LT1965IQ-3.3#TRPBF

Product Overview

Category

The LT1965IQ-3.3#TRPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage Output: 3.3V
• Package Type: TO-263
• Essence: Low Dropout Linear Regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

The LT1965IQ-3.3#TRPBF has the following specifications:

• Input Voltage Range: 1.8V to 20V
• Dropout Voltage: 300mV at 1A Load Current
• Output Voltage Accuracy: ±2%
• Maximum Output Current: 1.1A
• Quiescent Current: 40µA
• Line Regulation: 0.02%/V
• Load Regulation: 0.04%/A
• Ripple Rejection: 70dB
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1965IQ-3.3#TRPBF 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

The LT1965IQ-3.3#TRPBF offers the following functional features:

• Low dropout voltage: The regulator can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• High output current capability: It can provide up to 1.1A of continuous output current.
• Low quiescent current: The regulator consumes only 40µA of current when no load is connected.
• Excellent line and load regulation: It maintains a stable output voltage even with varying input voltage or load conditions.
• Good ripple rejection: The regulator suppresses noise and ripple present in the input voltage.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient regulation.
• High output current capability allows for powering various electronic components.
• Low quiescent current minimizes power consumption.
• Excellent line and load regulation provide stable voltage output.
• Good ripple rejection reduces noise interference.

Disadvantages

• Limited to a fixed output voltage of 3.3V.
• Requires external components for proper operation.

Working Principles

The LT1965IQ-3.3#TRPBF is a low dropout linear regulator that uses a PNP pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage to adjust the pass transistor's resistance, maintaining a constant output voltage despite variations in input voltage and load conditions.

Detailed Application Field Plans

The LT1965IQ-3.3#TRPBF finds applications in various fields, including:

1. Battery-powered devices: It can be used to regulate voltage in portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial automation: It is suitable for powering sensors, actuators, and control circuits in industrial automation systems.
3. Automotive electronics: The regulator can be employed in automotive applications to stabilize voltage for microcontrollers, sensors, and other electronic components.
4. Communication systems: It is useful in telecommunications equipment, routers, and network switches to ensure stable voltage supply.

Detailed and Complete Alternative Models

Some alternative models to the LT1965IQ-3.3#TRPBF include:

1. LM1117-3.3: A popular 3.3V linear voltage regulator with similar specifications.
2. ADP3339: A low dropout linear regulator offering adjustable output voltage.
3. TPS7A3301: A high-performance 3.3V regulator with ultra-low dropout voltage.

These alternative models provide similar functionality and can be considered as substitutes for the LT1965IQ-3.3#TRPBF in various applications.

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