MAX5008CUB-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-Efficiency Step-Up DC-DC Converter
• Package: 10-Lead µMAX®
• Essence: Voltage Regulator
• Packaging/Quantity: Tube / 75 pieces per tube

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: Adjustable from 4V to 28V
• Switching Frequency: 1.2MHz
• Maximum Output Current: 500mA
• Efficiency: Up to 92%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground
2. SW: Switch Node
3. FB: Feedback Input
4. EN: Enable Input
5. VCC: Supply Voltage Input
6. LX: Inductor Connection
7. PGND: Power Ground
8. SS/TR: Soft-Start/Tracking Input
9. COMP: Compensation Node
10. VOUT: Output Voltage

Functional Features

• High efficiency and low quiescent current
• Internal synchronous rectification for improved efficiency
• Adjustable output voltage through external resistors
• Soft-start and tracking capability for controlled startup
• Overcurrent and thermal shutdown protection
• Low-profile package for space-constrained applications

Advantages

• High efficiency results in reduced power consumption
• Wide input voltage range allows for versatile applications
• Compact package enables usage in small form factor devices
• Soft-start feature prevents excessive inrush current during startup
• Overcurrent and thermal shutdown protection enhance reliability

Disadvantages

• Limited maximum output current of 500mA
• Operating temperature range may not be suitable for extreme environments
• Requires external resistors for output voltage adjustment

Working Principles

The MAX5008CUB-T is a step-up DC-DC converter that utilizes a high-frequency switching regulator to efficiently boost the input voltage to a higher output voltage. It employs an internal synchronous rectifier to minimize power losses and improve overall efficiency. The output voltage can be adjusted by connecting external resistors to the feedback pin. The device also features soft-start functionality, which gradually ramps up the output voltage during startup to prevent excessive inrush current. Additionally, it incorporates overcurrent and thermal shutdown protection mechanisms to safeguard against potential faults.

Detailed Application Field Plans

The MAX5008CUB-T is commonly used in various applications where a higher output voltage is required from a lower input voltage source. Some typical application fields include:

1. Battery-powered devices: Portable electronics such as smartphones, tablets, and portable media players often require a higher voltage than the battery's nominal voltage. The MAX5008CUB-T can efficiently boost the battery voltage to meet the device's requirements.

2. Industrial equipment: Many industrial systems rely on different voltage levels for their operation. The MAX5008CUB-T can be employed to generate the necessary higher voltages for motor drives, sensors, and control circuits.

3. Automotive electronics: In automotive applications, the MAX5008CUB-T can be utilized to step up the vehicle's battery voltage to power various components like infotainment systems, lighting modules, and communication devices.

4. LED lighting: LED drivers often require a higher voltage than the available power supply. The MAX5008CUB-T can be used to drive LED strings by boosting the input voltage to the desired level.

Detailed and Complete Alternative Models

1. MAX1771: High-Efficiency Step-Up DC-DC Converter with Adjustable Output Voltage.
2. LT1308: Micropower High-Efficiency Step-Up DC-DC Converter.
3. TPS61220: 1.8V to 5.5V Input, 500mA Boost Converter with 2.7V to 5.5V Output.

These alternative models offer similar functionality and can be considered as substitutes for the MAX5008CUB-T in various applications.

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