LTC1708EG-PG#PBF

DC DC Switching Controllers Overview

The LTC1708EG-PG#PBF is a dual synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates in a buck topology with two independent channels, supporting adjustable output voltages via a 5-bit VID interface. The device features current mode control for high efficiency and stability. Key electrical parameters include an input voltage range up to 15 V, a fixed switching frequency of 550 kHz, and a maximum output current capability of 25 A per phase when paired with external MOSFETs. It functions within a temperature range of -40°C to +85°C and is housed in a 36-lead SSOP package.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture with independent current-mode control loops
• Integrated 5-bit VID interface for programmable output voltage selection
• Synchronous rectification support for enhanced power conversion efficiency
• Built-in protection mechanisms including thermal shutdown and overcurrent limiting

DC DC Switching Controllers Applications

• Point-of-load regulation for high-performance processors
• Industrial equipment power distribution systems
• Telecommunications infrastructure power supplies
• High-density server and storage subsystems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix PG#PBF against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS compliance status. Confirm availability through authorized distributors as supply levels may fluctuate. Ensure the ordering documentation matches the exact part number to avoid receiving non-compliant or obsolete variants during procurement processes.

DC DC Switching Controllers Selection Notes

Select this component for designs requiring dual isolated outputs from a single input source. The 550 kHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the external MOSFET selection supports the required 25 A current handling at the target operating temperature. Validate that the system input voltage remains within the specified limits to maintain stable operation.

DC DC Switching Controllers Part Context

This part belongs to the LTC3728 family of dual synchronous buck controllers, designed for high-efficiency power management applications. It shares architectural similarities with other Analog Devices dual-phase regulators but offers specific VID programming capabilities. The EG package variant indicates a standard industrial temperature range and plastic leaded frame construction suitable for surface-mount assembly.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3728EG#PBF, which shares identical functional specifications and pinouts. Verify that any replacement maintains the same 5-bit VID interface and current mode control characteristics to ensure circuit compatibility without redesign.