LTC3728LCGN#PBF

DC DC Switching Controllers Overview

The LTC3728LCGN#PBF is a dual high-performance step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 7 V to 28 V and supports output voltages of 5 V and 3.3 V. The device drives all N-channel synchronous power MOSFET stages, delivering up to 6 A total output current with a buck topology. It features a fixed switching frequency of 550 kHz and includes external frequency synchronization capabilities. Packaged in a 28-lead SSOP, it functions reliably across a temperature range of -40°C to +85°C.

DC DC Switching Controllers Feature Summary

• Dual channel architecture driving all N-channel synchronous power MOSFET stages for efficient step-down conversion
• External frequency synchronization capability allows precise timing alignment with system clocks
• Integrated low noise design optimized for sensitive analog and digital load requirements

DC DC Switching Controllers Applications

• High efficiency low noise DC/DC converter designs requiring synchronized operation
• Systems utilizing 5V or 3.3V rails derived from 7V to 28V input sources
• Industrial and commercial equipment requiring dual independent regulated outputs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix LCGN against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with required output current specifications before integration. Cross-reference datasheet revisions to validate pinout and electrical characteristics match the intended design implementation.

DC DC Switching Controllers Selection Notes

Select this component when dual synchronous buck control is required with external clock sync. Compare against standard LTC3728 variants if industrial temperature range or specific package constraints are mandatory. Evaluate thermal management needs based on the 6A total current capacity and SSOP footprint limitations.

DC DC Switching Controllers Part Context

This part belongs to the LTC3728L series, distinguished by its low noise performance and external synchronization feature. It serves as a controller rather than a complete regulator, requiring external MOSFETs. It complements other PMIC solutions by providing flexible dual-phase control for complex power distribution networks.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3728IGN#PBF for general purpose applications or the LTC3728IUH#PBF for QFN packaging. Verify functional equivalence regarding synchronization pins and drive strength before substitution.