IRU1261CM

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short circuit current limiting - Overcurrent protection

Package: CMOS SOT-23-5

Essence: The IRU1261CM is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The IRU1261CM is available in a standard reel packaging with 3000 units per reel.

Specifications

• Input Voltage Range: 2.7V to 6.5V
• Output Voltage Range: 1.2V to 5.5V
• Dropout Voltage: 200mV at 100mA
• Output Current: Up to 1A
• Quiescent Current: 120µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The IRU1261CM has the following pin configuration:

1. GND (Ground)
2. VIN (Input Voltage)
3. VOUT (Output Voltage)
4. ADJ (Adjustment Pin)
5. NC (No Connection)

Functional Features

• Low Dropout Voltage: The IRU1261CM exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1A, the IRU1261CM can power a wide range of electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted within the specified range using an external resistor divider connected to the ADJ pin.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature.
• Short Circuit Current Limiting: The IRU1261CM limits the output current in case of a short circuit, protecting both the IC and the connected devices.
• Overcurrent Protection: It provides protection against excessive current flow, ensuring the safety of the circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation - High output current capability for powering various devices - Adjustable output voltage allows flexibility in design - Thermal shutdown protection prevents overheating - Short circuit current limiting protects the circuit - Overcurrent protection enhances safety

Disadvantages: - Limited input voltage range (2.7V to 6.5V) - Quiescent current may affect battery life in low-power applications

Working Principles

The IRU1261CM is based on a CMOS process technology, which enables low dropout voltage and high output current capability. It utilizes a feedback mechanism to regulate the output voltage. The ADJ pin allows the user to adjust the output voltage by connecting an external resistor divider. The IC incorporates various protection features like thermal shutdown, short circuit current limiting, and overcurrent protection to ensure safe operation.

Detailed Application Field Plans

The IRU1261CM can be used in a wide range of applications, including but not limited to: - Battery-powered devices - Portable electronic devices - Automotive electronics - Industrial control systems - Power management modules - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the IRU1261CM are: - LM1117-ADJ - LT1763-ADJ - MCP1700-ADJ - TPS79601-ADJ - MAX603-ADJ

These alternatives provide comparable voltage regulation capabilities and come in various package options to suit different design requirements.

Word count: 413 words