MIC2171WT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
• Package: TO-220-5
• Essence: Voltage Regulator
• Packaging/Quantity: Tape & Reel / 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 1.25V to 55V
• Output Current: Up to 1.5A
• Quiescent Current: 120µA
• Switching Frequency: 500kHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MIC2171WT has a TO-220-5 package with the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. FB: Feedback Pin
4. EN: Enable Pin
5. VOUT: Output Voltage

Functional Features

• High Efficiency: The MIC2171WT offers high efficiency due to its low quiescent current and synchronous rectification.
• Wide Input Voltage Range: It can handle input voltages ranging from 4.5V to 60V, making it suitable for various applications.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors connected to the feedback pin (FB).
• Protection Features: The IC includes protection against overcurrent, overtemperature, and undervoltage conditions.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power dissipation. - Wide input voltage range allows for versatile applications. - Adjustable output voltage provides flexibility. - Protection features enhance reliability.

Disadvantages: - Limited output current of up to 1.5A may not be sufficient for high-power applications. - The TO-220-5 package might require additional heat sinking for certain operating conditions.

Working Principles

The MIC2171WT is a voltage regulator that uses a buck topology to step down the input voltage to a lower, regulated output voltage. It employs a pulse-width modulation (PWM) control scheme to achieve high efficiency. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain a stable output. The enable pin (EN) allows for easy on/off control of the regulator.

Detailed Application Field Plans

The MIC2171WT is commonly used in various applications, including:

1. Industrial Power Supplies
2. Automotive Electronics
3. Telecommunications Equipment
4. Battery-Powered Systems
5. LED Lighting

Detailed and Complete Alternative Models

1. LM2596: Buck Converter IC with Adjustable Output Voltage
2. LT1763: Low Dropout Regulator with High PSRR
3. TPS54331: Synchronous Step-Down DC-DC Converter
4. ADP2303: High Efficiency, Step-Down DC-DC Converter
5. MAX15062: Wide Input Voltage Range, Step-Down DC-DC Converter

(Note: These alternative models are provided as examples and not an exhaustive list.)

This entry provides an overview of the MIC2171WT, including its product category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.