LTC1844ES5-1.5#TRM

Product Overview

Category

The LTC1844ES5-1.5#TRM 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 LTC1844ES5-1.5#TRM provides a stable output voltage, ensuring reliable operation of connected devices.
• Low dropout voltage: It has a low dropout voltage, allowing it to operate efficiently even when the input voltage is close to the desired output voltage.
• Small package size: The LTC1844ES5-1.5#TRM comes in a compact SOT-23 package, making it suitable for space-constrained applications.
• Low quiescent current: It has a low quiescent current, minimizing power consumption when the load is light.

Package and Quantity

The LTC1844ES5-1.5#TRM is available in a SOT-23 package. It is typically sold in reels or tubes containing a specific quantity, such as 3000 units per reel.

Specifications

• Input Voltage Range: 2.5V to 6V
• Output Voltage: 1.5V
• Dropout Voltage: 200mV at 100mA
• Quiescent Current: 30µA
• Load Regulation: ±0.5%
• Line Regulation: ±0.3%
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LTC1844ES5-1.5#TRM 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

• Voltage Regulation: The LTC1844ES5-1.5#TRM maintains a stable output voltage of 1.5V, regardless of variations in the input voltage or load conditions.
• Low Dropout Voltage: With a dropout voltage of only 200mV at 100mA, this regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Current Limit Protection: The LTC1844ES5-1.5#TRM incorporates current limit protection, preventing excessive current flow and protecting connected devices.
• Thermal Shutdown: In case of excessive temperature, the regulator automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• Compact size allows for easy integration into space-constrained designs.
• Low quiescent current minimizes power consumption.
• Excellent voltage regulation ensures stable operation of connected devices.
• Current limit protection safeguards against overcurrent situations.
• Thermal shutdown feature protects against overheating.

Disadvantages

• Limited output voltage options (only 1.5V in this model).
• Not suitable for high-power applications due to its low current handling capability.

Working Principles

The LTC1844ES5-1.5#TRM operates as a linear voltage regulator. It uses a pass transistor to regulate the output voltage based on the difference between the input and desired output voltage. By adjusting the resistance within the regulator, it maintains a constant output voltage despite changes in the input voltage or load conditions.

Application Field Plans

The LTC1844ES5-1.5#TRM finds applications in various electronic systems, including but not limited to: - Battery-powered devices - Portable consumer electronics - IoT devices - Embedded systems - Automotive electronics

Alternative Models

Here are some alternative models that offer similar functionality:

1. LM1117-1.5: This voltage regulator provides a fixed output voltage of 1.5V and is available in various package options.
2. LT1763-1.5: A low dropout linear regulator with a fixed 1.5V output voltage, suitable for space-constrained applications.
3. MCP1701-1502E/TO: Another 1.5V fixed output voltage regulator, offered in a TO-92 package.

These alternative models can be considered based on specific requirements and design constraints.

In conclusion, the LTC1844ES5-1.5#TRM is a compact and efficient voltage regulator that provides stable output voltage regulation. Its low dropout voltage, low quiescent current, and built-in protection features make it suitable for a wide range of electronic applications.