MAX17550AUB+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX17550AUB+ belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power management applications, providing efficient voltage regulation and control in various electronic devices.

Characteristics

• High efficiency: The MAX17550AUB+ offers high conversion efficiency, minimizing power losses during voltage regulation.
• Wide input voltage range: It can handle a wide range of input voltages, making it suitable for diverse applications.
• Low quiescent current: The device exhibits low power consumption when in standby or idle mode.
• Adjustable output voltage: The output voltage can be easily adjusted to meet specific requirements.

Package

The MAX17550AUB+ is available in a small 10-pin µMAX package, which ensures compactness and ease of integration into electronic systems.

Essence

The essence of the MAX17550AUB+ lies in its ability to efficiently regulate and control voltage, ensuring stable and reliable power supply to connected devices.

Packaging/Quantity

This product is typically sold in reels, with each reel containing a specified quantity of MAX17550AUB+ ICs. The exact quantity may vary depending on the manufacturer's packaging specifications.

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 0.9 x VIN
• Maximum Output Current: 1.5A
• Quiescent Current: 17µA (typical)
• Switching Frequency: 500kHz (fixed)

Detailed Pin Configuration

The MAX17550AUB+ features the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground reference pin
3. FB: Feedback pin for output voltage regulation
4. EN: Enable pin for turning the device on/off
5. SS/TR: Soft-start/Tracking pin for controlling startup behavior
6. PGND: Power ground reference pin
7. LX: Switching node pin for connecting the inductor
8. BST: Boost pin for connecting an external capacitor
9. VOUT: Output voltage pin
10. COMP: Compensation pin for stability optimization

Functional Features

• Integrated power MOSFETs: The MAX17550AUB+ incorporates internal power MOSFETs, reducing the need for external components and simplifying the design.
• Adjustable soft-start: The soft-start feature allows for controlled startup, preventing excessive inrush current and ensuring system stability.
• Overcurrent protection: The device includes overcurrent protection, safeguarding against excessive load currents and potential damage.
• Thermal shutdown: In case of excessive temperature, the MAX17550AUB+ activates thermal shutdown to prevent overheating and protect the device.

Advantages and Disadvantages

Advantages

• High efficiency leads to reduced power losses.
• Wide input voltage range enables versatile applications.
• Compact package facilitates easy integration.
• Adjustable output voltage provides flexibility.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• Fixed switching frequency may not be suitable for all designs.

Working Principles

The MAX17550AUB+ operates as a synchronous buck converter, converting a higher input voltage to a lower output voltage with high efficiency. It utilizes pulse-width modulation (PWM) techniques to regulate the output voltage based on feedback from the FB pin. The integrated power MOSFETs handle the switching operation, while the control circuitry ensures stable and accurate voltage regulation.

Detailed Application Field Plans

The MAX17550AUB+ finds applications in various fields, including but not limited to: 1. Industrial automation systems 2. Automotive electronics 3. Telecommunications equipment 4. Consumer electronics 5. Power supplies

Detailed and Complete Alternative Models

1. MAX17551AUB+: Similar to the MAX17550AUB+, but with a higher maximum output current of 2A.
2. MAX17552AUB+: Offers adjustable switching frequency for more design flexibility.
3. MAX17553AUB+: Provides additional protection features such as overvoltage and undervoltage lockout.

These alternative models offer similar functionality to the MAX17550AUB+ while catering to specific requirements or providing enhanced capabilities.

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