MAX8903BETI+T

Product Overview

Category

MAX8903BETI+T belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a power management IC in various electronic devices.

Characteristics

• High efficiency power management
• Low quiescent current
• Wide input voltage range
• Multiple output channels
• Overvoltage and overcurrent protection

Package

MAX8903BETI+T is available in a small 28-pin TQFN package.

Essence

The essence of MAX8903BETI+T lies in its ability to efficiently manage power distribution in electronic devices, ensuring optimal performance and protection.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Output Voltage Range: Adjustable from 0.6V to VIN
• Number of Output Channels: 4
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VOUT1: Output Channel 1
2. VOUT2: Output Channel 2
3. VOUT3: Output Channel 3
4. VOUT4: Output Channel 4
5. GND: Ground
6. EN: Enable Pin
7. VIN: Input Voltage
8. FB1: Feedback Pin for Channel 1
9. FB2: Feedback Pin for Channel 2
10. FB3: Feedback Pin for Channel 3
11. FB4: Feedback Pin for Channel 4
12. PGND: Power Ground
13. BST: Boost Converter Input
14. LX: Switching Node
15. SS: Soft-Start Pin
16. PG: Power Good Indicator
17. VCC: Supply Voltage for Internal Circuitry
18. AGND: Analog Ground
19. ILIM1: Current Limit Setting for Channel 1
20. ILIM2: Current Limit Setting for Channel 2
21. ILIM3: Current Limit Setting for Channel 3
22. ILIM4: Current Limit Setting for Channel 4
23. THERM: Thermal Shutdown Indicator
24. CLK: Clock Input
25. SYNC: Synchronization Input
26. MODE: Mode Selection Pin
27. SS/TRK: Soft-Start/Tracking Control
28. NC: No Connection

Functional Features

• High-efficiency step-down converters
• Overvoltage and overcurrent protection
• Soft-start and tracking control
• Power good indicator
• Thermal shutdown protection
• Synchronization capability

Advantages and Disadvantages

Advantages

• High efficiency power management
• Wide input voltage range
• Multiple output channels for versatile applications
• Overvoltage and overcurrent protection ensures device safety
• Soft-start feature prevents inrush current

Disadvantages

• Limited number of output channels (4)
• Relatively high quiescent current compared to some alternatives

Working Principles

MAX8903BETI+T operates by converting the input voltage to multiple regulated output voltages using high-efficiency step-down converters. It incorporates various protection mechanisms, such as overvoltage and overcurrent protection, to safeguard connected devices. The soft-start feature helps prevent excessive inrush current during startup. Synchronization capability allows for coordination with other power management components.

Detailed Application Field Plans

MAX8903BETI+T finds applications in a wide range of electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Wearable devices - IoT devices - Industrial equipment

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MAX8903BETI+T include: - MAX8902AETI+ - MAX8904CETI+ - MAX8905AETI+

These alternatives can be considered based on specific requirements and design constraints.

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