LT1764AEFE-1.8#TRPBF

Overview

Product Category: Voltage Regulator
Use: Power management
Characteristics: Low dropout, low noise, high accuracy
Package: SOT-23-5
Essence: Linear voltage regulator
Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Output Voltage: 1.8V
• Dropout Voltage: 340mV at 1A
• Maximum Input Voltage: 20V
• Line Regulation: ±0.02%
• Load Regulation: ±0.04%
• Quiescent Current: 45µA
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LT1764AEFE-1.8#TRPBF has a total of five pins arranged as follows:

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| | --| VIN GND |-- Pin 1: Ground --| VOUT NC |-- Pin 2: No Connection --| NC NC |-- Pin 3: No Connection --| NC NC |-- Pin 4: No Connection --| EN NC |-- Pin 5: Enable |___________| ```

Functional Features

• Low dropout voltage allows for efficient regulation even with small input-output differentials.
• Low noise output ensures minimal interference in sensitive applications.
• High accuracy provides precise voltage regulation.
• Enable pin allows for easy on/off control of the regulator.

Advantages

• Wide input voltage range enables compatibility with various power sources.
• Excellent line and load regulation ensure stable output voltage under varying conditions.
• Low quiescent current minimizes power consumption during standby or idle states.
• Compact SOT-23-5 package offers space-saving and easy integration into designs.

Disadvantages

• Limited output voltage options restrict its use in applications requiring different voltage levels.
• Dropout voltage may cause power dissipation and heat generation in high current applications.
• Lack of built-in protection features may require additional circuitry for overcurrent or overtemperature protection.

Working Principles

The LT1764AEFE-1.8#TRPBF 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 from a voltage divider network connected to the output. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in load and input voltage.

Detailed Application Field Plans

The LT1764AEFE-1.8#TRPBF is commonly used in various applications, including:

1. Battery-powered devices: Provides stable voltage regulation for portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial equipment: Ensures reliable power management in control systems, sensors, and communication modules.
3. Automotive electronics: Regulates voltage for automotive infotainment systems, lighting controls, and engine management units.
4. Medical devices: Offers precise voltage control for medical instruments, patient monitoring systems, and diagnostic equipment.
5. Audio/video equipment: Provides clean power for audio amplifiers, video processors, and digital-to-analog converters.

Detailed and Complete Alternative Models

1. LM1117-1.8: Similar low dropout voltage regulator with a TO-220 package.
2. ADP3339-1.8: Low noise, high accuracy voltage regulator available in a SOT-223 package.
3. MAX603CPA: Ultra-low quiescent current voltage regulator in an 8-pin DIP package.

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