LDK120C15R - English Editing Encyclopedia Entry

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High efficiency, low dropout voltage
Package: TO-252-3 (DPAK)
Essence: Linear voltage regulator
Packaging/Quantity: Tape and Reel / 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage: 1.5V
• Output Current: Up to 1.2A
• Dropout Voltage: 0.25V at 1A
• Line Regulation: ±0.05%
• Load Regulation: ±0.1%
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LDK120C15R has three pins in the TO-252-3 package: 1. Pin 1: Input Voltage (VIN) 2. Pin 2: Ground (GND) 3. Pin 3: Output Voltage (VOUT)

Functional Features

• Low dropout voltage ensures efficient power conversion.
• Excellent line and load regulation for stable output voltage.
• Low quiescent current minimizes power consumption.
• Overcurrent and thermal protection for enhanced reliability.
• Fast transient response for quick voltage stabilization.

Advantages

• High efficiency results in reduced power dissipation.
• Wide input voltage range allows versatile applications.
• Compact TO-252-3 package enables easy integration.
• Robust overcurrent and thermal protection enhance durability.
• Fast transient response ensures stable output under dynamic loads.

Disadvantages

• Limited output current may not be suitable for high-power applications.
• Dropout voltage of 0.25V may affect performance in low-voltage scenarios.

Working Principles

The LDK120C15R is a linear voltage regulator that maintains a constant output voltage of 1.5V, regardless of changes in the input voltage or load conditions. It achieves this by using a pass transistor to regulate the voltage drop across it. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly to maintain the desired output voltage.

Detailed Application Field Plans

The LDK120C15R finds applications in various electronic devices where a stable 1.5V power supply is required. Some common application fields include: - Battery-powered devices - Portable audio players - Wireless communication systems - Embedded systems - Industrial control systems

Detailed and Complete Alternative Models

1. LDK120C10R: Output Voltage - 1.0V, Output Current - Up to 1.2A
2. LDK120C12R: Output Voltage - 1.2V, Output Current - Up to 1.2A
3. LDK120C18R: Output Voltage - 1.8V, Output Current - Up to 1.2A
4. LDK120C25R: Output Voltage - 2.5V, Output Current - Up to 1.2A

These alternative models offer different output voltages while sharing similar specifications and characteristics with the LDK120C15R.

In conclusion, the LDK120C15R is a high-efficiency linear voltage regulator designed for stable 1.5V power supply applications. Its compact package, low dropout voltage, and excellent regulation make it suitable for a wide range of electronic devices. However, its limited output current and dropout voltage should be considered when selecting the appropriate voltage regulator for specific applications.