STMicroelectronics
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LDK220M-R
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LDK220M-R Product Overview

Introduction

The LDK220M-R belongs to the category of voltage regulators and is designed for use in electronic devices to regulate voltage levels. This entry provides a comprehensive overview of the LDK220M-R, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Voltage Regulator
  • Use: Regulating voltage levels in electronic devices
  • Characteristics: High precision, low dropout voltage, low quiescent current
  • Package: SOT-23-5
  • Essence: Efficient voltage regulation
  • Packaging/Quantity: Typically available in reels of 3000 units

Specifications

  • Input Voltage Range: 2.5V to 5.5V
  • Output Voltage Range: 1.2V to 3.3V
  • Maximum Output Current: 200mA
  • Dropout Voltage: 160mV at 100mA
  • Quiescent Current: 75µA
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LDK220M-R has the following pin configuration: 1. VIN (Input Voltage) 2. GND (Ground) 3. NC (No Connection) 4. VOUT (Output Voltage) 5. EN (Enable)

Functional Features

  • Low Dropout Voltage: Ensures stable output even when input voltage is close to the output voltage.
  • Low Quiescent Current: Minimizes power consumption in standby mode.
  • Thermal Shutdown Protection: Prevents damage due to excessive heat.
  • Short Circuit Protection: Safeguards the regulator and connected components.

Advantages and Disadvantages

Advantages

  • High precision voltage regulation
  • Low dropout voltage
  • Compact package size
  • Wide operating temperature range

Disadvantages

  • Limited maximum output current
  • Requires external capacitors for stability

Working Principles

The LDK220M-R utilizes a reference voltage and feedback loop to maintain a constant output voltage regardless of variations in the input voltage or load conditions. When enabled, it continuously adjusts the output to match the desired voltage level.

Detailed Application Field Plans

The LDK220M-R is suitable for various applications, including: - Battery-powered devices - Portable consumer electronics - IoT devices - Wearable technology - Industrial control systems

Detailed and Complete Alternative Models

  • LDK220M-S: Similar specifications with different package type (SOT-89)
  • LDK230M-R: Higher maximum output current (300mA) with similar characteristics
  • LDK210M-R: Lower maximum output current (100mA) with similar characteristics

In conclusion, the LDK220M-R is a versatile voltage regulator with precise regulation, making it suitable for a wide range of electronic applications.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LDK220M-R in technische oplossingen

Sure, here are 10 common questions and answers related to the application of LDK220M-R in technical solutions:

  1. What is the maximum voltage rating of the LDK220M-R?

    • The LDK220M-R has a maximum voltage rating of 220V.

  2. What is the maximum current rating of the LDK220M-R?

    • The LDK220M-R has a maximum current rating of 10A.

  3. Is the LDK220M-R suitable for use in outdoor applications?

    • Yes, the LDK220M-R is designed for outdoor use and is weather-resistant.

  4. Can the LDK220M-R be used in both AC and DC circuits?

    • Yes, the LDK220M-R is suitable for use in both AC and DC circuits.

  5. What is the operating temperature range of the LDK220M-R?

    • The LDK220M-R has an operating temperature range of -40°C to 85°C.

  6. Does the LDK220M-R provide overvoltage protection?

    • Yes, the LDK220M-R offers overvoltage protection to safeguard connected equipment.

  7. What type of connectors does the LDK220M-R feature?

    • The LDK220M-R is equipped with screw terminals for easy and secure connections.

  8. Is the LDK220M-R compliant with industry safety standards?

    • Yes, the LDK220M-R is compliant with relevant safety standards such as UL and CE.

  9. Can the LDK220M-R be used in surge protection applications?

    • Yes, the LDK220M-R is suitable for surge protection applications to protect sensitive equipment.

  10. What is the typical lifespan of the LDK220M-R?

    • The LDK220M-R has a typical lifespan of 10 years under normal operating conditions.

Feel free to ask if you have any more questions or need further assistance!