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LTC3614IUDD
IC REG BUCK ADJ 4A 24QFN
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規格
| Part Status | Obsolete |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 2.25V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 5.5V |
| Current - Output | 4A |
| Frequency - Switching | 300kHz ~ 4MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 24-WFQFN Exposed Pad |
| Supplier Device Package | 24-QFN (3x5) |
| Base Product Number | LTC3614 |
概述
Description
The LTC3614IUDD is a high-efficiency monolithic synchronous step-down DC/DC converter designed by Analog Devices. It is capable of delivering up to 4A of continuous output current from a 2.25V to 5.5V input supply, making it suitable for applications requiring compact power solutions with high efficiency. The device operates with a fixed frequency and features peak current mode control for fast transient response and stability. It also includes a programmable output voltage, set via external resistors, and provides a power-good signal to indicate successful regulation.
Key features include low quiescent current in low-load conditions, burst mode operation to enhance efficiency at light loads, and thermal shutdown for protection. The LTC3614IUDD is housed in a compact 4mm x 4mm QFN package, making it suitable for space-constrained applications. It is commonly used in telecommunications, data communications, and general-purpose power supply designs.
Key features include low quiescent current in low-load conditions, burst mode operation to enhance efficiency at light loads, and thermal shutdown for protection. The LTC3614IUDD is housed in a compact 4mm x 4mm QFN package, making it suitable for space-constrained applications. It is commonly used in telecommunications, data communications, and general-purpose power supply designs.
Features
The LTC3614IUDD is a high-efficiency, 4 MHz synchronous step-down regulator from Analog Devices. Some of its key features include:
1. Power Supply: Operates from a 2.25V to 5.5V input voltage range and delivers an output voltage as low as 0.6V.
2. Output Current: Capable of providing up to 4A continuous output current.
3. Efficiency: High efficiency at light loads due to its Burst Mode operation, which reduces power loss.
4. Frequency: Switching frequency is adjustable from 400 kHz to 4 MHz, allowing for compact solution size.
5. Low Dropout: Very low dropout operation, extending battery life in portable applications.
6. Thermal Management: Comes with a thermal shutdown feature to prevent overheating.
7. Protection: Features include overcurrent protection and soft-start to minimize inrush current.
8. Package: Available in a compact, thermally enhanced 20-lead 3mm × 4mm QFN package.
These features make the LTC3614IUDD suitable for portable electronics, embedded systems, and other applications requiring efficient power management in a compact form factor.
1. Power Supply: Operates from a 2.25V to 5.5V input voltage range and delivers an output voltage as low as 0.6V.
2. Output Current: Capable of providing up to 4A continuous output current.
3. Efficiency: High efficiency at light loads due to its Burst Mode operation, which reduces power loss.
4. Frequency: Switching frequency is adjustable from 400 kHz to 4 MHz, allowing for compact solution size.
5. Low Dropout: Very low dropout operation, extending battery life in portable applications.
6. Thermal Management: Comes with a thermal shutdown feature to prevent overheating.
7. Protection: Features include overcurrent protection and soft-start to minimize inrush current.
8. Package: Available in a compact, thermally enhanced 20-lead 3mm × 4mm QFN package.
These features make the LTC3614IUDD suitable for portable electronics, embedded systems, and other applications requiring efficient power management in a compact form factor.
Package
The LTC3614IUDD is a DC/DC step-down regulator from Analog Devices, available in a 32-lead QFN (Quad Flat No-Lead) package. The QFN package is designed for high-efficiency thermal performance, offering a compact footprint suitable for space-constrained applications.
Pinout
The LTC3614IUDD is a high-efficiency, monolithic synchronous step-down DC/DC converter from Analog Devices. It is designed to deliver up to 4A of continuous output current. The device is housed in a 32-lead (5mm × 5mm) QFN package.
Key functions of the LTC3614 include:
- Input voltage range from 2.25V to 5.5V, making it suitable for single cell Li-Ion applications, as well as 3.3V and 5V systems.
- Output voltage range from 0.6V to 5V.
- High efficiency due to its synchronous rectification architecture.
- Programmable frequency from 400kHz to 4MHz, allowing for optimization between efficiency and component size.
- Internal compensation to simplify design and reduce external components.
- Current mode operation for fast transient response and good loop stability.
- Soft-start capability to prevent inrush currents during startup.
- Power good output to indicate when the output voltage is in regulation.
These features make the LTC3614 suitable for various applications, including telecom, server, and industrial systems.
Key functions of the LTC3614 include:
- Input voltage range from 2.25V to 5.5V, making it suitable for single cell Li-Ion applications, as well as 3.3V and 5V systems.
- Output voltage range from 0.6V to 5V.
- High efficiency due to its synchronous rectification architecture.
- Programmable frequency from 400kHz to 4MHz, allowing for optimization between efficiency and component size.
- Internal compensation to simplify design and reduce external components.
- Current mode operation for fast transient response and good loop stability.
- Soft-start capability to prevent inrush currents during startup.
- Power good output to indicate when the output voltage is in regulation.
These features make the LTC3614 suitable for various applications, including telecom, server, and industrial systems.
Manufacturer
The LTC3614IUDD is manufactured by Analog Devices, Inc. Analog Devices is a multinational company that specializes in the design, manufacturing, and marketing of a broad range of integrated circuits (ICs) and semiconductor devices. The company is known for its high-performance analog, mixed-signal, and digital signal processing (DSP) technologies. These products are used in various industries, including communications, automotive, industrial, healthcare, and consumer electronics. By focusing on innovation and technology development, Analog Devices has established itself as a leading player in the semiconductor industry.
Application
The LTC3614IUDD is a high-efficiency, monolithic synchronous step-down regulator. Its application areas include powering microprocessors, FPGAs, ASICs, and DSPs in communication systems, computing systems, data storage, and networking equipment. It is also used in distributed power systems and industrial applications due to its compact size and ability to deliver high current efficiently. The device's wide input voltage range and programmable frequency make it suitable for various power management tasks.
Equivalent
The LTC3614IUDD is a high-efficiency, monolithic synchronous step-down regulator. Equivalent products include:
1. Texas Instruments TPS54622: A 6-A, synchronous step-down converter.
2. Analog Devices ADP2389: A 15-A, synchronous step-down DC-DC regulator.
3. Maxim Integrated MAX17504: A high-efficiency, 3.3V to 60V, 25µA IQ, synchronous step-down converter.
These alternatives offer similar functionalities but may differ in features like voltage range, current capacity, or package type. Always check the datasheets for specific differences.
1. Texas Instruments TPS54622: A 6-A, synchronous step-down converter.
2. Analog Devices ADP2389: A 15-A, synchronous step-down DC-DC regulator.
3. Maxim Integrated MAX17504: A high-efficiency, 3.3V to 60V, 25µA IQ, synchronous step-down converter.
These alternatives offer similar functionalities but may differ in features like voltage range, current capacity, or package type. Always check the datasheets for specific differences.
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