LT1764ET#06PBF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: Low Dropout, High PSRR, Low Noise
• Package: TO-220
• Essence: Linear Regulator
• Packaging/Quantity: Tape & Reel, 1000 units per reel

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage Range: 1.21V to 15V
• Dropout Voltage: 300mV at 1A Load Current
• Maximum Output Current: 3A
• Line Regulation: ±0.02%
• Load Regulation: ±0.04%
• Quiescent Current: 80µA
• Ripple Rejection Ratio: 70dB
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LT1764ET#06PBF has three pins:

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

Functional Features

• Low dropout voltage enables operation with small input-output differentials.
• High power supply rejection ratio (PSRR) ensures stable output voltage even in noisy environments.
• Low output noise makes it suitable for noise-sensitive applications.
• Fast transient response allows for rapid load changes without significant voltage fluctuations.
• Current limit protection prevents excessive current flow and protects the device from damage.
• Thermal shutdown feature safeguards against overheating.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows for versatile applications. - High output current capability suits various demanding loads. - Excellent line and load regulation ensure accurate and stable output voltage. - Low quiescent current minimizes power consumption. - Compact TO-220 package facilitates easy integration into different systems.

Disadvantages: - Relatively high dropout voltage compared to some other regulators. - Limited output voltage range may not be suitable for certain applications requiring higher voltages.

Working Principles

The LT1764ET#06PBF is a linear regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage derived from the output. Any difference between these voltages is amplified and used to adjust the pass transistor, maintaining a stable output voltage despite changes in input voltage or load conditions.

Detailed Application Field Plans

The LT1764ET#06PBF finds applications in various fields, including but not limited to:

1. Portable Electronics: Powering microcontrollers, sensors, and display modules in smartphones, tablets, and wearable devices.
2. Industrial Automation: Providing regulated power to control systems, motor drivers, and communication modules.
3. Automotive Electronics: Regulating voltage for infotainment systems, lighting controls, and engine management units.
4. Medical Devices: Supplying stable power to patient monitoring equipment, diagnostic devices, and medical imaging systems.
5. Audio Systems: Delivering clean power to amplifiers, DACs, and audio processors for high-fidelity sound reproduction.

Detailed and Complete Alternative Models

1. LM317T: Adjustable voltage regulator with similar characteristics and pin configuration.
2. LT1086CT-5: Fixed 5V regulator offering low dropout voltage and high current capability.
3. LM1117IMPX-3.3/NOPB: Fixed 3.3V regulator with low quiescent current and thermal shutdown protection.

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