LTC7813IUH#PBF

DC DC Switching Controllers Overview

The LTC7813IUH#PBF is a high-performance synchronous Boost+Buck DC/DC switching regulator controller designed for wide input voltage applications. It features an operating input voltage range from 4.5V to 60V and supports output voltages adjustable from 800mV to 60V. The device integrates independent step-up and step-down controllers capable of driving all N-channel power MOSFET stages. It offers a fixed switching frequency of 850kHz with a maximum duty cycle of 100%. The component operates within a temperature range of -40°C to +125°C and utilizes a 32-lead QFN EP package.

DC DC Switching Controllers Feature Summary

• Integrates independent boost and buck controllers for flexible regulation modes
• Supports cascaded operation to handle input voltages above, below, or equal to the output
• Drives all N-channel power MOSFET stages for high efficiency
• Features low quiescent current for improved standby performance

DC DC Switching Controllers Applications

• Automotive power systems requiring wide input voltage tolerance
• Industrial point-of-load (POL) converters
• Battery-powered equipment with varying source voltages
• Systems requiring non-isolated DC/DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix '#PBF' indicates tube packaging when placing orders. Confirm that the 'I' grade meets the required industrial temperature specifications for your application environment. Ensure compatibility with the 32-pin QFN EP footprint during PCB layout. Cross-reference the manufacturer's latest datasheet for any updates on electrical characteristics or recommended external components before finalizing the design.

DC DC Switching Controllers Selection Notes

Select this controller when a single IC must manage both boost and buck topologies simultaneously or in cascade. It is suitable for designs where the input voltage may fluctuate significantly around the target output level. Consider the 850kHz switching frequency for balancing efficiency and passive component size. Ensure the external MOSFETs can handle the required current levels, as the device acts as a controller rather than a complete converter solution.

DC DC Switching Controllers Part Context

The LTC7813 series belongs to Analog Devices' portfolio of high-frequency synchronous switching regulators. This specific model focuses on versatile voltage conversion capabilities within a compact form factor. It is part of a family designed to simplify complex power management architectures by combining multiple control loops into a single chip, reducing board space and component count compared to discrete solutions.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other variants within the LTC7813 family such as the LTC7813EUH#PBF or LTC7813HUH#PBF, which share similar architectural features but may differ in temperature grades or specific current ratings. Verify pin-to-pin compatibility and electrical parameter alignment before swapping.