STMicroelectronics LDK220M-R Adjustable Linear Voltage Regulator
- Brand: STMicroelectronics
- Product Code: LDK220M-R
- Availability: In Stock
$0.25
- Ex Tax: $0.25
STMicroelectronics LDK220M-R: High-Performance Adjustable Linear Voltage Regulator for Modern Electronics
The STMicroelectronics LDK220M-R is a cutting-edge adjustable linear voltage regulator designed to meet the demanding requirements of modern electronic systems. This compact yet powerful component delivers exceptional performance in battery-powered applications, portable devices, and embedded systems requiring stable voltage regulation with minimal power consumption. With its advanced features and robust protection mechanisms, the LDK220M-R represents a perfect balance between efficiency, reliability, and design flexibility.
Key Technical Advantages
Engineered for optimal performance, this linear regulator offers a maximum input voltage of 13.2V while maintaining a remarkably low dropout voltage of just 0.35V at 200mA load current. Its adjustable output configuration allows designers to precisely tailor voltage levels according to specific application requirements, making it particularly valuable in systems with varying power needs. The device's quiescent current of 90µA and maximum supply current of 100µA ensure minimal power consumption in standby modes, extending battery life in portable applications.
One of the standout features of the LDK220M-R is its comprehensive protection system. Integrated overcurrent and overtemperature safeguards prevent damage under fault conditions, while the enable control function provides additional power management capabilities. These built-in protections reduce the need for external circuitry, simplifying design complexity and saving valuable PCB space.
| Parameter | Value |
|---|---|
| Output Current | 200mA |
| Dropout Voltage | 0.35V @ 200mA |
| Operating Temperature | -40°C to 125°C |
| Package Type | SOT-23-5 |
| PSRR Performance | 60dB ~ 45dB (120Hz ~ 10kHz) |
Design Flexibility and Integration
The LDK220M-R's surface-mount SOT-23-5 package enables efficient thermal management while maintaining a compact footprint. This makes it ideal for space-constrained designs in smartphones, wearable devices, and IoT sensors. The device's wide operating temperature range (-40°C to 125°C) ensures reliable performance across industrial and automotive applications, where environmental conditions can vary significantly.
Engineers will appreciate the regulator's power supply rejection ratio (PSRR) of 60dB at 120Hz, decreasing to 45dB at 10kHz, which provides excellent noise suppression capabilities. This characteristic makes the LDK220M-R particularly suitable for powering noise-sensitive analog circuits and RF modules where voltage stability is critical.
Applications and Use Cases
This versatile voltage regulator finds applications in multiple domains: portable medical devices requiring stable power delivery, industrial measurement equipment needing precise voltage control, automotive sensor systems operating in harsh environments, and consumer electronics demanding long battery life. Its adjustable output feature makes it particularly valuable in systems where multiple voltage rails need to be generated from a single power source.
For designers working on energy-efficient systems, the LDK220M-R's low quiescent current and enable function allow for sophisticated power management strategies. When combined with its tape-and-reel packaging format, this component offers both design flexibility and manufacturing efficiency, making it a preferred choice for both prototyping and mass production scenarios.
Tags: Adjustable Voltage Regulator, Low Dropout Regulator, SOT-23 Package, Linear Regulator IC, Battery-Powered Devices