MAX771ESA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, low-power, step-up DC-DC converter
• Package: SOIC-8
• Essence: Voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.6V to 5.5V
• Output Voltage Range: 2.7V to 5.5V
• Maximum Output Current: 500mA
• Switching Frequency: 1.2MHz
• Efficiency: Up to 96%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX771ESA+T has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | EN | Enable Pin | | 2 | GND | Ground | | 3 | SW | Switch Pin | | 4 | FB | Feedback Pin| | 5 | LX | Inductor Pin| | 6 | VOUT | Output Pin | | 7 | VIN | Input Pin | | 8 | NC | No Connection|

Functional Features

• High efficiency step-up DC-DC converter
• Low quiescent current
• Adjustable output voltage
• Overcurrent and overtemperature protection
• Soft-start function for controlled startup
• Shutdown mode for power saving

Advantages and Disadvantages

Advantages: - High efficiency leads to longer battery life - Wide input voltage range allows for versatile applications - Small package size enables compact designs - Overcurrent and overtemperature protection ensures device safety

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Non-adjustable switching frequency may not meet specific requirements

Working Principles

The MAX771ESA+T is a step-up DC-DC converter that converts a low input voltage to a higher output voltage. It utilizes a high-efficiency switch-mode architecture to achieve this conversion. The device operates by controlling the duty cycle of an internal switch to regulate the output voltage. It also incorporates various protection features to ensure safe operation.

Detailed Application Field Plans

The MAX771ESA+T is commonly used in portable electronic devices, such as smartphones, tablets, and wearable devices. It is particularly useful in battery-powered applications where efficient power management is crucial. The device can be employed to boost the battery voltage to power various components, such as microcontrollers, sensors, and wireless modules.

Alternative Models

1. MAX772ESA+T: Similar specifications and pin configuration, but with adjustable switching frequency.
2. MAX773ESA+T: Higher maximum output current (up to 1A), but slightly lower efficiency.
3. MAX774ESA+T: Lower quiescent current, suitable for ultra-low power applications.

These alternative models provide options based on specific requirements and trade-offs between different parameters.

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