LTM4644IY#PBF Alternatives and Equivalents
LTM4644 µModule buck regulator · Analog Devices · verified against manufacturer datasheet parameters
LTM4644IY#PBF — a LTM4644 µModule buck regulator part from Analog Devices — is one of the most-searched part numbers in its category. This page compares its verified pin-compatible variants and closest family alternates, using manufacturer datasheet parameters, and shows what is actually available from stock.
The table below distinguishes true drop-in replacements (same package and pinout) from family alternates that need design review. Specs marked "—" vary by suffix or were not published in the source data — confirm on the datasheet before committing.
This cross-reference is part of our guide to counterfeit electronic components — These parts are among the most counterfeited lines on the open market — inspection methods are in our pillar guide.
View LTM4644IY#PBF stock & pricing
Is the LTM4644IY#PBF discontinued?
LTM4644IY#PBF is part of Analog Devices' LTM4644 quad-output µModule (power module) family. The suffix encodes temperature grade: E = commercial, I = industrial, MP = military. All share the same package and pinout, making grade variants true drop-in alternates.
Pin-to-pin compatible alternatives
"Drop-in" means same package and pinout; other rows are family alternates that need design review.
| Part Number | Compatibility | Package |
|---|---|---|
| LTM4644IY#PBF (target) | — | — |
| LTM4644EY-1#PBF | Drop-in (same package & pinout) | — |
| LTM4644EY#PBF | Drop-in (same package & pinout) | — |
| LTM4644IY | Drop-in (same package & pinout) | — |
| LTM4644IY-1 | Drop-in (same package & pinout) | — |
| LTM4644IY-1#PBF | Drop-in (same package & pinout) | — |
LTM4644IY#PBF vs LTM4644EY-1#PBF: what actually differs
Within the compared parameter set these codes match on the published specs; the differences live in suffix details — packing, temperature grade or flash/density options. Send both codes if you want us to confirm the delta on your specific requirement.
Migration checklist: re-validate before you swap
- Suffix defines temperature grade — E (commercial), I (industrial), MP (military): same pinout, same package
- Verify your ambient temperature budget against the alternate grade
- µModules integrate the inductor — no external compensation redesign needed between grades
- Check input voltage range and per-channel current against your rails
- Confirm Pb-free/RoHS suffix (#PBF) requirements for your compliance file
Where to source LTM4644IY#PBF and its alternates
We stock LTM4644IY#PBF and its family variants in Hong Kong with date codes stated on every quote. Each lot passes marking verification; X-ray and electrical testing through accredited partner labs are available on request, with the report delivered before final payment.
Pricing follows the live spot market, so quotes carry a stated validity window — typically 24 to 48 hours on volatile lines. Send your quantity and required date code and the desk replies within 2 working hours.
LTM4644IY#PBF can also ship consolidated with the rest of your BOM — one shipment, one invoice, one inspection standard. For recurring demand we reserve stock and schedule multi-lot releases, which smooths both price exposure and availability risk across your build calendar.
Guides: obsolete component sourcing · counterfeit detection methods
FAQ
What is the difference between LTM4644EY, IY and MPY?
Temperature grade: E = commercial, I = industrial, MP = military. Same package and pinout — drop-in alternates within your thermal budget.
Is LTM4644IY#PBF discontinued?
The LTM4644 family is active. Specific grades fluctuate with allocation.
Are µModule alternates truly drop-in?
Between grades (E/I/MP), yes — same footprint and pinout. Cross-family changes require schematic review.
Do you supply the military (MP) grade?
Yes, quoted with lot documentation where available.
How are power modules inspected?
Marking verification standard; X-ray and electrical test available on request.
What is quote validity?
Stated on the quote — typically 24–72 hours on volatile power lines.
Can I see photos or test reports before ordering?
Yes — label and top-marking photos of the actual lot are standard, and X-ray or lab reports can be arranged before payment on first orders. Tell the desk what your incoming inspection requires.
Do you support scheduled production deliveries?
Yes. For recurring demand we reserve stock of LTM4644IY#PBF or its alternates and release shipments against your build schedule — one agreement instead of repeated spot buys.
Start an RFQ — our Hong Kong desk replies within 2 working hours.