LTC3890EUH#TRPBF

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LTC3890EUH#TRPBF

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IC REG CTRLR BUCK/SEPIC 32QFN

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Especificações

Atributo Valor
Package Tape & Reel (TR),Cut Tape (CT)
Series PolyPhase®
ProductStatus Active
OutputType Transistor Driver
Function Step-Down
OutputConfiguration Positive
Topology Buck
NumberofOutputs 2
OutputPhases 2
Voltage-Supply(Vcc/Vdd) 4V ~ 60V
Frequency-Switching 105kHz ~ 835kHz, 350kHz ~ 535kHz
DutyCycle(Max) 99%
SynchronousRectifier Yes
ClockSync No
ControlFeatures Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
OperatingTemperature -40°C ~ 125°C (TJ)
MountingType Surface Mount
Package/Case 32-WFQFN Exposed Pad

Visão Geral

Description

The LTC3890EUH#TRPBF is a high-performance, dual-output step-down (buck) DC/DC switching regulator controller from Analog Devices. It is designed to convert higher input voltages down to lower output voltages with high efficiency and precision. The controller can operate with input voltages ranging from 4V to 60V, making it suitable for a wide range of applications, including automotive, industrial, and telecom systems.
Key features of the LTC3890EUH#TRPBF include its ability to support output currents up to 20A per output channel, programmable switching frequency from 50kHz to 900kHz, and a robust set of protection features such as overvoltage, short-circuit, and thermal shutdown. It also offers a wide output voltage range, with differential output voltage sensing, and supports both pulse-skipping and forced continuous operation modes to optimize performance and efficiency. The chip is packaged in a thermally enhanced 38-lead QFN package, making it suitable for compact and thermally constrained applications.

Equivalent

The LTC3890EUH#TRPBF is a step-down DC/DC controller from Analog Devices. Equivalent products might include:
1. Texas Instruments TPS40170 - A synchronous buck controller.
2. Maxim Integrated MAX17504 - High-efficiency, synchronous step-down DC-DC converter.
3. ON Semiconductor NCP81174 - A step-down PWM controller.
4. Richtek RT7272A - A synchronous step-down converter.
These alternatives may vary in specific features, so reviewing each datasheet for compatibility is essential.

Features

The LTC3890EUH#TRPBF is a high-performance DC/DC synchronous step-down switching regulator controller. Key features include:
1. Wide Input Voltage Range: Operates from 4V to 60V, making it suitable for automotive and industrial applications.
2. Output Voltage: Adjustable output voltage from 0.8V to 99% of VIN, supporting a wide range of applications.
3. Current Capability: Capable of driving all N-channel MOSFET power stages for high efficiency.
4. Low Quiescent Current: Consumes only 50µA in sleep mode, enhancing battery life in portable applications.
5. High Efficiency: Efficiency up to 95% is achievable with synchronous rectification.
6. Adjustable Frequency: Frequency is adjustable from 50kHz to 900kHz, allowing design flexibility.
7. Fault Protection: Includes features like overcurrent, overvoltage, and thermal protection for robust operation.
8. Configurable Operation Modes: Supports Burst Mode, pulse-skipping, and continuous operation for optimized performance.
9. Temperature Range: Operates over a -40°C to 125°C temperature range, suitable for harsh environments.
10. Package: Available in a 32-lead (5mm × 5mm) QFN package.
These features make it ideal for efficient and versatile power management in various electronics.

Pinout

The LTC3890EUH#TRPBF is a high-performance dual output DC/DC synchronous step-down switching regulator controller. It features a 38-pin package. This controller is designed to drive all N-channel synchronous power MOSFET stages to achieve high efficiency, and it is capable of operating with input voltages between 4V and 60V, making it suitable for a wide range of applications.
Key functions of the LTC3890 include:
1. Dual output capability: It can regulate two separate outputs, which enhances its versatility in multi-rail systems.
2. Synchronous rectification: Designed for high efficiency by using N-channel MOSFETs.
3. Current mode control: Offers excellent line and load regulation.
4. Adjustable switching frequency: Can be set from 50kHz to 900kHz.
5. Low quiescent current: Supports high efficiency, especially in battery-powered applications.
6. Programmable output voltage: Allows customization for different applications.
This combination of features makes the LTC3890EUH#TRPBF suitable for a variety of power management applications in industrial, automotive, and telecom environments.

Manufacturer

The LTC3890EUH#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company is known for its high-performance products used in a wide range of applications, including communications, healthcare, industrial, automotive, and consumer electronics. Analog Devices focuses on innovation in areas such as signal processing, power management, and data conversion, making it a key player in the semiconductor industry.

Application

The LTC3890EUH#TRPBF is a high-performance, dual-output synchronous step-down DC/DC controller. Its application areas include:
1. Telecommunications and Networking: Provides efficient power conversion for routers, switches, and base stations.
2. Automotive Systems: Used in power management for infotainment, navigation, and electronic control units.
3. Industrial Equipment: Powers control systems, robotics, and process automation.
4. Data Centers: Supports server and storage power requirements.
5. Aerospace and Defense: Suitable for powering avionics and defense electronics due to reliability and efficiency.
These applications benefit from its wide input voltage range, excellent transient response, and high efficiency.

Package

The LTC3890EUH#TRPBF is supplied in a 32-lead (5mm x 5mm) QFN (Quad Flat No-Lead) package. This package type is designed for surface-mount technology, offering a compact footprint with excellent thermal performance, suitable for high-density circuit board applications.

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