MAX1809ETI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Step-Up DC-DC Converter
• Package: 28-pin TQFN
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 11V
• Output Voltage Range: Adjustable from 2.5V to 28V
• Switching Frequency: 1.2MHz
• Maximum Output Current: 600mA
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX1809ETI+T has a total of 28 pins. The pin configuration is as follows:

1. EN (Enable)
2. FB (Feedback)
3. SS/TR (Soft-Start/Tracking)
4. GND (Ground)
5. LX (Switch Node)
6. SW (Switch Node)
7. BST (Boost)
8. VCC (Supply Voltage)
9. AGND (Analog Ground)
10. PGND (Power Ground)
11. PGND (Power Ground)
12. PGND (Power Ground)
13. PGND (Power Ground)
14. PGND (Power Ground)
15. PGND (Power Ground)
16. PGND (Power Ground)
17. PGND (Power Ground)
18. PGND (Power Ground)
19. PGND (Power Ground)
20. PGND (Power Ground)
21. PGND (Power Ground)
22. PGND (Power Ground)
23. PGND (Power Ground)
24. PGND (Power Ground)
25. PGND (Power Ground)
26. PGND (Power Ground)
27. PGND (Power Ground)
28. PGND (Power Ground)

Functional Features

• High-efficiency step-up DC-DC converter
• Adjustable output voltage
• Soft-start and tracking functionality
• Overcurrent and overtemperature protection
• Low shutdown current
• Integrated compensation network

Advantages and Disadvantages

Advantages

• High efficiency, up to 95%
• Wide input voltage range
• Adjustable output voltage
• Integrated compensation network simplifies design
• Overcurrent and overtemperature protection ensures reliability
• Low shutdown current for power-saving applications

Disadvantages

• Limited maximum output current (600mA)
• Requires external components for operation

Working Principles

The MAX1809ETI+T is a high-efficiency step-up DC-DC converter that converts a lower input voltage to a higher output voltage. It utilizes a switching regulator topology to achieve high efficiency. The integrated compensation network simplifies the design process by eliminating the need for external compensation components.

The device operates by controlling the duty cycle of the internal switch to regulate the output voltage. The soft-start and tracking functionality ensure a smooth startup and accurate tracking of the output voltage during load changes. Overcurrent and overtemperature protection mechanisms safeguard the device and the connected circuitry.

Detailed Application Field Plans

The MAX1809ETI+T is commonly used in various applications where a higher output voltage is required from a lower input voltage. Some typical application fields include:

1. Battery-powered devices: The MAX1809ETI+T can be used to efficiently boost the battery voltage to power components that require a higher voltage, such as LCD displays or audio amplifiers.
2. Portable electronic devices: It can be employed in portable devices like smartphones, tablets, or portable media players to generate the necessary voltages for different subsystems.
3. Industrial equipment: The device finds applications in industrial equipment where a stable and adjustable voltage source is required for powering sensors, actuators, or control circuits.

Detailed and Complete Alternative Models

• MAX1771: Step-Up DC-DC Converter with higher maximum output current (1A)
• MAX619: Low-Power Step-Up DC-DC Converter with lower input voltage range (1.8V to 5.5V)
• MAX1724: High-Efficiency Step-Up DC-DC Converter with integrated power switch
• MAX668: Step-Up/Step-Down DC-DC Converter with adjustable output voltage range (-0.5V to +28V)

(Note: These alternative models are provided as examples and may not cover all possible alternatives.)

This entry provides an overview of the MAX1809ETI+T, including its category, use, characteristics, package, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.