MCP19123T-E/MQ

Product Overview

Category

The MCP19123T-E/MQ belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used in power supply systems, where it provides efficient and precise control over various parameters such as voltage, current, and power delivery.

Characteristics

• High efficiency: The MCP19123T-E/MQ offers high conversion efficiency, minimizing power losses during operation.
• Precise regulation: It provides accurate control over output voltage and current, ensuring stable and reliable power supply.
• Flexible configuration: The device allows for easy customization of power management parameters to suit specific application requirements.

Package

The MCP19123T-E/MQ is available in a compact and industry-standard package, making it suitable for integration into various electronic systems.

Essence

At its core, the MCP19123T-E/MQ is a versatile power management IC that combines a controller, driver, and MOSFETs to deliver efficient and controlled power supply solutions.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each reel/tube containing a specified quantity of MCP19123T-E/MQ ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 4.5V to 32V
• Output Voltage Range: 0.8V to 24V
• Maximum Output Current: 3A
• Switching Frequency: Up to 2MHz
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MCP19123T-E/MQ features a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VDD - Power Supply Voltage
2. VIN - Input Voltage
3. PGND - Power Ground
4. SW - Switch Node
5. LX - Inductor Connection
6. FB - Feedback Voltage
7. COMP - Compensation Node
8. CS - Current Sense
9. SS - Soft-Start Control
10. EN - Enable Pin
11. RT - Oscillator Timing Resistor
12. CT - Oscillator Timing Capacitor
13. VREF - Reference Voltage Output
14. AGND - Analog Ground
15. PWM - Pulse Width Modulation Output
16. VOUT - Output Voltage

Functional Features

The MCP19123T-E/MQ offers several notable functional features:

1. Adaptive Drive Control: The device dynamically adjusts the gate drive voltage to optimize switching performance and minimize power losses.
2. Programmable Power Parameters: Users can easily configure various power management parameters, such as output voltage, current limit, and switching frequency, to meet specific application requirements.
3. Integrated Protection Mechanisms: The IC incorporates built-in protection features like overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown to safeguard the system from potential faults or failures.
4. Soft-Start Functionality: The soft-start feature ensures a controlled and gradual increase in output voltage during startup, preventing excessive inrush currents.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power consumption and improved energy efficiency.
• Precise regulation ensures stable and reliable power supply for sensitive electronic components.
• Flexible configuration allows for customization based on specific application needs.
• Integrated protection mechanisms enhance system reliability and durability.
• Soft-start functionality prevents excessive inrush currents, protecting the system and connected devices.

Disadvantages

• Limited maximum output current of 3A may not be suitable for high-power applications.
• Complex pin configuration may require careful attention during circuit design and layout.

Working Principles

The MCP19123T-E/MQ operates based on a pulse width modulation (PWM) control scheme. It utilizes feedback from the output voltage to adjust the duty cycle of the PWM signal, thereby regulating the power delivered to the load. The adaptive drive control optimizes the switching performance, ensuring efficient power conversion.

Detailed Application Field Plans

The MCP19123T-E/MQ finds applications in various fields, including but not limited to:

1. Power Supplies: It can be used in DC-DC converters, AC-DC converters, and other power supply systems requiring precise voltage and current regulation.
2. LED Lighting: The IC enables efficient and dimmable LED driver circuits for lighting applications.
3. Battery Charging: It can be employed in battery charging systems, providing controlled and efficient charging for different battery chemistries.
4. Industrial Automation: The MCP19123T-E/MQ is suitable for power management in industrial automation systems, where reliable and stable power supply is crucial.

Detailed and Complete Alternative Models

1. Texas Instruments TPS54332: A highly integrated synchronous buck converter with similar features and performance characteristics. 2