MAX1676EUB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, low-power, step-up DC-DC converter
• Package: 10-pin µMAX® package
• Essence: Voltage regulator and power management solution
• Packaging/Quantity: Available in tape and reel packaging, quantity varies

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 3.3V to 28V
• Switching Frequency: 1.2MHz
• Maximum Output Current: 600mA
• Efficiency: Up to 90%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1676EUB has a 10-pin µMAX® package with the following pin configuration:

1. VOUT: Output voltage pin
2. GND: Ground pin
3. LX: Inductor connection pin
4. FB: Feedback pin for output voltage regulation
5. EN: Enable pin for turning the device on/off
6. SS/TR: Soft-start/Tracking pin for controlling startup behavior
7. VIN: Input voltage pin
8. PGND: Power ground pin
9. SW: Switching node pin
10. VCC: Supply voltage pin

Functional Features

• High efficiency and low-power operation
• Step-up DC-DC conversion
• Adjustable output voltage
• Overcurrent protection
• Thermal shutdown protection
• Soft-start and tracking capabilities
• Enable/disable control

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input and output voltage range allows for versatile applications - Compact package size for space-constrained designs - Overcurrent and thermal protection ensure device safety

Disadvantages: - Limited maximum output current of 600mA - Requires external components for operation - Higher cost compared to non-integrated solutions

Working Principles

The MAX1676EUB is a step-up DC-DC converter that efficiently converts a lower input voltage to a higher output voltage. It utilizes a switching regulator topology to achieve high efficiency. The device regulates the output voltage by adjusting the duty cycle of the internal switch, which controls the energy transfer from the input to the output.

When enabled, the MAX1676EUB starts converting the input voltage to the desired output voltage. It continuously monitors the feedback pin (FB) to maintain the output voltage within the specified range. The soft-start/ tracking pin (SS/TR) allows for controlled startup behavior, reducing inrush current during power-up.

The device also incorporates overcurrent protection, shutting down the output in case of excessive load current. Additionally, it features thermal shutdown protection to prevent damage due to high temperatures.

Detailed Application Field Plans

The MAX1676EUB finds applications in various fields, including:

1. Battery-powered devices: Provides efficient power management for portable electronics such as smartphones, tablets, and wearables.
2. Industrial equipment: Enables voltage conversion and regulation in industrial control systems, sensors, and instrumentation.
3. Automotive electronics: Used in automotive applications like infotainment systems, lighting control, and power supply modules.
4. IoT devices: Supports power management in Internet of Things (IoT) devices, ensuring optimal energy utilization.

Detailed and Complete Alternative Models

1. MAX1675EUB: Similar to MAX1676EUB but with a fixed output voltage of 5V.
2. MAX1677EUB: Step-up DC-DC converter with a higher maximum output current of 1A.
3. MAX1678EUB: Step-up DC-DC converter with adjustable output voltage and higher efficiency.

These alternative models offer different features and specifications to cater to specific application requirements.

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