LTC3807EFE#PBF

DC DC Switching Controllers Overview

The LTC3807EFE#PBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4V to 38V and supports output voltages from 0.8V to 24V. The device features a programmable switching frequency between 50kHz and 900kHz, with a maximum duty cycle of 99%. It utilizes a constant frequency current mode architecture and includes integrated soft-start and tracking capabilities. The component is housed in a 20-lead TSSOP package with an exposed pad and is rated for operation at junction temperatures up to 125°C.

DC DC Switching Controllers Feature Summary

• Supports full N-channel synchronous power MOSFET stages for high efficiency
• Enables precise load regulation through OPTI-LOOP compensation optimization
• Provides flexible light-load operation modes including Burst Mode and pulse skipping
• Integrates internal low-dropout regulator for gate driver power supply

DC DC Switching Controllers Applications

• Automotive always-on systems
• Battery-powered digital devices
• Distributed DC power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS3 adherence before procurement. Confirm the 20-TSSOP-EP package dimensions match the PCB footprint requirements. Ensure the design accounts for the exposed thermal pad connection for proper heat dissipation during operation.

DC DC Switching Controllers Selection Notes

Select this controller when a wide input voltage range up to 38V is required alongside adjustable output settings. It is suitable for designs needing low quiescent current to extend battery life. Consider its compatibility with external N-channel MOSFETs and the need for external current sensing components or DCR sensing circuits.

DC DC Switching Controllers Part Context

This component belongs to the LTC3807 family of high-performance buck controllers. It shares architectural similarities with other Analog Devices PMICs but is distinct in its specific 4V to 38V input window and 20-pin TSSOP packaging configuration compared to QFN variants.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3807IUDC#PBF for QFN packaging or the LT3800EFE#PBF for different input/output configurations. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.