STMicroelectronics Voltage Regulator 18V Low Dropout SOT-89 3-Pin LDK320ADU33R

STMicroelectronics LDK320ADU33R is a high-performance low dropout voltage regulator designed for efficient power management in industrial and electronic applications. This device operates with an input voltage range from 2.5 V to 18 V and provides a stable output current up to 200 mA with a typical dropout voltage of just 100 mV at 100 mA load, making it highly efficient for battery-powered and portable equipment.

The regulator consumes a very low quiescent current, around 60 μA during operation, minimizing power loss. It includes a logic-controlled enable pin to switch into shutdown mode, reducing current consumption to below 1 μA, ideal for low power designs.

In addition to basic regulation, the LDK320ADU33R incorporates integrated protections such as short-circuit current limiting, thermal shutdown, and safe operating area (SOA) protections, improving operational reliability under demanding conditions. It supports surface-mount technology via a compact SOT-89 3-pin package with dimensions 4.6 mm length, 2.6 mm width, and 1.6 mm height.

The device is stabilized using a ceramic output capacitor of 1 μF, ensuring low noise output and stable performance across load conditions. The operating temperature rating up to 125 °C allows functioning in rigorous industrial environments.

Output voltages are available in a wide range from 1.2 V to 12 V fixed voltages with 100 mV increments or as adjustable voltage versions, providing design flexibility for various power supply needs.

Key applications include electronic circuits requiring compact, efficient power supplies such as portable electronics, battery-powered devices, and industrial control systems.

Overall, the STMicroelectronics LDK320ADU33R voltage regulator delivers excellent power regulation performance with robust protections, low power consumption, and versatility in a small footprint.

Explore more Voltage Regulators and power management ICs in our Electronics & Electricals category at EnvMart for your industrial and electronic design requirements. Operates with input voltages ranging from 2.5 V to 18 V.

Typical dropout voltage is 100 mV at 100 mA load ensuring efficient voltage regulation. Features low quiescent current of approximately 60 μA during operation and 1 μA in shutdown mode. Includes electronic shutdown controlled by logic for low power consumption.

Short-circuit current limiting, thermal shutdown, and SOA protections provide device reliability. Compatible with a ceramic output capacitor of 1 μF for stable operation. Dimensions are compact with length 4.6 mm, width 2.6 mm, and height 1.6 mm.

Designed for low power battery-powered and portable industrial electronics applications. Operating temperature up to 125°C suitable for harsh environments. Available with output voltages fixed from 1.2 V to 12 V in 100 mV steps or adjustable output option.