MAX17244ETERA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX17244ETERA+ is a highly efficient, low-power, step-down DC-DC converter designed for use in various electronic devices. It provides a regulated output voltage from a wide input voltage range, making it suitable for battery-powered applications.

Characteristics: - High efficiency conversion - Low quiescent current - Wide input voltage range - Adjustable output voltage - Compact package size

Package: The MAX17244ETERA+ is available in a small 8-pin TDFN package, which allows for easy integration into space-constrained designs.

Essence: This IC serves as a power management solution, enabling efficient voltage conversion and regulation in electronic devices.

Packaging/Quantity: The MAX17244ETERA+ is typically sold in reels containing 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: 0.6V to VIN
• Maximum Output Current: 1.5A
• Quiescent Current: 17µA (typical)
• Switching Frequency: 1MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX17244ETERA+ features the following pin configuration:

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| | --| VIN GND |-- Pin 1: Ground --| EN FB |-- Pin 2: Feedback --| LX SW |-- Pin 3: Switch --| PG VOUT|-- Pin 4: Output Voltage |___________| ```

Functional Features

1. High Efficiency Conversion: The MAX17244ETERA+ utilizes advanced control techniques to achieve high efficiency, minimizing power losses during voltage conversion.

2. Low Quiescent Current: With a low quiescent current of only 17µA, the IC helps conserve battery power in portable devices.

3. Wide Input Voltage Range: The wide input voltage range allows the IC to operate with various power sources, including batteries and DC power supplies.

4. Adjustable Output Voltage: The output voltage can be easily adjusted using external resistors, providing flexibility for different application requirements.

Advantages and Disadvantages

Advantages: - High efficiency conversion reduces power consumption - Low quiescent current prolongs battery life - Wide input voltage range enhances compatibility - Adjustable output voltage offers versatility

Disadvantages: - Limited maximum output current (1.5A) - Requires additional external components for operation

Working Principles

The MAX17244ETERA+ operates as a step-down DC-DC converter. It uses a switching regulator topology to efficiently convert the input voltage to a lower, regulated output voltage. The IC employs pulse-width modulation (PWM) control to regulate the output voltage based on feedback from the FB pin.

When enabled (EN pin high), the internal switch (SW) cycles on and off at a high frequency, controlling the energy transfer from the input to the output. The LX pin connects to an external inductor, which stores and releases energy during each switching cycle.

By adjusting the duty cycle of the switching signal, the IC maintains a stable output voltage, compensating for changes in load conditions and input voltage variations.

Detailed Application Field Plans

The MAX17244ETERA+ finds applications in various electronic devices, including but not limited to: - Portable consumer electronics - Wearable devices - IoT (Internet of Things) devices - Battery-powered systems - Industrial equipment

Its compact size, high efficiency, and low quiescent current make it particularly suitable for battery-powered applications where space and power consumption are critical.

Detailed and Complete Alternative Models

1. MAX17242ETERA+: Similar to the MAX17244ETERA+, but with a lower maximum output current of 1A.
2. MAX17243ETERA+: Offers higher maximum output current (2A) compared to the MAX17244ETERA+.
3. MAX17245ETERA+: Provides adjustable output voltage and higher maximum output current (3A).

These alternative models offer similar functionality with slight variations in specifications, allowing designers to choose the most suitable option based on their specific requirements.

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