LT3470AHDDB#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency step-down DC/DC converter - Wide input voltage range: 2.5V to 36V - Adjustable output voltage: 0.8V to 30V - Maximum output current: 1A - Low shutdown current: 10µA - Internal compensation - Fixed frequency operation: 500kHz - Thermal shutdown and current limit protection

Package: DFN-8 (3mm x 3mm)

Essence: The LT3470AHDDB#TRPBF is a high-efficiency step-down DC/DC converter designed for power management applications.

Packaging/Quantity: The LT3470AHDDB#TRPBF is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Input Voltage Range: 2.5V to 36V
• Output Voltage Range: 0.8V to 30V
• Maximum Output Current: 1A
• Switching Frequency: 500kHz
• Shutdown Current: 10µA
• Operating Temperature Range: -40°C to 125°C
• Package Type: DFN-8

Detailed Pin Configuration

The LT3470AHDDB#TRPBF has the following pin configuration:

1. VIN: Input voltage pin
2. SW: Switching node connection
3. GND: Ground reference
4. FB: Feedback pin for output voltage regulation
5. SS/TR: Soft-start/tracking pin
6. EN: Enable pin for turning on/off the device
7. VOUT: Output voltage pin
8. PGND: Power ground reference

Functional Features

• High efficiency step-down DC/DC conversion
• Wide input voltage range for versatile applications
• Adjustable output voltage to meet specific requirements
• Internal compensation simplifies external component count
• Fixed frequency operation ensures predictable performance
• Thermal shutdown and current limit protection enhance reliability

Advantages

• High efficiency conversion reduces power dissipation
• Wide input voltage range allows compatibility with various power sources
• Adjustable output voltage provides flexibility in system design
• Internal compensation simplifies circuit design and reduces component count
• Fixed frequency operation ensures stable and predictable performance
• Thermal shutdown and current limit protection enhance system reliability

Disadvantages

• Limited maximum output current of 1A may not be suitable for high-power applications
• DFN-8 package may require careful PCB layout considerations for optimal thermal performance

Working Principles

The LT3470AHDDB#TRPBF operates as a step-down DC/DC converter, converting a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to achieve high efficiency power conversion. The device regulates the output voltage by adjusting the duty cycle of the internal switch, which controls the energy transfer from the input to the output.

Detailed Application Field Plans

The LT3470AHDDB#TRPBF is commonly used in various power management applications, including but not limited to: - Battery-powered devices - Industrial control systems - Automotive electronics - Portable instruments - Distributed power systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3470AHDDB#TRPBF include: - LT3470BHDDB#TRPBF: Similar specifications, but with a different package type (DFN-10) - LT3470EHDDB#TRPBF: Higher maximum output current of 2A, otherwise similar specifications and package type (DFN-8) - LT3470FHDDB#TRPBF: Lower maximum output current of 500mA, otherwise similar specifications and package type (DFN-8)

Note: The above alternative models are provided for reference and may have slight differences in features and performance. It is recommended to consult the respective datasheets for detailed information.

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