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LTC3890EUH#TRPBF
IC REG CTRLR BUCK/SEPIC 32QFN
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規格
| 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 |
概述
Description
The LTC3890EUH#TRPBF is a high-performance, dual-output synchronous step-down DC/DC controller from Analog Devices. Designed for efficiency and versatility, it can operate from input voltages ranging from 4V to 60V, making it suitable for a wide range of applications, including automotive, industrial, and distributed power systems.
Key features include high efficiency over a broad load range, programmable output voltages, and the ability to drive all N-channel MOSFETs. It supports current mode control with programmable current limit to enhance reliability and performance. The controller operates with selectable fixed-frequency operation or phase-locked loop (PLL) synchronization to an external clock, allowing for design flexibility.
The LTC3890EUH#TRPBF also offers robust protection features, including overvoltage and overtemperature protection, programmable soft-start, and a power good signal. Its compact QFN package makes it suitable for space-constrained applications. Overall, this controller provides a reliable and efficient solution for power management in complex electronic systems.
Key features include high efficiency over a broad load range, programmable output voltages, and the ability to drive all N-channel MOSFETs. It supports current mode control with programmable current limit to enhance reliability and performance. The controller operates with selectable fixed-frequency operation or phase-locked loop (PLL) synchronization to an external clock, allowing for design flexibility.
The LTC3890EUH#TRPBF also offers robust protection features, including overvoltage and overtemperature protection, programmable soft-start, and a power good signal. Its compact QFN package makes it suitable for space-constrained applications. Overall, this controller provides a reliable and efficient solution for power management in complex electronic systems.
Features
The LTC3890EUH#TRPBF is a high-performance, dual-output, step-down (buck) DC/DC switching regulator controller. Key features include:
1. Wide Input Voltage Range: It supports a broad input voltage range from 4V to 60V, making it suitable for automotive, industrial, and telecom applications.
2. Output Voltage: It can regulate output voltages as low as 0.8V.
3. Dual Outputs: Capable of dual-output operation, featuring two independent output voltage settings.
4. High Efficiency: The controller operates with high efficiency over a wide load range, thanks to its low quiescent current design.
5. Current Mode Control: Offers precise current mode control, providing consistent and accurate power delivery.
6. Adjustable Frequency: The switching frequency is programmable from 50kHz to 900kHz, allowing flexibility in design for optimizing efficiency and size.
7. Synchronization: The device can be synchronized to an external clock for noise-sensitive applications.
8. Protection Features: Includes overvoltage, overcurrent, and overtemperature protection to ensure reliable operation under various conditions.
9. Package: Available in a thermally enhanced 32-lead (5mm × 5mm) QFN package which supports efficient heat dissipation.
These features make the LTC3890EUH#TRPBF a versatile solution for a wide range of power management applications.
1. Wide Input Voltage Range: It supports a broad input voltage range from 4V to 60V, making it suitable for automotive, industrial, and telecom applications.
2. Output Voltage: It can regulate output voltages as low as 0.8V.
3. Dual Outputs: Capable of dual-output operation, featuring two independent output voltage settings.
4. High Efficiency: The controller operates with high efficiency over a wide load range, thanks to its low quiescent current design.
5. Current Mode Control: Offers precise current mode control, providing consistent and accurate power delivery.
6. Adjustable Frequency: The switching frequency is programmable from 50kHz to 900kHz, allowing flexibility in design for optimizing efficiency and size.
7. Synchronization: The device can be synchronized to an external clock for noise-sensitive applications.
8. Protection Features: Includes overvoltage, overcurrent, and overtemperature protection to ensure reliable operation under various conditions.
9. Package: Available in a thermally enhanced 32-lead (5mm × 5mm) QFN package which supports efficient heat dissipation.
These features make the LTC3890EUH#TRPBF a versatile solution for a wide range of power management applications.
Package
The LTC3890EUH#TRPBF is a step-down DC/DC controller from Analog Devices. It comes in a 32-lead (5mm × 5mm) QFN package type, which is compact and suitable for high-density applications.
Pinout
The LTC3890EUH#TRPBF is a dual output synchronous step-down DC/DC controller. It typically comes in a 32-pin QFN package. The various pins on this controller serve several functions such as:
1. VIN, VOUT: These are the input and output pins for power signals.
2. SW, TG, BG: Switch node, top gate, and bottom gate drive pins for controlling external MOSFETs.
3. FB, ITH: Feedback and control pins for regulating output voltage and compensating the error amplifier respectively.
4. VPRG1, VPRG2: Voltage programming pins for setting output voltage levels.
5. RUN, SS: Run control and soft-start pins to enable operation and adjust startup time.
These pins make the LTC3890EUH#TRPBF versatile for various configurations in power management applications, allowing it to efficiently manage power conversion in complex electronic systems. For detailed pin functions, it is always a good idea to refer to the specific datasheet provided by Analog Devices.
1. VIN, VOUT: These are the input and output pins for power signals.
2. SW, TG, BG: Switch node, top gate, and bottom gate drive pins for controlling external MOSFETs.
3. FB, ITH: Feedback and control pins for regulating output voltage and compensating the error amplifier respectively.
4. VPRG1, VPRG2: Voltage programming pins for setting output voltage levels.
5. RUN, SS: Run control and soft-start pins to enable operation and adjust startup time.
These pins make the LTC3890EUH#TRPBF versatile for various configurations in power management applications, allowing it to efficiently manage power conversion in complex electronic systems. For detailed pin functions, it is always a good idea to refer to the specific datasheet provided by Analog Devices.
Manufacturer
The LTC3890EUH#TRPBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in designing and manufacturing a broad range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits used in electronic equipment. The company's products are widely employed in various industries, including automotive, communications, industrial, healthcare, and consumer electronics. Analog Devices is known for its focus on innovation and quality, providing solutions for complex engineering challenges in applications like power management, data conversion, and signal processing.
Application
The LTC3890EUH#TRPBF is a versatile DC/DC controller used in various power management applications. Its application areas include telecommunications, industrial control systems, automotive electronics, and distributed power systems. It is ideal for step-down voltage conversion in high-performance systems that require high efficiency, wide input voltage ranges, and low quiescent current. Additionally, it is suitable for battery-powered devices due to its low power draw. Its robust design makes it suitable for use in harsh environments and applications requiring reliable power delivery.
Equivalent
The LTC3890EUH#TRPBF is a dual output step-down DC/DC controller. Equivalent products can include:
1. Texas Instruments: TPS40170, a synchronous buck controller.
2. Maxim Integrated: MAX17501, high-efficiency, synchronous step-down controller.
3. ON Semiconductor: NCP5422, a dual-output buck controller.
Equivalent alternatives should be verified for specific application requirements like voltage, current, and additional features.
1. Texas Instruments: TPS40170, a synchronous buck controller.
2. Maxim Integrated: MAX17501, high-efficiency, synchronous step-down controller.
3. ON Semiconductor: NCP5422, a dual-output buck controller.
Equivalent alternatives should be verified for specific application requirements like voltage, current, and additional features.
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