MCP1642B-33I/MS

Product Overview

Category

The MCP1642B-33I/MS belongs to the category of voltage boost regulators.

Use

It is primarily used for boosting input voltage levels to a higher output voltage level.

Characteristics

• Input Voltage Range: 0.65V to 5.5V
• Output Voltage Range: 1.8V to 5.5V
• Maximum Output Current: 500mA
• Efficiency: Up to 96%
• Switching Frequency: 500kHz (fixed)
• Operating Temperature Range: -40°C to +85°C

Package

The MCP1642B-33I/MS is available in a small MSOP-10 package.

Essence

The essence of the MCP1642B-33I/MS lies in its ability to efficiently boost low input voltages to higher output voltages, making it suitable for various applications.

Packaging/Quantity

This product is typically packaged in reels and comes in quantities of 3,000 units per reel.

Specifications

• Input Voltage Range: 0.65V to 5.5V
• Output Voltage Range: 1.8V to 5.5V
• Maximum Output Current: 500mA
• Switching Frequency: 500kHz (fixed)
• Shutdown Current: 0.1µA (typical)
• Quiescent Current: 19µA (typical)
• Start-Up Voltage: 0.65V (typical)
• Efficiency: Up to 96%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MCP1642B-33I/MS has the following pin configuration:

1. VIN: Input Voltage Pin
2. SW: Switch Node Pin
3. GND: Ground Pin
4. FB: Feedback Voltage Pin
5. EN: Enable Pin
6. VOUT: Output Voltage Pin
7. PGND: Power Ground Pin
8. SS/TR: Soft-Start/Tracking Pin
9. NC: No Connection
10. VDD: Supply Voltage Pin

Functional Features

1. Wide Input Voltage Range: The MCP1642B-33I/MS can accept input voltages ranging from 0.65V to 5.5V, making it compatible with various power sources.
2. High Efficiency: With an efficiency of up to 96%, this voltage boost regulator minimizes power losses and maximizes energy conversion.
3. Fixed Switching Frequency: The device operates at a fixed switching frequency of 500kHz, ensuring stable and predictable performance.
4. Low Shutdown Current: The MCP1642B-33I/MS has a low shutdown current of 0.1µA, reducing power consumption during standby or idle periods.
5. Enable Pin Control: The EN pin allows for easy on/off control of the regulator, enabling power-saving functionality.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for compatibility with various power sources.
• High efficiency minimizes power losses and maximizes energy conversion.
• Small package size (MSOP-10) enables space-saving designs.
• Enable pin control provides flexibility in power management.

Disadvantages

• Maximum output current limited to 500mA, which may not be sufficient for high-power applications.
• Fixed switching frequency may not be adjustable for specific requirements.

Working Principles

The MCP1642B-33I/MS is a voltage boost regulator that utilizes a synchronous rectifier topology. It operates by converting a lower input voltage to a higher output voltage using an internal switch and inductor. The device employs pulse width modulation (PWM) to control the switch, regulating the output voltage based on feedback from the FB pin. The high switching frequency ensures efficient power conversion, while the enable pin allows for easy on/off control.

Detailed Application Field Plans

The MCP1642B-33I/MS finds applications in various fields, including:

1. Battery-Powered Devices: It can be used to boost the battery voltage to power microcontrollers, sensors, and other low-power components.
2. Portable Electronics: The regulator is suitable for boosting input voltages from USB ports or rechargeable batteries to power portable devices like smartphones, tablets, and wearables.
3. IoT Devices: It can be employed in IoT devices that require higher voltage levels for wireless communication modules, sensors, and data processing units.
4. Automotive Electronics: The MCP1642B-33I/MS can be utilized in automotive applications to step up lower voltages to power infotainment systems, lighting modules, and other electronic components.

Detailed and Complete Alternative Models

1. MCP1642B-30I/MS: Similar to the MCP1642B-33I/MS, but with an