (R5) package.

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

• Integrated auto discharge function that connects the output to ground via a 60Ω resistor when disabled
• Foldback short circuit protection limiting current to 50mA during fault conditions
• Capable of driving flexible capacitors including ceramic, tantalum, and aluminum electrolytic types
• Includes thermal shutdown protection to safeguard against overheating

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

• Laptop Computer
• LCD Monitor
• Portable DVD

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

Verify the specific R5 pinout configuration required for your design, as the datasheet indicates alternative SOT89-5 options exist. Confirm RoHS compliance status and ensure the selected component matches the exact marking ID G37G for traceability. Validate that the application environment remains within the specified operating temperature limits.

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

Select this component when a fixed 3.3V rail is required with high current capability in a compact footprint. Ensure input voltage stays between 2.5V and 6.0V. Verify that the external capacitor selection meets stability requirements for the chosen dielectric type. Consider the thermal resistance characteristics of the SOT89-5 package for heat dissipation needs.

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

This part belongs to the AP2112 series of 600mA CMOS LDO regulators. The 'R5' suffix specifically denotes the SOT89-5 package variant with a defined pin assignment. Other variants include SO-8 and different SOT89-5 configurations. The series supports multiple fixed output voltages including 1.2V, 1.8V, 2.5V, 2.6V, and 3.3V.

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

AP2112K-3.3TRG1 (SOT25 package)

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

What happens to the output voltage when the Enable pin is set to Low?

When the Enable pin is Low, the regulator shuts down the output and activates an internal auto discharge function that pulls the output to ground through a 60Ω resistor.

Is the AP2112R5-3.3TRG1 stable with ceramic capacitors?

Yes, the device is designed to be stable with flexible capacitors, including ceramic, tantalum, and aluminum electrolytic types, provided they meet the recommended specifications.