LT1764ET#30PBF

Product Overview

• Category: Voltage Regulator
• Use: Provides a regulated output voltage for electronic circuits
• Characteristics: Low dropout, high accuracy, low quiescent current
• Package: TO-220
• Essence: Linear regulator
• Packaging/Quantity: Tape and reel, 1000 units per reel

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage: 3.0V
• Output Current: Up to 1.5A
• Dropout Voltage: 300mV at full load
• Quiescent Current: 50µA
• Line Regulation: ±0.02%
• Load Regulation: ±0.04%
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1764ET#30PBF has three pins:

1. VIN (Pin 1): Input voltage pin
2. GND (Pin 2): Ground pin
3. VOUT (Pin 3): Output voltage pin

Functional Features

• Low dropout voltage allows operation with small input-output differentials
• High accuracy ensures precise output voltage regulation
• Low quiescent current minimizes power consumption
• Excellent line and load regulation for stable performance
• High ripple rejection reduces noise in the output voltage

Advantages and Disadvantages

Advantages

• Low dropout voltage enables efficient operation in low voltage applications
• High accuracy ensures reliable voltage regulation
• Low quiescent current extends battery life in portable devices
• Excellent line and load regulation provide stable output voltage under varying conditions
• High ripple rejection reduces noise interference in sensitive circuits

Disadvantages

• Limited output current capacity may not be suitable for high-power applications
• Higher cost compared to switching regulators
• Requires external capacitors for stability

Working Principles

The LT1764ET#30PBF is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage and adjusting the pass transistor accordingly. This ensures a stable output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The LT1764ET#30PBF is commonly used in various electronic devices, including:

1. Battery-powered devices: Provides regulated voltage for microcontrollers, sensors, and other low-power components.
2. Audio equipment: Ensures clean and stable power supply for audio amplifiers, DACs, and other audio circuitry.
3. Industrial control systems: Used in control panels, PLCs, and motor drives to maintain precise voltage levels.
4. Automotive electronics: Regulates voltage for automotive ECUs, infotainment systems, and lighting modules.

Detailed and Complete Alternative Models

1. LM317T: Similar linear voltage regulator with adjustable output voltage.
2. LT1084CP-5: Linear regulator with higher output current capability.
3. LM1117MPX-3.3: Low dropout voltage regulator with fixed 3.3V output.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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