MCP1642B-18I/MC

Introduction

The MCP1642B-18I/MC is a voltage boost regulator that belongs to the category of integrated circuits. It is commonly used in various electronic devices to efficiently step up and regulate voltage levels. This entry provides an overview of the basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models of the MCP1642B-18I/MC.

Basic Information Overview

• Category: Integrated Circuit
• Use: Voltage Boost Regulator
• Characteristics: Efficient voltage stepping and regulation
• Package: DFN-8 (2x3)
• Essence: Step-up voltage regulation
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 0.65V to 5.5V
• Output Voltage Range: 1.8V
• Output Current: Up to 500mA
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +125°C
• Efficiency: Up to 96%

Detailed Pin Configuration

The MCP1642B-18I/MC has a total of 8 pins arranged as follows: 1. VIN (Pin 1) - Input Voltage 2. SW (Pin 2) - Switch Node 3. GND (Pin 3) - Ground 4. FB (Pin 4) - Feedback Voltage 5. EN (Pin 5) - Enable Pin 6. SS/TRK (Pin 6) - Soft Start/Tracking 7. VOUT (Pin 7) - Output Voltage 8. PG (Pin 8) - Power Good Indicator

Functional Features

• High Efficiency: Provides up to 96% efficiency, minimizing power loss.
• Wide Input Voltage Range: Operates from 0.65V to 5.5V, making it suitable for various applications.
• Internal Compensation: Simplifies design and reduces external component count.
• Power Good Indicator: Monitors the output voltage, enhancing system reliability.

Advantages and Disadvantages

Advantages

• High efficiency
• Wide input voltage range
• Internal compensation for simplified design

Disadvantages

• Limited to output voltage of 1.8V
• Requires careful consideration of input voltage range compatibility

Working Principles

The MCP1642B-18I/MC operates by converting a lower input voltage to a higher output voltage using a boost topology. When enabled, the internal control circuitry regulates the switching of the integrated MOSFET to step up the input voltage to the desired output level. The feedback mechanism ensures stable output voltage regulation.

Detailed Application Field Plans

The MCP1642B-18I/MC is well-suited for various battery-powered applications such as portable electronics, IoT devices, and handheld instruments. Its ability to efficiently boost low input voltages to a fixed 1.8V output makes it ideal for powering microcontrollers, sensors, and other low-power components in these applications.

Detailed and Complete Alternative Models

• MCP1642B: Similar boost regulator with adjustable output voltage
• MCP16251: Step-up DC-DC converter with higher output current capability
• MCP1662: Synchronous boost regulator with different package options

In conclusion, the MCP1642B-18I/MC is a highly efficient voltage boost regulator designed for a wide range of battery-powered applications. Its compact package, high efficiency, and internal compensation make it a versatile choice for designers seeking to optimize power management in their systems.

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