LTM4680IY#PBF ADI DC DC Converter Selection Guide

LTM4680IY#PBF ADI DC DC Converter is dual 30 A or single 60 A step-down uModule regulator with digital power system management. It is used in high-current FPGA, ASIC, processor and network-card rails that need telemetry, sequencing and digitally adjustable power management. This article explains how the part is used, what to check during selection, where replacement risk appears and what procurement should confirm before sending an RFQ. View the LTM4680IY#PBF product detail page or contact In-Fortune for sourcing support.

What is LTM4680IY#PBF?

LTM4680IY#PBF is an Analog Devices part in the DC DC Converter category. The ordering suffix is part of the purchasing identity, so the complete model should be kept intact in BOMs, RFQs and engineering change notes. ADI's product page should be treated as the primary datasheet source, while the In-Fortune page is the purchasing landing page for package, handling and supplier confirmation.

The article is intentionally not a copy of the product table. The real decision is whether this exact orderable part matches the circuit role, package footprint, lifecycle expectations and substitution limits for the build. For a released product, changes to suffix, speed grade, package, interface or temperature range should go through engineering review.

How LTM4680IY#PBF is used

In a point-of-load power design, LTM4680IY#PBF converts an upstream bus into local rails for processors, FPGAs, ADCs, DSPs or communications devices. The design must check input bypassing, output set resistors, sequencing, thermal path, current derating, layout keepouts and fault behavior. For digital power modules, PMBus settings and configuration records are part of the design release.

Before layout release, confirm the pinout, package drawing, thermal pad or exposed pad requirements, bypass capacitor placement, signal integrity rules and any required reference or clock network. If the part interfaces with an FPGA, DSP, microcontroller, RF chain or power rail, the interface timing and startup behavior should be validated as a system, not only as a standalone component.

Key specifications for LTM4680IY#PBF

LTM4680IY#PBF selection guide

Select LTM4680IY#PBF when a high-current point-of-load rail needs integrated power components, PMBus control and dual/single output flexibility. The most important checks are the exact suffix, package, supply rails, signal levels, interface timing, operating temperature and the board-level constraints around layout and thermal performance. For designs already released with this model, the goal is normally continuity and controlled qualification rather than changing to a different family casually.

Do not select LTM4680IY#PBF when the board lacks PMBus infrastructure, thermal area, BGA assembly capability or the required input/output voltage range. A part with a similar base number, same package size or same headline function can still fail electrically if the speed grade, input/output range, pinout, package drawing, power sequencing or lifecycle status is different.

The clean selection path is to review the ADI datasheet, verify the In-Fortune landing page, compare the exact orderable suffix, then freeze the approved substitutions. If the engineering team accepts alternates, list the allowed part numbers explicitly in the purchase request.

Alternatives and cross references for LTM4680IY#PBF

Alternatives are useful for sourcing continuity, but they are not automatic replacements. Before approving a LTM4680IY#PBF replacement, compare the datasheet, pinout, package, rating, speed grade, electrical characteristics, PCB footprint, thermal limits, lifecycle status and required certifications.

Buying notes and sourcing checks

Before issuing an RFQ for LTM4680IY#PBF, confirm the complete model number, ADI manufacturer name, package, suffix, tray or reel handling, date-code expectation, batch consistency, original factory condition, traceability documents, RoHS or REACH needs, delivery schedule and accepted substitute range. Do not shorten the request to only the base number; that can lose speed-grade, package and packaging information.

Request sourcing support for LTM4680IY#PBF. Contact In-Fortune to confirm LTM4680IY#PBF specifications. Send an RFQ with your required quantity and delivery schedule, and state whether alternates are allowed only after engineering approval.

LTM4680IY#PBF FAQ

Where can I find the LTM4680IY#PBF datasheet?

Start with the Analog Devices product page and then confirm the exact ordering suffix with the In-Fortune product detail page or sales team.

What is the LTM4680IY#PBF pinout?

The pinout must be checked in the ADI datasheet package drawing and compared with the PCB footprint. Do not rely on the base model alone when suffix or package options exist.

What applications fit LTM4680IY#PBF?

Typical applications include high-current FPGA, ASIC, processor and network-card rails that need telemetry, sequencing and digitally adjustable power management where the stated package, interface and electrical limits match the board design.

Can LTM4680IY#PBF be replaced by a related ADI part?

Only after checking the datasheet, package, pinout, supply range, speed grade, interface, thermal behavior, lifecycle and customer approval status.

What should procurement confirm before buying LTM4680IY#PBF?

Confirm the complete model, suffix, ADI brand, package, packaging method, date code, batch requirement, original condition, required documents, delivery schedule and approved substitute range.

Should I use the base part number or full orderable model?

Use the full orderable model for purchasing and production records. The base part is useful for datasheet research, but the suffix controls package and handling details.

Does In-Fortune provide sourcing support for LTM4680IY#PBF?

Yes. Use the product detail page or RFQ path to ask In-Fortune to confirm the exact orderable part and application-sensitive replacement limits.

Related internal links for LTM4680IY#PBF

• LTM4680IY#PBF product detail page
• Analog Devices manufacturer page on In-Fortune
• Electronic component product search
• Request sourcing support from In-Fortune
• LTM4622IY#PBF related product detail page
• ADSP-21489BSWZ-4A related product detail page
• AD9253BCPZ-105 related product detail page
• AD9253BCPZ-105 ADI product article
• ADSP-21489BSWZ-4A ADI product article
• LTM4622IY#PBF ADI product article

Missing or uncertain data

• Latest ADI revision, product notice and package drawing for the exact suffix: to be confirmed with supplier.
• Application-specific derating, timing, thermal and signal-integrity margins: to be confirmed by engineering review.
• Packaging method, label requirement, date-code range, batch consistency and delivery schedule: to be confirmed with supplier.
• Any replacement must be approved against datasheet, pinout, package, rating, PCB footprint, lifecycle and certification requirements before use.