Diodes Inc. AP2112K-3.3TRG1 3.3V 600mA LDO Voltage Regulator, SOT-25-5

The Diodes Inc. AP2112K-3.3TRG1 is a CMOS process low dropout (LDO) linear voltage regulator with an enable function, designed to deliver a stable and precise 3.3V output. It guarantees a minimum continuous load current of 600mA, making it a robust power management solution for a wide range of compact electronic applications.

This regulator boasts an impressive output accuracy of ±1.5% and features a very fast loop response, providing excellent performance for managing line and load transients, ensuring your sensitive circuits remain stable under varying conditions. An integrated auto-discharge function actively connects the output to ground via a 60-ohm resistor when the device is disabled, preventing unwanted residual voltage.

Key Features & Benefits

• High Efficiency & Low Power: With a low dropout voltage and quiescent current of just 55µA typical, it maximises battery life in portable devices.
• Comprehensive Protection: Includes over-temperature shutdown (OTSD) and strong ESD protection (MM 400V, HBM 4000V) for enhanced reliability.
• Excellent Regulation: Delivers tight line regulation (±0.1%/V) and load regulation (±1%/A) for a clean, consistent output.
• Ultra-Low Noise: Features a low RMS output noise of 50µVRMS typical, ideal for noise-sensitive analogue and digital circuits.
• Space-Saving Design: Housed in a compact SOT-25-5 surface-mount package, perfect for space-constrained PCB layouts.

Technical Specifications

• Output Voltage: Fixed 3.3V
• Input Voltage Range: 2.5V to 6.0V
• Maximum Output Current: 600mA (minimum)
• Dropout Voltage: 250mV typical
• Quiescent Current: 55µA typical
• Standby Current: 0.01µA typical (with enable off)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOT-25 (5-pin)
• Mounting: Surface-mou