MAX1748EUE+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX1748EUE+ belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

• The MAX1748EUE+ is a highly efficient step-down DC-DC converter.
• It operates with a wide input voltage range, making it suitable for various power supply designs.
• This IC offers high efficiency and low quiescent current, resulting in reduced power consumption.
• It provides excellent load and line regulation, ensuring stable output voltage under different operating conditions.

Package

The MAX1748EUE+ is available in a 16-pin TSSOP package.

Essence

The essence of the MAX1748EUE+ lies in its ability to efficiently convert higher input voltages to lower output voltages, while maintaining stability and minimizing power loss.

Packaging/Quantity

The MAX1748EUE+ is typically sold in reels or tubes, containing a specific quantity of ICs per package. Please refer to the manufacturer's specifications for detailed packaging information.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 0.8V to 90% of VIN
• Maximum Output Current: 1A
• Switching Frequency: 500kHz (fixed)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1748EUE+ features the following pin configuration:

1. VIN: Input Voltage
2. GND: Ground
3. FB: Feedback Voltage
4. EN: Enable Control
5. SS/TR: Soft-Start/Tracking
6. SYNC: Synchronization Input
7. LX: Switch Node
8. PGND: Power Ground
9. VCC: Supply Voltage
10. VCC: Supply Voltage
11. VCC: Supply Voltage
12. VCC: Supply Voltage
13. VCC: Supply Voltage
14. VCC: Supply Voltage
15. VCC: Supply Voltage
16. VCC: Supply Voltage

Functional Features

• High efficiency step-down DC-DC conversion.
• Wide input voltage range for versatile power supply designs.
• Excellent load and line regulation for stable output voltage.
• Low quiescent current for reduced power consumption.
• Overcurrent and thermal protection for enhanced reliability.

Advantages and Disadvantages

Advantages

• High efficiency operation
• Wide input voltage range
• Stable output voltage under varying conditions
• Low power consumption
• Built-in protection features

Disadvantages

• Limited maximum output current (1A)
• Fixed switching frequency

Working Principles

The MAX1748EUE+ utilizes a pulse-width modulation (PWM) control scheme to regulate the output voltage. It employs an internal power MOSFET switch to efficiently step down the input voltage. The feedback loop continuously adjusts the duty cycle of the switch to maintain the desired output voltage, compensating for load and line variations.

Detailed Application Field Plans

The MAX1748EUE+ finds applications in various fields, including but not limited to: - Battery-powered devices - Industrial equipment - Automotive electronics - Telecommunications systems - Consumer electronics

Detailed and Complete Alternative Models

1. MAX1749EUE+: Similar to MAX1748EUE+, but with higher maximum output current (2A).
2. MAX1750EUE+: Similar to MAX1748EUE+, but with adjustable output voltage.
3. MAX1751EUE+: Similar to MAX1748EUE+, but with higher input voltage range (up to 36V).

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

In conclusion, the MAX1748EUE+ is a highly efficient step-down DC-DC converter used in power management applications. With its wide input voltage range, stable output voltage, and low power consumption, it provides an effective solution for various electronic devices. However, it has limitations in terms of maximum output current and fixed switching frequency. Nonetheless, it offers reliable performance and is widely used in battery-powered devices, industrial equipment, automotive electronics, telecommunications systems, and consumer electronics. Alternative models such as MAX1749EUE+, MAX1750EUE+, and MAX1751EUE+ provide additional options to suit different application needs.