The LTC3890HUH#PBF is a high-performance dual 2-phase synchronous step-down DC/DC controller that offers a compact, efficient, and versatile solution for a variety of applications. Manufactured by Linear Technology, now part of Analog Devices, this controller is designed to minimize external component count while providing a flexible platform for power regulation.

Key Features

• Wide Input Voltage Range: The LTC3890HUH#PBF operates over a 4.5V to 60V input voltage range, making it suitable for a wide array of supply voltages.
• Dual Output Channels: This controller can manage two outputs that can be set to a voltage as low as 0.8V, ensuring compatibility with modern low-voltage power requirements.
• High Efficiency: With its synchronous operation, the LTC3890HUH#PBF can achieve up to 95% efficiency, reducing heat and eliminating the need for bulky heatsinks.
• Adjustable Switching Frequency: Users can set the switching frequency from 50kHz to 900kHz or can synchronize it to an external clock.
• Phase-Lockable Frequency: The 75kHz to 850kHz phase-lockable frequency range allows for noise-sensitive applications to minimize electromagnetic interference.
• Current Mode Operation: Provides excellent line and load transient response.
• Integrated Gate Drivers: The built-in gate drivers are designed to drive standard P-channel MOSFETs or N-channel MOSFETs with external bootstrap circuitry.

Applications

The LTC3890HUH#PBF is ideal for a variety of applications, including but not limited to:

• Automotive and Industrial Systems
• Telecommunications Power Supplies
• Datacom and Storage Systems
• High-Density Distributed Power Systems

Package and Quality

The LTC3890HUH#PBF comes in a 32-lead QFN package that offers a compact footprint for space-constrained applications. It is RoHS compliant and is designed to meet the rigorous standards of industrial and automotive temperature ranges, ensuring reliability and performance in harsh environments.