LT1121ACS8-3.3#PBF

Product Overview

Category

LT1121ACS8-3.3#PBF belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Voltage regulation capability
• Compact size
• Low power consumption
• High efficiency

Package

LT1121ACS8-3.3#PBF comes in an 8-pin surface mount package.

Essence

The essence of LT1121ACS8-3.3#PBF is to provide a stable and regulated output voltage for various electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage: 3.3V
• Maximum Output Current: 500mA
• Dropout Voltage: 300mV
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)
4. BYPASS (Bypass Capacitor)
5. SHDN (Shutdown Control)
6. NC (No Connection)
7. NC (No Connection)
8. NC (No Connection)

Functional Features

• Voltage regulation: LT1121ACS8-3.3#PBF ensures a stable output voltage regardless of input voltage fluctuations.
• Overcurrent protection: It incorporates overcurrent protection to prevent damage to the circuitry.
• Thermal shutdown: The device shuts down automatically if the temperature exceeds the specified limit, preventing overheating.

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into various electronic devices.
• Low power consumption helps conserve energy.
• High efficiency ensures minimal power loss during voltage regulation.

Disadvantages

• Limited maximum output current may not be suitable for high-power applications.
• Dropout voltage of 300mV may result in a slight voltage drop across the regulator.

Working Principles

LT1121ACS8-3.3#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 stable output voltage, regardless of input voltage variations.

Detailed Application Field Plans

LT1121ACS8-3.3#PBF finds applications in various electronic devices, including: 1. Battery-powered devices: It regulates the voltage supplied by batteries to ensure consistent performance. 2. Microcontrollers: It provides a stable voltage supply for microcontrollers, preventing malfunctions due to voltage fluctuations. 3. Communication systems: It helps regulate the voltage in communication systems, ensuring reliable operation.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LT1121ACS8-3.3#PBF are: 1. LM1117-3.3: A popular voltage regulator with similar specifications and package. 2. MCP1703-3.3: Another voltage regulator offering comparable features and performance. 3. L78M33CDT: A widely used linear voltage regulator suitable for various applications.

In conclusion, LT1121ACS8-3.3#PBF is a voltage regulator known for its compact size, low power consumption, and high efficiency. It provides stable voltage output and finds applications in battery-powered devices, microcontrollers, and communication systems. While it has limitations in terms of maximum output current and dropout voltage, there are alternative models available in the market with similar functionalities.