ALD212902PAL

Product Overview

Category: Integrated Circuit
Use: Voltage Regulator
Characteristics: Low dropout, high accuracy
Package: TO-220
Essence: Regulating voltage with minimal dropout
Packaging/Quantity: 25 pieces per tube

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage Range: 1.2V to 18V
• Dropout Voltage: 0.6V at 1A
• Output Current: 1A
• Line Regulation: 0.02% typical
• Load Regulation: 0.2% typical
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. Vin (Input Voltage)
2. GND (Ground)
3. Vout (Output Voltage)

Functional Features

• Low dropout voltage
• High accuracy over line and load variations
• Thermal shutdown and current limit protection
• Fast transient response

Advantages

• Wide input voltage range
• Low dropout voltage
• Excellent line and load regulation
• Compact TO-220 package

Disadvantages

• Limited output current compared to some alternatives
• Higher quiescent current than certain ultra-low-power regulators

Working Principles

The ALD212902PAL is a low dropout linear voltage regulator that maintains a stable output voltage even when the input voltage is only slightly higher than the desired output voltage. This is achieved through a pass transistor that adjusts its resistance to maintain the specified output voltage.

Detailed Application Field Plans

The ALD212902PAL is well-suited for applications requiring a stable and accurate voltage supply, such as battery-powered devices, instrumentation, and automotive electronics. Its low dropout characteristics make it particularly useful in scenarios where the input voltage may be close to the required output voltage.

Detailed and Complete Alternative Models

1. LM1117 - Similar low dropout voltage regulator with adjustable or fixed output options
2. LT1763 - Ultra-low quiescent current regulator for battery-powered applications
3. L78xx - Classic linear voltage regulator series with higher output current capabilities

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This entry provides comprehensive information about the ALD212902PAL, including its specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.