LT1965ET-2.5#PBF

Product Overview

Category

The LT1965ET-2.5#PBF belongs to the category of voltage regulators.

Use

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

Characteristics

• The LT1965ET-2.5#PBF is a low dropout (LDO) linear regulator.
• It has a fixed output voltage of 2.5V.
• This device operates with a low quiescent current, making it suitable for battery-powered applications.
• It offers excellent line and load regulation, ensuring stable voltage output under varying conditions.
• The LT1965ET-2.5#PBF has thermal shutdown and current limit protection features.

Package

The LT1965ET-2.5#PBF comes in a small surface-mount package, which facilitates easy integration into compact electronic designs.

Essence

The essence of the LT1965ET-2.5#PBF lies in its ability to provide a regulated output voltage of 2.5V with low dropout and high efficiency.

Packaging/Quantity

This product is typically available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 2.8V to 20V
• Output Voltage: 2.5V
• Dropout Voltage: 300mV at 1A Load Current
• Quiescent Current: 40µA
• Line Regulation: ±0.02%
• Load Regulation: ±0.1%
• Maximum Output Current: 1.1A
• Thermal Shutdown Temperature: 150°C
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1965ET-2.5#PBF 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 ensures efficient regulation even with small input-output differentials.
• Excellent line and load regulation provide stable output voltage under varying conditions.
• Thermal shutdown protection prevents the device from overheating.
• Current limit protection safeguards against excessive current draw.

Advantages and Disadvantages

Advantages

• Low dropout voltage enables efficient power conversion.
• Excellent line and load regulation ensure stable voltage output.
• Thermal shutdown and current limit protection enhance device reliability.
• Small package size facilitates integration into space-constrained designs.

Disadvantages

• Fixed output voltage limits flexibility in certain applications requiring variable voltage levels.
• Maximum output current of 1.1A may not be sufficient for high-power applications.

Working Principles

The LT1965ET-2.5#PBF operates as a linear regulator, utilizing a pass transistor to regulate the output voltage. It compares the feedback voltage with a reference voltage and adjusts the pass transistor accordingly to maintain a constant output voltage of 2.5V. The low dropout voltage allows the device to operate efficiently even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The LT1965ET-2.5#PBF finds application in various electronic systems, including but not limited to: - Battery-powered devices such as portable audio players and handheld instruments. - Embedded systems requiring stable voltage supply. - Automotive electronics for voltage regulation in vehicle subsystems. - Industrial control systems where precise voltage regulation is essential. - Communication equipment for maintaining consistent power supply.

Detailed and Complete Alternative Models

1. LM1117-2.5: A popular alternative with similar specifications and a fixed output voltage of 2.5V.
2. LT1763-2.5: Another alternative offering low dropout voltage and a fixed 2.5V output.
3. ADP3339-2.5: An alternative with comparable characteristics and a fixed output voltage of 2.5V.

These alternatives provide similar functionality and can be considered based on specific design requirements.

In conclusion, the LT1965ET-2.5#PBF is a low dropout linear regulator that offers stable and efficient voltage regulation. Its small package size, thermal shutdown protection, and current limit features make it suitable for various applications. However, its fixed output voltage and limited maximum output current should be taken into consideration when selecting this device for specific designs.