LT3489EMS8E#TRPBF

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Step-Up DC-DC Converter
• Characteristics: High efficiency, compact package, wide input voltage range
• Package: MSOP-8
• Essence: Power management IC for portable devices
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 1.5V to 32V
• Output Voltage: Up to 34V
• Switching Frequency: 1.2MHz
• Operating Temperature Range: -40°C to 125°C
• Efficiency: Up to 92%

Detailed Pin Configuration

1. SW: Switch Node
2. GND: Ground
3. FB: Feedback Input
4. VIN: Input Voltage
5. VOUT: Output Voltage
6. SS/TR: Soft-Start/Tracking
7. EN/UVLO: Enable/Undervoltage Lockout
8. PG: Power Good Indicator

Functional Features

• Wide input voltage range allows for versatile applications
• High efficiency minimizes power loss and extends battery life
• Compact package enables space-constrained designs
• Soft-start feature prevents inrush current during startup
• Power good indicator enhances system reliability

Advantages and Disadvantages

Advantages

• Wide input voltage range
• High efficiency
• Compact package
• Power good indicator
• Soft-start feature

Disadvantages

• Limited maximum output current
• Sensitive to external noise in some applications

Working Principles

The LT3489EMS8E#TRPBF is a step-up DC-DC converter that utilizes a fixed frequency, current mode architecture to provide a regulated output voltage from a wide range of input voltages. The internal switch is capable of delivering an output voltage up to 34V, making it suitable for various battery-powered applications.

Detailed Application Field Plans

1. Portable Devices: Used to boost low battery voltages to power microcontrollers, sensors, and displays.
2. LED Backlighting: Provides a stable voltage source for driving LED backlight modules in LCD displays.
3. Industrial Equipment: Enables efficient power conversion in industrial automation and control systems.

Detailed and Complete Alternative Models

1. LT3467AEMS#PBF: Step-Up DC-DC Converter with similar input voltage range and package
2. LT3496EDD#PBF: Step-Up DC-DC Converter with higher output current capability and wider temperature range

In conclusion, the LT3489EMS8E#TRPBF is a versatile and efficient step-up DC-DC converter suitable for a wide range of portable and industrial applications. Its compact package, high efficiency, and wide input voltage range make it a valuable component in power management designs.

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