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LTC3621IDCB-2
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: - High efficiency step-down DC/DC converter - Wide input voltage range: 2.25V to 5.5V - Adjustable output voltage range: 0.6V to VIN - Maximum output current: 2A - Low quiescent current: 20µA - Internal synchronous rectification for high efficiency - Soft-start and current limit protection - Thermal shutdown
Package: DFN-8 (3mm x 3mm)
Essence: The LTC3621IDCB-2 is a high-efficiency step-down DC/DC converter designed for power management applications.
Packaging/Quantity: The LTC3621IDCB-2 is available in tape and reel packaging with a quantity of 2500 units per reel.
Specifications
- Input Voltage Range: 2.25V to 5.5V
- Output Voltage Range: 0.6V to VIN
- Maximum Output Current: 2A
- Quiescent Current: 20µA
- Efficiency: Up to 95%
- Operating Temperature Range: -40°C to 125°C
Pin Configuration
The LTC3621IDCB-2 has the following pin configuration:
```
| | --| VIN SW |-- --| GND FB |-- --| EN VOUT|-- |___________| ```
- VIN: Input voltage
- SW: Switching node
- GND: Ground
- FB: Feedback voltage
- EN: Enable pin
- VOUT: Output voltage
Functional Features
- High efficiency: The LTC3621IDCB-2 utilizes internal synchronous rectification to achieve high efficiency, resulting in reduced power loss.
- Adjustable output voltage: The output voltage can be adjusted within a wide range, providing flexibility for various applications.
- Soft-start and current limit protection: The device incorporates soft-start and current limit protection mechanisms to ensure safe operation under different load conditions.
- Thermal shutdown: The LTC3621IDCB-2 includes thermal shutdown protection to prevent damage due to excessive temperature.
Advantages and Disadvantages
Advantages: - High efficiency operation - Wide input voltage range - Adjustable output voltage - Compact package size - Soft-start and current limit protection
Disadvantages: - Limited maximum output current (2A)
Working Principles
The LTC3621IDCB-2 is a step-down DC/DC converter that operates by converting a higher input voltage to a lower output voltage. It utilizes a switching regulator topology to efficiently transfer power from the input to the output. The internal synchronous rectification minimizes power loss during the conversion process. The device also incorporates various protection features such as soft-start, current limit, and thermal shutdown to ensure reliable operation.
Detailed Application Field Plans
The LTC3621IDCB-2 can be used in various power management applications, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial equipment - Automotive electronics - IoT devices
Detailed and Complete Alternative Models
Some alternative models to the LTC3621IDCB-2 with similar functionality include: - LT8610ABEMSE#PBF - TPS54332DDAR - ADP2384ACPZ-R7
These alternative models offer comparable features and can be considered based on specific application requirements.
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Énumérez 10 questions et réponses courantes liées à l'application de LTC3621IDCB-2 dans les solutions techniques
Sure! Here are 10 common questions and answers related to the application of LTC3621IDCB-2 in technical solutions:
Q1: What is LTC3621IDCB-2? A1: LTC3621IDCB-2 is a specific model of a high-efficiency, low-quiescent current synchronous buck regulator.
Q2: What is the input voltage range for LTC3621IDCB-2? A2: The input voltage range for LTC3621IDCB-2 is typically between 2.7V and 5.5V.
Q3: What is the output voltage range for LTC3621IDCB-2? A3: The output voltage range for LTC3621IDCB-2 can be adjusted from 0.6V to VIN.
Q4: What is the maximum output current of LTC3621IDCB-2? A4: The maximum output current of LTC3621IDCB-2 is typically 2A.
Q5: What is the purpose of LTC3621IDCB-2 in technical solutions? A5: LTC3621IDCB-2 is commonly used as a power management solution to efficiently regulate voltage levels in various electronic devices.
Q6: Can LTC3621IDCB-2 be used in battery-powered applications? A6: Yes, LTC3621IDCB-2 is suitable for battery-powered applications due to its low quiescent current and high efficiency.
Q7: Does LTC3621IDCB-2 have built-in protection features? A7: Yes, LTC3621IDCB-2 includes features like overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.
Q8: Is LTC3621IDCB-2 easy to integrate into existing designs? A8: Yes, LTC3621IDCB-2 is available in a compact package and offers a simple external component count, making it relatively easy to integrate into existing designs.
Q9: Can LTC3621IDCB-2 operate in a wide temperature range? A9: Yes, LTC3621IDCB-2 can operate in a temperature range of -40°C to 125°C, making it suitable for various environments.
Q10: Are there any application notes or reference designs available for LTC3621IDCB-2? A10: Yes, the manufacturer provides application notes and reference designs that can help users understand and implement LTC3621IDCB-2 in their technical solutions.
Please note that these answers are general and may vary depending on specific requirements and use cases. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.