LT1761MPS5-1.8#TRMPBF

Product Overview

Category

The LT1761MPS5-1.8#TRMPBF belongs to the category of voltage regulators.

Use

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

Characteristics

• Voltage Output: 1.8V
• Package Type: SOT-23
• Essence: Low Dropout Linear Regulator
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

The LT1761MPS5-1.8#TRMPBF has the following specifications:

• Input Voltage Range: 2.5V to 20V
• Output Current: Up to 100mA
• Dropout Voltage: 300mV at 100mA
• Line Regulation: ±0.02%
• Load Regulation: ±0.04%
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT1761MPS5-1.8#TRMPBF has a SOT-23 package with three pins:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)

Functional Features

• Low dropout voltage ensures stable output even when input voltage is close to the desired output voltage.
• Excellent line and load regulation characteristics provide consistent performance across varying conditions.
• Low quiescent current minimizes power consumption in standby or low-load situations.
• Thermal shutdown and current limit protection features safeguard the device from excessive heat and current.

Advantages and Disadvantages

Advantages

• Compact SOT-23 package allows for easy integration into space-constrained designs.
• Wide input voltage range enables compatibility with various power sources.
• Low dropout voltage ensures efficient power conversion.
• Excellent line and load regulation characteristics provide stable output voltage.
• Thermal shutdown and current limit protection enhance device reliability.

Disadvantages

• Limited output current capacity (up to 100mA) may not be suitable for high-power applications.
• SOT-23 package may require additional heat dissipation measures in certain scenarios.

Working Principles

The LT1761MPS5-1.8#TRMPBF is a low dropout linear regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor accordingly to maintain a stable output voltage. The dropout voltage is minimized to ensure efficient power conversion even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The LT1761MPS5-1.8#TRMPBF finds application in various electronic systems, including but not limited to:

1. Battery-powered devices: Provides regulated voltage for microcontrollers, sensors, and other components in portable electronics.
2. Automotive electronics: Ensures stable power supply for infotainment systems, lighting modules, and control units.
3. Industrial automation: Used in PLCs, motor drives, and control circuits to maintain consistent voltage levels.
4. Communication systems: Regulates voltage for RF modules, transceivers, and signal processing units.
5. Medical devices: Provides reliable power for medical instruments, patient monitoring systems, and implantable devices.

Detailed and Complete Alternative Models

1. LM1117-1.8: Similar low dropout linear regulator with a TO-220 package.
2. MCP1700-1802E/TO: Low dropout voltage regulator with a SOT-23 package.
3. ADP3339AKCZ-1.8RL7: Ultra-low dropout linear regulator with a SOT-223 package.

These alternative models offer similar functionality and can be considered as substitutes for the LT1761MPS5-1.8#TRMPBF in various applications.

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