LT3481EMSE#PBF

Product Overview

Category

LT3481EMSE#PBF belongs to the category of integrated circuits (ICs).

Use

The LT3481EMSE#PBF is primarily used as a step-up DC/DC converter. It provides a high efficiency solution for boosting lower voltage inputs to higher voltage outputs.

Characteristics

• High efficiency conversion
• Wide input voltage range
• Adjustable output voltage
• Low quiescent current
• Internal compensation
• Programmable soft-start
• Thermal shutdown

Package

The LT3481EMSE#PBF is available in a small MSOP-16E package, which offers compactness and ease of integration into various electronic systems.

Essence

The essence of LT3481EMSE#PBF lies in its ability to efficiently convert lower voltage inputs to higher voltage outputs, making it suitable for applications where power amplification is required.

Packaging/Quantity

The LT3481EMSE#PBF is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: Up to 34V
• Switching Frequency: 400kHz
• Quiescent Current: 40µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

1. SW: Switch pin for connecting the inductor.
2. GND: Ground reference for the IC.
3. FB: Feedback pin for setting the output voltage.
4. VIN: Input voltage pin.
5. VCC: Supply voltage pin for internal circuitry.
6. SS/TR: Soft-start/Tracking pin for controlling the startup behavior.
7. SYNC: Synchronization pin for external clock synchronization.
8. PGND: Power ground reference for the IC.
9. VOUT: Output voltage pin.

Functional Features

• High efficiency conversion: The LT3481EMSE#PBF offers high efficiency, minimizing power losses during voltage conversion.
• Wide input voltage range: It can accept a wide range of input voltages, making it versatile for various applications.
• Adjustable output voltage: The output voltage can be easily adjusted to meet specific requirements.
• Low quiescent current: The IC has a low quiescent current, reducing power consumption when not in use.
• Internal compensation: The internal compensation simplifies the design process and improves stability.
• Programmable soft-start: Soft-start functionality allows for controlled startup and prevents excessive inrush current.
• Thermal shutdown: The IC includes thermal shutdown protection to prevent damage from overheating.

Advantages and Disadvantages

Advantages

• High efficiency conversion leads to reduced power losses.
• Wide input voltage range provides flexibility in application.
• Adjustable output voltage allows customization.
• Low quiescent current minimizes power consumption.
• Internal compensation simplifies design and improves stability.
• Programmable soft-start prevents excessive inrush current.
• Thermal shutdown protects against overheating.

Disadvantages

• Limited maximum output voltage (up to 34V).
• Requires external components for operation.
• May require additional circuitry for specific applications.

Working Principles

The LT3481EMSE#PBF operates as a step-up DC/DC converter using a switching regulator topology. It utilizes an inductor, a diode, and a capacitor to efficiently convert lower input voltages to higher output voltages. The internal control circuitry regulates the switching frequency and duty cycle to achieve the desired output voltage. The feedback pin (FB) is used to set the output voltage, while other pins control features such as soft-start and synchronization.

Detailed Application Field Plans

The LT3481EMSE#PBF finds applications in various fields, including but not limited to: - Battery-powered devices - Portable electronic devices - Automotive electronics - Industrial equipment - LED lighting systems

Detailed and Complete Alternative Models

1. LT3481AEMSE#PBF: Similar to LT3481EMSE#PBF with extended temperature range (-40°C to 150°C).
2. LT3481HVMSE#PBF: Higher voltage version with an output voltage range up to 60V.
3. LT3481IMSE#PBF: Lower quiescent current version for ultra-low power applications.

These alternative models offer similar functionality with slight variations to cater to specific requirements.

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