LTC3737EGN#PBF

DC DC Switching Controllers Overview

The LTC3737EGN#PBF is a dual two-phase synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2.75 V to 9.8 V and provides two independent outputs with adjustable voltages from 0.6 V to 5.5 V. The device utilizes a constant frequency current mode architecture with a fixed switching frequency of 550 kHz. It features MOSFET VDS sensing to eliminate external current sense resistors, thereby improving efficiency. The controller supports output tracking and phase-skipping for light load operation, housed in a 24-lead SSOP package.

DC DC Switching Controllers Feature Summary

• Eliminates the need for external current sense resistors through MOSFET VDS sensing technology, enhancing overall system efficiency.
• Provides excellent AC and DC load and line regulation via a constant frequency current mode architecture.
• Minimizes input capacitance ESR power loss and noise by operating the two controllers out of phase.
• Supports precise output voltage tracking between channels for synchronized power rail sequencing.

DC DC Switching Controllers Applications

• Point-of-load regulation for high-performance processors requiring multiple power rails
• Industrial equipment with distributed power architectures
• Telecommunications infrastructure power supplies
• Embedded systems requiring efficient dual-output step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix EG indicates the SSOP-28 package variant when sourcing. Confirm RoHS compliance status as detailed in official documentation. Ensure compatibility with required thermal management solutions for the chosen enclosure. Check for any recent product change notices regarding marking or specifications before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component for designs requiring dual isolated outputs from a single low-voltage input source. The absence of sense resistors makes it suitable for applications prioritizing board space and efficiency over absolute current measurement precision. Evaluate the 550 kHz switching frequency against EMI constraints and inductor size requirements. Ensure the input voltage range aligns with the available supply rails in the target system.

DC DC Switching Controllers Part Context

This part belongs to the LTC3737 family of dual two-phase DC/DC controllers designed for high-efficiency power delivery. It complements other Analog Devices PMIC solutions by offering a compact, resistorless sensing approach. The EG suffix specifically denotes the plastic SSOP package option, distinguishing it from QFN variants like the EUF series within the same functional family.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3737EUF#PBF for QFN packaging or the LTC3737EGN#TRPBF for tape-and-reel handling. Verify pinout compatibility and thermal performance differences when transitioning between package types. No functional replacements are confirmed outside the immediate LTC3737 family based on available data.