LE30ABD

Product Overview

Category: Electronic Component
Use: Voltage Regulator
Characteristics: High precision, low dropout voltage, compact size
Package: TO-220
Essence: Linear regulator with adjustable output voltage
Packaging/Quantity: Individually packaged, 1 unit per package

Specifications

• Input Voltage Range: 2.5V - 20V
• Output Voltage Range: 1.25V - 18V
• Dropout Voltage: 0.4V @ 500mA
• Maximum Output Current: 500mA
• Line Regulation: ±0.02%
• Load Regulation: ±0.1%
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LE30ABD voltage regulator has three pins:

1. Input (VIN): Connects to the input voltage source.
2. Output (VOUT): Provides the regulated output voltage.
3. Ground (GND): Common ground reference for the regulator.

Functional Features

• Adjustable output voltage allows flexibility in various applications.
• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High precision and low output voltage deviation provide stable and accurate voltage regulation.
• Compact TO-220 package enables easy integration into circuit designs.
• Low quiescent current minimizes power consumption during standby or idle modes.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows compatibility with various power sources. - Excellent line and load regulation ensure consistent performance under different conditions. - Compact size makes it suitable for space-constrained applications. - Adjustable output voltage provides versatility for different circuit requirements.

Disadvantages: - Limited maximum output current may not be sufficient for high-power applications. - Dropout voltage of 0.4V may cause a significant power loss in low input-output differential scenarios.

Working Principles

The LE30ABD is a linear voltage regulator that operates by using a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The adjustable output voltage is achieved by using an external resistor divider network connected to the feedback pin.

Detailed Application Field Plans

The LE30ABD is commonly used in various electronic devices and systems, including but not limited to:

1. Battery-powered devices: Provides regulated voltage for microcontrollers, sensors, and other low-power components.
2. Automotive electronics: Ensures stable voltage supply for automotive control units, infotainment systems, and lighting modules.
3. Industrial automation: Used in PLCs (Programmable Logic Controllers), motor control circuits, and instrumentation systems.
4. Communication equipment: Regulates voltage for routers, switches, and wireless access points.
5. Consumer electronics: Suitable for use in audio/video equipment, gaming consoles, and portable devices.

Detailed and Complete Alternative Models

1. LM317: Adjustable voltage regulator with similar specifications and pin configuration.
2. LT1084: High-current linear regulator with adjustable output voltage.
3. LM7805: Fixed 5V voltage regulator commonly used in many applications.
4. LM1117: Low dropout voltage regulator available in various fixed output voltages.

(Note: This list is not exhaustive and serves as examples of alternative models.)

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