LT8350SAV#PBF

Overview

The LT8350SAV#PBF is a monolithic 4-switch synchronous buck-boost converter featuring Silent Switcher architecture for minimized EMI emissions. It operates with an input voltage range of 3V to 40V and provides an adjustable output voltage from 1V to 18V. The device delivers up to 6A of output current and supports switching frequencies between 200kHz and 2MHz, including spread spectrum frequency modulation. Packaged in a 32-pin LQFN (6x4mm) with exposed pad, it is qualified to AEC-Q100 standards for automotive applications.

Feature Summary

• Silent Switcher architecture minimizes electromagnetic interference emissions while maintaining high efficiency across the operating range.
• Single inductor four-switch topology enables seamless transitions between buck, boost, and bypass modes without top MOSFET refresh noise.
• Proprietary peak current mode control allows for adjustable and synchronizable fixed-frequency operation or spread spectrum modulation.
• Integrated high-side PMOS load switch driver isolates the output from the input during shutdown conditions.

Applications

• Automotive voltage regulators
• Battery and supercapacitor chargers
• Industrial power systems
• Telecom infrastructure

Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to confirm package type and temperature grade. Ensure the ordering part number matches the required automotive qualification status. Cross-reference datasheet revisions to confirm pinout compatibility and electrical specifications before finalizing procurement orders.

Selection Notes

Select this component when input voltages vary significantly above, below, or equal to the required output level. The wide input range and high current capability make it suitable for systems requiring robust regulation under varying line conditions. Consider the thermal performance of the exposed pad package for high-power dissipation scenarios.

Part Context

This part belongs to the LT8350 family of synchronous buck-boost converters designed for high-efficiency power conversion. The series utilizes proprietary Silent Switcher technology to address EMI challenges in compact designs. It serves as a versatile solution for applications demanding flexible voltage regulation from a single inductor topology.

Replacement Considerations

LT8350RV#PBF

FAQ

Does the LT8350 support frequency synchronization?

Yes, the device supports external frequency synchronization within its 200kHz to 2MHz operating range.

What protection features are included?

The IC includes robust fault protection for output short-circuit conditions, with configurable retry, latch-off, or continuous running behaviors.