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STMicroelectronics

L5973D

Buck Converter · HSOP-8 · Power Management IC
Part Status: Active
Data last refreshed Jun 19, 2026
Manufacturer
STMicroelectronics
Mfr Part #
L5973D
Series
L5973
Category
Buck Converter
Datasheet
View datasheet ↗
Availability & Pricing
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Product Attributes

Electrical & Parametric
Input Voltage4 V ~ 36 V
Output Current2.5 A
Switching Freq250 kHz
Physical & Thermal
Package / CaseHSOP-8
Mounting TypeSurface Mount
SeriesL5973
Operating Temperature-40°C ~ 150°C
Classification & Lifecycle
CategoryBuck Converter
TypePower Management IC
Part StatusActive

2.5 A step-down switching regulator, 4-36 V input

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Part Activity

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Engineering FAQ

What are the key specifications of L5973D?
Input Voltage: 4 V ~ 36 V; Output Current: 2.5 A; Switching Freq: 250 kHz.
What package is L5973D supplied in?
L5973D is supplied in the HSOP-8 package, surface mount, rated -40°C ~ 150°C.
Can ZDI source L5973D 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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