LT3990IDD#TRPBF

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LT3990IDD#TRPBF

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IC REG BUCK ADJ 350MA 10DFN

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Thông số kỹ thuật

thuộc tính Giá trị
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 4.2V
Voltage-Input(Max) 62V
Voltage-Output(Min/Fixed) 1.21V
Voltage-Output(Max) 25V
Current-Output 350mA
Frequency-Switching 210kHz ~ 2.3MHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 10-WFDFN Exposed Pad

Tổng quan

Description

The LT3990IDD#TRPBF is a specific variant of the LT3990, a step-down switching regulator from Analog Devices. It is designed to efficiently convert higher input voltages to lower output voltages in a compact package.
Key features of the LT3990 include:
- Input Voltage Range: 4.3V to 60V, accommodating a wide range of industrial and automotive applications.
- Output Voltage: Adjustable from 1.2V to 36V, allowing flexibility in various circuit designs.
- Output Current: Capable of delivering up to 350mA, suitable for moderate power needs.
- Efficiency: High efficiency (up to 90%) due to its switching design, reducing power loss and thermal issues.
- Frequency: Programmable switching frequency from 200kHz to 2.5MHz, providing a trade-off between efficiency and component size.
- Protection Features: Includes thermal shutdown, short-circuit protection, and overcurrent protection for enhanced reliability.

The LT3990IDD#TRPBF comes in a thermally enhanced 8-lead DD (3mm x 3mm) package, marked for surface-mount assembly, making it ideal for densely packed electronic designs.

Equivalent

The LT3990IDD#TRPBF is a step-down switching regulator. Equivalent products include:
1. Texas Instruments LM5165: A high-efficiency, low quiescent current synchronous buck converter.
2. Microchip MCP16301: A high-efficiency buck regulator with adjustable output.
3. Maxim Integrated MAX17502: A high-efficiency, synchronous step-down DC-DC converter.
4. Diodes Incorporated AP63205: A 2A synchronous buck converter.

These alternatives offer similar functionality with variations in features such as output current, efficiency, and package type. Always verify specific requirements to ensure compatibility.

Features

The LT3990IDD#TRPBF is a step-down regulator from Analog Devices. Key features include:
1. Input Voltage Range: It operates with an input voltage range from 4V to 60V, making it versatile for various applications.

2. Output Current: The device can deliver up to 350mA of output current.
3. Switching Frequency: It features an adjustable switching frequency between 200kHz and 2.5MHz, allowing for optimization of efficiency and size.
4. Efficiency: The regulator is designed for high efficiency, even at low output currents, through its Burst Mode operation.
5. Low Quiescent Current: It has a low quiescent current of 2.7μA in Burst Mode, which is ideal for battery-operated devices.
6. Protection Features: The LT3990 includes features such as short-circuit protection, thermal shutdown, and soft-start to ensure reliable operation.
7. Package: It comes in a 10-lead (3mm x 3mm) DFN package with a thermally enhanced design.
These features make the LT3990 suitable for automotive, industrial, and distributed power systems, where wide input voltage range and high efficiency are crucial.

Pinout

The LT3990IDD#TRPBF is a high-voltage, monolithic buck switching regulator from Analog Devices, previously Linear Technology. It has a 10-pin configuration designed in a DFN (Dual Flat No-Lead) package. The primary function of the LT3990 is to efficiently convert higher input voltages to lower output voltages, making it suitable for use in applications requiring high step-down voltage conversion. It can operate with an input voltage range from 4V to 60V and deliver an output current of up to 350mA. The device incorporates features such as a programmable switching frequency, synchronization capability, and a low quiescent current, which makes it highly versatile for use in automotive, industrial, and telecom power supplies.

Manufacturer

The LT3990IDD#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company serves various industries, including industrial, automotive, communications, healthcare, and consumer electronics. Analog Devices is known for its high-performance products and solutions that are utilized in a wide range of applications, such as data conversion, signal conditioning, power management, and wireless communication.

Application

The LT3990IDD#TRPBF is a high efficiency, step-down switching regulator. It is commonly used in a variety of application areas, including automotive systems, industrial power supplies, distributed power systems, and battery-powered devices. Its wide input voltage range and ability to deliver up to 350mA of output current make it suitable for regulating power in systems that require efficient voltage conversion from high voltage inputs. Additionally, with features like low quiescent current and high efficiency, it is ideal for applications that prioritize power conservation and thermal management.

Package

The LT3990IDD#TRPBF is a step-down switching regulator from Analog Devices. It comes in a thermally enhanced 8-lead (3mm x 3mm) DFN package, which is designed for surface-mount applications and provides efficient heat dissipation.

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