LT1121IS8-3.3#PBF

Product Overview

Category

The LT1121IS8-3.3#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 LT1121IS8-3.3#PBF provides a regulated output voltage of 3.3 volts.
• Low dropout: It has a low dropout voltage, allowing it to operate efficiently even when the input voltage is close to the desired output voltage.
• High accuracy: This voltage regulator offers high precision and accuracy in maintaining the output voltage within specified limits.
• Low quiescent current: It consumes minimal current when in standby mode, making it suitable for battery-powered applications.
• Thermal shutdown protection: The LT1121IS8-3.3#PBF includes built-in thermal shutdown protection, preventing damage due to excessive heat.

Package

The LT1121IS8-3.3#PBF comes in an S8 package, which is a surface-mount package with eight pins.

Essence

The essence of the LT1121IS8-3.3#PBF is its ability to provide a stable and regulated output voltage of 3.3 volts, making it ideal for various electronic applications.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage: 3.3V
• Dropout Voltage: 300mV (typical)
• Quiescent Current: 75µA (typical)
• Operating Temperature Range: -40°C to 125°C
• Package Type: S8

Detailed Pin Configuration

The LT1121IS8-3.3#PBF has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. BYPASS: Bypass capacitor pin
5. NC: Not connected pin
6. NC: Not connected pin
7. NC: Not connected pin
8. SHDN: Shutdown control pin

Functional Features

• Voltage regulation: The LT1121IS8-3.3#PBF maintains a stable output voltage of 3.3 volts, regardless of input voltage fluctuations.
• Low dropout: It can operate efficiently even when the input voltage is close to the desired output voltage, minimizing power loss.
• Thermal shutdown protection: The built-in thermal shutdown feature protects the device from overheating, ensuring its longevity and reliability.
• Low quiescent current: In standby mode, the LT1121IS8-3.3#PBF consumes minimal current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• High precision and accuracy in voltage regulation
• Low dropout voltage for efficient operation
• Built-in thermal shutdown protection
• Low quiescent current for power-saving applications

Disadvantages

• Limited output voltage options (fixed at 3.3V)
• Sensitive to excessive heat

Working Principles

The LT1121IS8-3.3#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 constant output voltage of 3.3 volts. This is achieved through a combination of active components and feedback loops that continuously monitor and regulate the voltage levels.

Detailed Application Field Plans

The LT1121IS8-3.3#PBF finds application in various electronic systems, including but not limited to: - Battery-powered devices - Portable electronic devices - Embedded systems - Communication equipment - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LT1121IS8-3.3#PBF include: - LM1117-3.3: A popular voltage regulator with similar specifications and features. - MCP1702-3302E: Another voltage regulator offering a regulated output voltage of 3.3 volts. - AMS1117-3.3: A low dropout voltage regulator suitable for various applications.

These alternative models provide similar functionality and can be used as substitutes depending on specific requirements and availability.

Word count: 530 words