MAX1802EHJ+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High Efficiency, Low Quiescent Current, Small Package Size
• Package: 32-Pin Thin QFN
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 5.5V
• Output Voltage Range: 1.8V to 3.6V
• Output Current: Up to 500mA
• Quiescent Current: 40µA (typical)
• Switching Frequency: 1.2MHz (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1802EHJ+ has a total of 32 pins. The pin configuration is as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VIN | Input Voltage | | 2 | GND | Ground | | 3 | EN | Enable Control | | 4 | FB | Feedback Voltage | | 5 | VOUT | Output Voltage | | ... | ... | ... |

Functional Features

• High efficiency voltage regulation for portable devices
• Low quiescent current for extended battery life
• Integrated power MOSFETs for compact design
• Overcurrent and thermal protection for enhanced safety
• Soft-start feature to minimize inrush current

Advantages and Disadvantages

Advantages

• High efficiency operation saves power
• Compact package size allows for space-constrained designs
• Wide input voltage range for versatile applications
• Integrated protection features enhance reliability

Disadvantages

• Limited output current compared to some other voltage regulators
• Higher cost compared to traditional linear regulators

Working Principles

The MAX1802EHJ+ is a step-down (buck) voltage regulator. It takes an input voltage within the range of 2.5V to 5.5V and efficiently converts it to a lower, regulated output voltage between 1.8V and 3.6V. The integrated power MOSFETs and control circuitry ensure high efficiency and low quiescent current operation.

Detailed Application Field Plans

The MAX1802EHJ+ is commonly used in various portable electronic devices, such as smartphones, tablets, digital cameras, and portable media players. Its compact size, high efficiency, and low quiescent current make it suitable for battery-powered applications where power efficiency and extended battery life are crucial.

Detailed and Complete Alternative Models

• MAX1801EHJ+: Similar specifications and features, but with a different pin configuration.
• MAX1803EHJ+: Higher output current capability, suitable for applications requiring higher power.

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