MAX1945SEUI+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX1945SEUI+ belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This product is primarily used for power supply and voltage regulation in various electronic devices and systems.

Characteristics

• High efficiency: The MAX1945SEUI+ offers excellent power conversion efficiency, minimizing energy loss during operation.
• Wide input voltage range: It can handle a broad range of input voltages, making it suitable for diverse applications.
• Compact package: The IC is housed in a small, surface-mount package, enabling space-efficient integration into electronic designs.
• Low power consumption: The MAX1945SEUI+ itself consumes minimal power, contributing to overall system energy efficiency.

Package and Quantity

The MAX1945SEUI+ is available in a compact 16-pin TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels containing a specified quantity of units.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 0.6V to V_IN
• Maximum Output Current: 1A
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1945SEUI+ features a 16-pin TSSOP package with the following pin configuration:

Pin 1: VIN Pin 2: GND Pin 3: SW Pin 4: FB Pin 5: EN Pin 6: COMP Pin 7: SS/TRK Pin 8: AGND Pin 9: PGND Pin 10: LX Pin 11: LX Pin 12: LX Pin 13: LX Pin 14: LX Pin 15: LX Pin 16: LX

Functional Features

The MAX1945SEUI+ offers the following functional features:

• Voltage regulation: It provides stable and adjustable output voltage, ensuring reliable power supply to connected devices.
• Current limiting: The IC incorporates current limit protection, preventing excessive current flow and safeguarding the system.
• Soft-start capability: The soft-start feature allows for gradual ramp-up of the output voltage, reducing stress on components during power-up.
• Overtemperature protection: The MAX1945SEUI+ includes built-in thermal shutdown circuitry, protecting it from overheating.

Advantages and Disadvantages

Advantages

• High efficiency power conversion
• Wide input voltage range
• Compact package for space-constrained designs
• Low power consumption

Disadvantages

• Limited maximum output current (1A)

Working Principles

The MAX1945SEUI+ operates based on a switching regulator topology. It utilizes high-frequency switching to efficiently convert the input voltage to the desired output voltage level. The internal control circuitry ensures stable and regulated output voltage, while various protection mechanisms safeguard against overcurrent and overtemperature conditions.

Application Field Plans

The MAX1945SEUI+ finds applications in various electronic systems, including but not limited to: - Portable consumer electronics - Battery-powered devices - Industrial automation equipment - Automotive electronics - IoT (Internet of Things) devices

Alternative Models

For similar power management requirements, alternative models to the MAX1945SEUI+ include: - MAX1946SEUI+ - MAX1947SEUI+ - MAX1948SEUI+ - MAX1949SEUI+

These alternatives offer comparable functionality and may suit specific design considerations or cost requirements.

In conclusion, the MAX1945SEUI+ is a highly efficient integrated circuit designed for power management applications. Its compact package, wide input voltage range, and various protection features make it suitable for diverse electronic systems. While it has a limited maximum output current, it offers excellent performance and reliability in its intended applications.