MAX1758EAI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, step-down DC-DC converter
• Package: 28-pin SSOP (Shrink Small Outline Package)
• Essence: Voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 60V
• Output Voltage Range: 0.8V to 93% of VIN
• Maximum Output Current: 3A
• Switching Frequency: 500kHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1758EAI+T has a total of 28 pins. The pin configuration is as follows:

1. VCC
2. GND
3. FB
4. EN
5. SYNC
6. SS/TRK
7. AGND
8. PGND
9. LX
10. LX
11. LX
12. LX
13. LX
14. LX
15. LX
16. LX
17. LX
18. LX
19. LX
20. LX
21. LX
22. LX
23. LX
24. LX
25. LX
26. LX
27. LX
28. LX

Functional Features

• High efficiency conversion of input voltage to output voltage.
• Wide input voltage range allows for versatile applications.
• Adjustable output voltage through feedback pin (FB).
• Enable pin (EN) for easy on/off control.
• Synchronization pin (SYNC) for external clock synchronization.
• Soft-start/tracking pin (SS/TRK) for controlled startup.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Wide input voltage range allows for compatibility with various power sources. - Adjustable output voltage provides flexibility in different applications. - Enable pin enables easy control of the device. - Synchronization and soft-start/tracking pins enhance functionality.

Disadvantages: - Limited maximum output current of 3A may not be suitable for high-power applications. - The SSOP package may require specialized equipment for soldering.

Working Principles

The MAX1758EAI+T is a step-down DC-DC converter that utilizes a high-frequency switching regulator to efficiently convert an input voltage to a lower output voltage. It employs a pulse-width modulation (PWM) control scheme to regulate the output voltage. The feedback pin (FB) monitors the output voltage and adjusts the duty cycle of the internal switch to maintain the desired output voltage. The enable pin (EN) allows for easy on/off control of the device.

Detailed Application Field Plans

The MAX1758EAI+T is commonly used in various applications, including but not limited to:

1. Battery-powered devices: Provides efficient power conversion for portable electronics such as smartphones, tablets, and wearable devices.
2. Automotive systems: Suitable for powering automotive infotainment systems, lighting modules, and other low-voltage components.
3. Industrial equipment: Used in industrial automation, robotics, and control systems where reliable and efficient power management is crucial.
4. Telecommunications: Enables efficient power conversion in telecom infrastructure equipment, base stations, and network switches.

Detailed and Complete Alternative Models

1. MAX1759EAI+T: Similar to MAX1758EAI+T but with a higher maximum output current of 5A.
2. MAX1760EAI+T: Step-down DC-DC converter with integrated power MOSFETs for higher efficiency.
3. MAX1761EAI+T: Low quiescent current, high-efficiency step-down DC-DC converter for battery-powered applications.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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