LT1965IT-1.8#PBF

Product Overview

Category

The LT1965IT-1.8#PBF belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage Regulation: The LT1965IT-1.8#PBF provides a fixed output voltage of 1.8V.
• High Efficiency: This voltage regulator offers high efficiency, minimizing power dissipation.
• Low Dropout Voltage: The LT1965IT-1.8#PBF has a low dropout voltage, allowing it to operate with small input-output differentials.
• Low Noise: It exhibits low output noise, making it suitable for noise-sensitive applications.
• Thermal Shutdown: The device incorporates thermal shutdown protection to prevent damage due to excessive heat.

Package

The LT1965IT-1.8#PBF comes in a compact TO-220 package, which facilitates easy mounting on circuit boards.

Essence

The essence of the LT1965IT-1.8#PBF lies in its ability to provide a stable and regulated output voltage of 1.8V, ensuring reliable operation of electronic devices.

Packaging/Quantity

This product is typically available in reels or tubes, containing a specific quantity of units per package.

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage: 1.8V
• Maximum Output Current: 1.1A
• Dropout Voltage: 340mV at 1A Load
• Line Regulation: ±0.02%
• Load Regulation: ±0.1%
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1965IT-1.8#PBF has three pins:

1. Vin (Pin 1): Input voltage pin.
2. Vout (Pin 2): Output voltage pin.
3. GND (Pin 3): Ground pin.

Functional Features

• Voltage Regulation: The LT1965IT-1.8#PBF ensures a stable output voltage of 1.8V, regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting circuitry to protect the device and the connected load from excessive current.
• Short-Circuit Protection: The voltage regulator is equipped with short-circuit protection, preventing damage in case of a short circuit.
• Thermal Shutdown: If the temperature exceeds a safe threshold, the LT1965IT-1.8#PBF shuts down to prevent overheating.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power dissipation.
• Low dropout voltage allows operation with small input-output differentials.
• Compact TO-220 package facilitates easy mounting.
• Low output noise makes it suitable for noise-sensitive applications.
• Thermal shutdown protection prevents damage due to excessive heat.

Disadvantages

• Limited to fixed output voltage of 1.8V.
• Maximum output current limited to 1.1A.

Working Principles

The LT1965IT-1.8#PBF operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage of 1.8V. This is achieved by regulating the current flow through the device, compensating for variations in the input voltage and load conditions.

Detailed Application Field Plans

The LT1965IT-1.8#PBF finds applications in various electronic systems that require a stable 1.8V power supply. Some common application fields include:

1. Mobile Devices: It can be used to power low-voltage components in smartphones, tablets, and portable media players.
2. Embedded Systems: The voltage regulator is suitable for powering microcontrollers, sensors, and other components in embedded systems.
3. Industrial Automation: It can be employed in industrial control systems, PLCs (Programmable Logic Controllers), and motor drives.
4. Automotive Electronics: The LT1965IT-1.8#PBF can be utilized in automotive applications such as infotainment systems, navigation devices, and engine control units.

Detailed and Complete Alternative Models

1. LM1117-1.8: A popular alternative with similar specifications and a fixed output voltage of 1.8V.
2. LT1763-1.8: Another alternative offering a fixed 1.8V output voltage, with lower dropout voltage and higher maximum output current compared to the LT1965IT-1.8#PBF.
3. ADP3339-1.8: This alternative model provides a fixed 1.8V output voltage and features low dropout voltage and high accuracy.

These alternative models