MAX4940ACTN+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX4940ACTN+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for power management and control.

Characteristics

• Integrated circuit with advanced power management capabilities
• High efficiency and low power consumption
• Compact size for space-constrained applications

Package

MAX4940ACTN+ is available in a small outline package (SOT23) which ensures easy integration into various electronic systems.

Essence

The essence of MAX4940ACTN+ lies in its ability to efficiently manage and control power in electronic devices, ensuring optimal performance and energy efficiency.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1A
• Operating Temperature Range: -40°C to +85°C
• Switching Frequency: 1MHz

Pin Configuration

The MAX4940ACTN+ has the following pin configuration:

```

---

| | --| VCC GND |-- Power Supply Pins --| EN FB |-- Control and Feedback Pins --| SW LX |-- Switching and Load Pins |___________| ```

Functional Features

• Integrated synchronous step-down DC-DC converter
• Adjustable output voltage through feedback pin (FB)
• Low dropout voltage for improved efficiency
• Overcurrent and overtemperature protection
• Soft-start feature for controlled power-up

Advantages and Disadvantages

Advantages

• High efficiency power management
• Compact size for space-constrained applications
• Wide input voltage range for versatility
• Overcurrent and overtemperature protection for enhanced safety

Disadvantages

• Limited maximum output current (1A)
• Operating temperature range may not be suitable for extreme environments

Working Principles

The MAX4940ACTN+ operates as a synchronous step-down DC-DC converter. It takes an input voltage within the specified range and efficiently converts it to a lower, adjustable output voltage. The feedback pin (FB) allows users to set the desired output voltage. The integrated circuit ensures high efficiency by minimizing power losses during the conversion process. Additionally, it incorporates various protection features such as overcurrent and overtemperature protection to safeguard the device and surrounding components.

Detailed Application Field Plans

The MAX4940ACTN+ finds applications in various electronic devices that require efficient power management and control. Some potential application fields include:

1. Mobile devices: Smartphones, tablets, and wearable devices can benefit from the compact size and high efficiency of this IC.
2. IoT devices: Internet of Things (IoT) devices often operate on limited power sources, making the MAX4940ACTN+ ideal for extending battery life and optimizing power usage.
3. Industrial automation: Control systems and sensors in industrial automation can utilize this IC for reliable and efficient power management.
4. Automotive electronics: In-car entertainment systems, navigation devices, and other automotive electronics can benefit from the small form factor and energy efficiency of this product.

Detailed and Complete Alternative Models

1. MAX4940BCTN+: Similar to MAX4940ACTN+, but with a different package (SOT23-6).
2. MAX4940DCTN+: Higher maximum output current (2A), suitable for applications requiring higher power levels.
3. MAX4940ECTN+: Extended operating temperature range (-40°C to +125°C), suitable for harsh environments.

These alternative models provide options based on specific requirements such as package type, output current, and operating temperature range.

In conclusion, the MAX4940ACTN+ is an integrated circuit that offers efficient power management and control capabilities. Its compact size, high efficiency, and various protection features make it suitable for a wide range of electronic devices. With its adjustable output voltage and versatile input voltage range, this IC provides flexibility in design and application.