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LDK320ADU120R

LDK320ADU120R Description

The LDK320ADU120R from STMicroelectronics is a high-performance, low-dropout (LDO) linear voltage regulator designed for precision power management in compact electronic systems. This fixed 12V output regulator delivers a stable 200mA current with an ultra-low dropout voltage of 0.35V at full load, ensuring efficient operation even with input voltages as low as 12.35V. Its wide input voltage range (up to 18V) makes it suitable for diverse power supply scenarios. The device features low quiescent current (90 µA) and minimal supply current (100 µA max), optimizing energy efficiency in battery-powered applications. Packaged in a SOT89 surface-mount format and available in Tape & Reel (TR), it is ideal for automated assembly processes.

LDK320ADU120R Features

• High Accuracy & Stability: Fixed 12V output with tight voltage regulation.
• Low Dropout Voltage: 0.35V @ 200mA maximizes efficiency in low-input-voltage conditions.
• Ultra-Low Power Consumption: 90 µA quiescent current extends battery life in portable devices.
• Robust Protection: Integrated over-current and over-temperature safeguards enhance reliability.
• Excellent Noise Rejection: PSRR of 88dB (120Hz) to 48dB (10kHz) ensures clean output in noisy environments.
• Compact & Reliable: SOT89 package with MSL1 (Unlimited) moisture sensitivity, compliant with ROHS3 and REACH standards.

LDK320ADU120R Applications

• Industrial Control Systems: Stable voltage supply for sensors, PLCs, and low-power controllers.
• Consumer Electronics: Power management in set-top boxes, routers, and audio/video equipment.
• Automotive Electronics: Auxiliary power for infotainment and telematics (non-critical ECUs).
• Battery-Powered Devices: Ideal for IoT nodes, wearables, and handheld instruments due to low Iq.
• Medical Devices: Reliable voltage regulation for portable diagnostic equipment.

Conclusion of LDK320ADU120R

The LDK320ADU120R stands out as a high-efficiency, compact LDO regulator with exceptional noise immunity and low power consumption. Its combination of low dropout, robust protection, and industry-standard compliance makes it a superior choice for applications demanding reliable 12V regulation in space-constrained designs. Whether for industrial, automotive, or consumer electronics, this regulator delivers performance and durability, backed by STMicroelectronics' proven quality.