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LT3580IDD
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: High Efficiency, Low Quiescent Current, Wide Input Voltage Range
- Package: 8-Lead DFN (Dual Flat No-Lead)
- Essence: Voltage Regulator
- Packaging/Quantity: Tape & Reel, 2500 units per reel
Specifications
- Input Voltage Range: 2.5V to 16V
- Output Voltage Range: Adjustable from 1.24V to 15V
- Switching Frequency: Up to 2MHz
- Quiescent Current: 40µA
- Maximum Output Current: 1.5A
- Operating Temperature Range: -40°C to 125°C
Pin Configuration
The LT3580IDD package consists of 8 pins:
- VIN: Input Voltage Pin
- SW: Switching Node Pin
- GND: Ground Pin
- FB: Feedback Pin
- VOUT: Output Voltage Pin
- SS/TR: Soft-Start/Tracking Pin
- SYNC: Synchronization Pin
- EN: Enable Pin
Functional Features
- High efficiency synchronous step-down DC/DC converter
- Wide input voltage range allows for versatile applications
- Adjustable output voltage provides flexibility
- Low quiescent current minimizes power consumption in standby mode
- Internal compensation simplifies external component count
- Soft-start and tracking functions for controlled startup and sequencing
- Synchronization capability for noise-sensitive applications
- Thermal shutdown and current limit protection features ensure safe operation
Advantages
- High efficiency conversion reduces power dissipation
- Wide input voltage range accommodates various power sources
- Adjustable output voltage suits different load requirements
- Low quiescent current extends battery life
- Compact package size saves board space
- Internal compensation simplifies design and reduces external components
Disadvantages
- Limited maximum output current of 1.5A may not be suitable for high-power applications
- Requires careful consideration of thermal management due to small package size
Working Principles
The LT3580IDD is a synchronous step-down DC/DC converter that utilizes a constant frequency, current mode architecture. It operates by converting a higher input voltage to a lower output voltage with high efficiency. The internal switches and control circuitry regulate the output voltage based on feedback from the FB pin.
During operation, the SW pin connects to the input voltage source, while the VIN pin provides the necessary power supply. The EN pin controls the enable/disable state of the device. The SS/TR pin allows for soft-start and tracking functions, ensuring controlled startup and sequencing. The SYNC pin enables synchronization with an external clock for noise-sensitive applications.
Detailed Application Field Plans
The LT3580IDD is commonly used in various applications, including:
- Battery-powered devices: Portable electronics, handheld instruments, and medical devices benefit from its low quiescent current and wide input voltage range.
- Industrial equipment: Powering sensors, actuators, and control systems in industrial automation.
- Automotive electronics: Providing regulated power for infotainment systems, lighting, and other automotive applications.
- Telecommunications: Voltage regulation for networking equipment, routers, and data centers.
- IoT devices: Enabling efficient power management in smart home devices, wearables, and connected sensors.
Detailed and Complete Alternative Models
- LT3579IDD: Similar specifications and features, but with a different pin configuration.
- LT3581IDD: Higher maximum output current of 2.5A, suitable for more demanding applications.
- LT3582IDD: Lower quiescent current of 20µA, ideal for ultra-low power applications.
These alternative models offer similar functionality and can be considered based on specific application requirements.
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技術ソリューションにおける LT3580IDD の適用に関連する 10 件の一般的な質問と回答をリストします。
Sure! Here are 10 common questions and answers related to the application of LT3580IDD:
Q: What is LT3580IDD? A: LT3580IDD is a high-efficiency, low-noise, dual-output DC/DC converter designed for use in various technical solutions.
Q: What is the input voltage range of LT3580IDD? A: The input voltage range of LT3580IDD is typically between 2.5V and 18V.
Q: What are the output voltage options provided by LT3580IDD? A: LT3580IDD provides two adjustable output voltages ranging from 1.8V to 24V.
Q: Can LT3580IDD operate with a single output? A: Yes, LT3580IDD can be configured to operate with a single output by connecting only one of the outputs and leaving the other unconnected.
Q: What is the maximum output current of LT3580IDD? A: The maximum output current of LT3580IDD is typically 1A per channel.
Q: Does LT3580IDD have built-in protection features? A: Yes, LT3580IDD includes features like overcurrent protection, thermal shutdown, and short-circuit protection to ensure safe operation.
Q: Can LT3580IDD be used in battery-powered applications? A: Yes, LT3580IDD is suitable for battery-powered applications as it has a wide input voltage range and low quiescent current.
Q: Is LT3580IDD suitable for automotive applications? A: Yes, LT3580IDD is designed to meet the requirements of automotive applications, including a wide input voltage range and robust protection features.
Q: Can LT3580IDD be used in both step-up and step-down configurations? A: Yes, LT3580IDD can be configured as a step-up (boost) converter or a step-down (buck) converter depending on the application requirements.
Q: Are there any evaluation boards available for LT3580IDD? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards for LT3580IDD, which can help in the prototyping and testing phase of your project.
Please note that the answers provided here are general and may vary based on specific application requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.