LT1963AIFE#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Reverse battery protection - Short-circuit current limit

Package: TO-220-5 (Through-Hole)

Essence: The LT1963AIFE#TRPBF is a low dropout voltage regulator designed to provide a regulated output voltage even when the input voltage is very close to the desired output voltage.

Packaging/Quantity: The LT1963AIFE#TRPBF is available in a TO-220-5 package. It is typically sold in reels or tubes containing a specific quantity of units, depending on the supplier.

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage Range: 1.21V to 19.5V
• Dropout Voltage: 300mV at 1.5A
• Maximum Output Current: 1.5A
• Line Regulation: 0.015% typical
• Load Regulation: 0.1% typical
• Quiescent Current: 1.5mA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT1963AIFE#TRPBF has five pins arranged as follows:

_______ | | IN | | OUT |_______| | | | ADJ GND

• IN: Input voltage pin
• OUT: Output voltage pin
• ADJ: Adjust pin for setting the output voltage
• GND: Ground pin

Functional Features

1. Low Dropout Voltage: The LT1963AIFE#TRPBF has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is very close to the desired output voltage.

2. High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can handle high current loads.

3. Adjustable Output Voltage: The output voltage can be adjusted using an external resistor divider connected to the ADJ pin.

4. Thermal Shutdown Protection: The LT1963AIFE#TRPBF includes thermal shutdown protection, which prevents the device from overheating and getting damaged.

5. Reverse Battery Protection: This voltage regulator is designed to withstand reverse battery connections without any damage.

6. Short-Circuit Current Limit: It incorporates a short-circuit current limit feature that protects the device and the load in case of a short circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for demanding applications - Adjustable output voltage provides flexibility - Thermal shutdown protection prevents overheating - Reverse battery protection enhances reliability - Short-circuit current limit protects the device and load

Disadvantages: - None identified

Working Principles

The LT1963AIFE#TRPBF operates as a linear voltage regulator. It uses a pass transistor to control the output voltage based on the feedback received from the ADJ pin. The difference between the reference voltage and the feedback voltage is amplified and used to adjust the pass transistor's conduction, maintaining a stable output voltage.

Detailed Application Field Plans

The LT1963AIFE#TRPBF is commonly used in various applications, including but not limited to: - Power supplies for microcontrollers and other digital circuits - Battery-powered devices requiring regulated voltages - Automotive electronics - Industrial control systems - Audio amplifiers - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LT1963AIFE#TRPBF are: - LM317 - LM1117 - LT1086 - ADP3339 - TPS7A4700

These models offer similar voltage regulation capabilities and features, but it is recommended to review their datasheets for specific details and suitability for the intended application.

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