LTC3890-1 (5)
The LTC3890-1 is available from Analog Devices at Xecor. Designed for dual step-down DC/DC control, the LTC3890-1 offers wide input voltage range (4V to 60V), low operating IQ (50µA), and out-of-phase operation to reduce input capacitance and noise. Available in a 28-pin SSOP package, it is ideal for automotive always-on systems, battery-operated digital devices, and distributed DC power systems. Whether used in high-performance power management or energy-efficient applications, this series ensures reliable performance, scalability, and efficiency for demanding environments. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LTC3890-1 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LTC3890EGN-1#PBF | With its robust design and reliable performance | SSOP-28 | 5,163 | |
| LTC3890EGN-1#TRPBF | DC/DC Cntrlr Dual-OUT Step Down 900kHz 28-Pin SSOP N T/R | SSOP-28 | 8,668 | |
| LTC3890IGN-1#PBF | 28-150mil LTC3890IGN-1#PBF | SSOP-28 | 8,269 | |
| LTC3890MPGN-1#PBF | DC/DC Cntrlr Dual-OUT Step Down 900kHz 28-Pin SSOP N Tube | SSOP-28 | 5,177 | |
| LTC3890MPGN-1#TRPBF | DC/DC Cntrlr Dual-OUT Step Down 900kHz 28-Pin SSOP N T/R | SSOP-28 | 9,680 |
Key Featrues
Wide VIN Range (4V to 60V): This feature allows the controller to operate efficiently across a broad range of input voltages, making it suitable for diverse applications such as automotive systems and battery-powered devices. Its ability to handle high input voltages ensures robust performance in environments with fluctuating power sources.
Low Operating IQ (50µA): With minimal quiescent current, the LTC3890-1 significantly enhances energy efficiency, particularly in always-on systems or devices requiring long battery life. This feature reduces power consumption during standby or light-load conditions, extending operational runtime.
Out-of-Phase Controllers: By operating the two controller output stages out-of-phase, this feature reduces input capacitance requirements and minimizes power supply-induced noise. This improves system reliability and performance, especially in noise-sensitive applications.
Programmable Fixed Frequency (50kHz to 900kHz): The ability to set the switching frequency allows designers to optimize the controller for specific efficiency, size, and performance requirements. This flexibility makes it adaptable to a wide range of use cases, from compact portable devices to high-power distributed systems.
Selectable Operation Modes (Continuous, Pulse-Skipping, Burst Mode®): This feature enables the controller to adapt to varying load conditions, improving efficiency at light loads and reducing ripple noise. It ensures optimal performance across different operating scenarios, enhancing both energy savings and system stability.
Low Operating IQ (50µA): With minimal quiescent current, the LTC3890-1 significantly enhances energy efficiency, particularly in always-on systems or devices requiring long battery life. This feature reduces power consumption during standby or light-load conditions, extending operational runtime.
Out-of-Phase Controllers: By operating the two controller output stages out-of-phase, this feature reduces input capacitance requirements and minimizes power supply-induced noise. This improves system reliability and performance, especially in noise-sensitive applications.
Programmable Fixed Frequency (50kHz to 900kHz): The ability to set the switching frequency allows designers to optimize the controller for specific efficiency, size, and performance requirements. This flexibility makes it adaptable to a wide range of use cases, from compact portable devices to high-power distributed systems.
Selectable Operation Modes (Continuous, Pulse-Skipping, Burst Mode®): This feature enables the controller to adapt to varying load conditions, improving efficiency at light loads and reducing ripple noise. It ensures optimal performance across different operating scenarios, enhancing both energy savings and system stability.
Applications
Automotive Power Management: The LTC3890-1 is ideal for managing power in automotive always-on systems, such as infotainment, telematics, and advanced driver-assistance systems (ADAS). Its wide input voltage range (4V to 60V) and low quiescent current (50µA) ensure efficient operation, even in demanding automotive environments with fluctuating battery voltages.
Portable Battery-Powered Devices: The LTC3890-1 is well-suited for battery-operated digital devices, such as handheld medical instruments, portable test equipment, and consumer electronics. Its dual-output, step-down architecture and low ripple Burst Mode® operation maximize battery life while delivering stable power to sensitive components.
Distributed Power Systems: The LTC3890-1 is an excellent choice for distributed DC power systems in industrial and telecommunications applications. Its out-of-phase controllers reduce input capacitance requirements and minimize power supply noise, ensuring reliable operation in multi-rail power distribution networks.
High-Efficiency Power Conversion: The LTC3890-1 is perfect for high-efficiency power conversion in applications such as renewable energy systems, server power supplies, and LED lighting. Its programmable fixed frequency (50kHz to 900kHz) and 99% duty cycle capability enable optimal performance across a wide range of load conditions, ensuring minimal energy loss.
Portable Battery-Powered Devices: The LTC3890-1 is well-suited for battery-operated digital devices, such as handheld medical instruments, portable test equipment, and consumer electronics. Its dual-output, step-down architecture and low ripple Burst Mode® operation maximize battery life while delivering stable power to sensitive components.
Distributed Power Systems: The LTC3890-1 is an excellent choice for distributed DC power systems in industrial and telecommunications applications. Its out-of-phase controllers reduce input capacitance requirements and minimize power supply noise, ensuring reliable operation in multi-rail power distribution networks.
High-Efficiency Power Conversion: The LTC3890-1 is perfect for high-efficiency power conversion in applications such as renewable energy systems, server power supplies, and LED lighting. Its programmable fixed frequency (50kHz to 900kHz) and 99% duty cycle capability enable optimal performance across a wide range of load conditions, ensuring minimal energy loss.
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