LT1389BCS8-1.25#TRPBF

Product Overview

Category

LT1389BCS8-1.25#TRPBF 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: LT1389BCS8-1.25#TRPBF provides a regulated output voltage.
• Low dropout: It can operate with a small voltage difference between the input and output.
• Low quiescent current: The regulator consumes minimal current when not supplying load.
• Thermal shutdown protection: It has built-in protection against excessive heat.

Package

LT1389BCS8-1.25#TRPBF is available in an 8-pin surface mount package (SOIC-8).

Essence

The essence of LT1389BCS8-1.25#TRPBF lies in its ability to maintain a stable output voltage despite variations in input voltage or load conditions.

Packaging/Quantity

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

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.25V
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. VOUT: Regulated output voltage pin
4. NC: No connection
5. NC: No connection
6. NC: No connection
7. NC: No connection
8. EN: Enable pin for turning the regulator on/off

Functional Features

• Voltage Regulation: LT1389BCS8-1.25#TRPBF maintains a constant output voltage of 1.25V.
• Low Dropout: It can operate with a small voltage difference between the input and output, ensuring efficient power conversion.
• Low Quiescent Current: The regulator consumes minimal current when not supplying load, reducing power consumption.
• Thermal Shutdown Protection: It includes built-in protection to prevent damage due to excessive heat.

Advantages and Disadvantages

Advantages

• Stable Output Voltage: LT1389BCS8-1.25#TRPBF provides a reliable and consistent output voltage.
• Wide Input Voltage Range: It can accept a wide range of input voltages, making it versatile for various applications.
• Low Power Consumption: The low quiescent current ensures efficient power usage.
• Compact Package: The SOIC-8 package allows for easy integration into electronic circuits.

Disadvantages

• Limited Output Voltage Options: This specific model only provides a fixed output voltage of 1.25V, limiting its applicability in certain scenarios.
• Noisy Output: In some cases, LT1389BCS8-1.25#TRPBF may introduce noise into the output voltage, requiring additional filtering.

Working Principles

LT1389BCS8-1.25#TRPBF operates based on the principle of feedback control. It compares the output voltage to a reference voltage and adjusts the internal circuitry to maintain a stable output. By continuously monitoring and adjusting, it compensates for changes in input voltage and load conditions, ensuring a regulated output voltage.

Detailed Application Field Plans

LT1389BCS8-1.25#TRPBF finds application in various electronic systems where a stable voltage supply is crucial. Some common application fields include:

1. Battery-powered devices: It can regulate the voltage supplied by batteries, ensuring consistent performance.
2. Microcontrollers and digital circuits: LT1389BCS8-1.25#TRPBF provides a stable voltage source for reliable operation.
3. Communication systems: It helps maintain a constant voltage level in communication equipment, preventing signal degradation.

Detailed and Complete Alternative Models

1. LT1761ES5-1.25#TRMPBF: Similar to LT1389BCS8-1.25#TRPBF, but available in a smaller SOT-23 package.
2. LM1117MPX-1.25/NOPB: Another voltage regulator with a fixed output voltage of 1.25V, suitable for various applications.
3. ADP3339AKCZ-1.25RL7: A low dropout voltage regulator with a fixed 1.25V output, offering high accuracy and stability.

These alternative models provide similar functionality and can be considered as substitutes for LT1389BCS8-1.25#TRPBF depending on specific requirements.

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