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LM2577S — DPAK / D2PAK (TO-252/263) package (representative)
DPAK / D2PAK (TO-252/263)
Representative of package type
National Semiconductor Corp

LM2577S

Switching Regulator · TO-263-5 · Analog
Part Status: NRND
Data last refreshed Jun 19, 2026
Manufacturer
National Semiconductor Corp
Mfr Part #
LM2577S
Series
LM2577
Category
Switching Regulator
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
TopologyBoost
Switch Current3A
Input Voltage3.5V-40V
Physical & Thermal
Package / CaseTO-263-5
Mounting TypeSurface Mount
SeriesLM2577
Operating Temperature-40°C ~ 125°C
Classification & Lifecycle
CategorySwitching Regulator
TypeAnalog
Part StatusNRND

3A step-up (boost) switching regulator, 3.5-40V in, up to 60V out

Part Activity

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Engineering FAQ

What are the key specifications of LM2577S?
Topology: Boost; Switch Current: 3A; Input Voltage: 3.5V-40V.
What package is LM2577S supplied in?
LM2577S is supplied in the TO-263-5 package, surface mount, rated -40°C ~ 125°C.
Can ZDI source LM2577S beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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