ST1S31D-R STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock

STMicroelectronics, ST1S31D-R Step-Down Switching Regulator 3A Adjustable 8-Pin, SOIC

OBSOLETEIntegrated CircuitVerified Jun 2026
Package / Visual Reference
ST1S31D-RSmall Outline Packages
Quick Facts
Manufacturer
STMicroelectronics
Package
Small Outline Packages
Pin Count
8
Lifecycle
OBSOLETE
Category
Integrated Circuit
Price
From $0.7300(MOQ 10)
Temp Range
-40.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Specifications

YTEOL0
Additional FeatureOUTPUT VOLTAGE IN ADJUSTABLE MODE FROM 0.8
Analog IC - Other TypeSWITCHING REGULATOR
Control ModeCURRENT-MODE
Control TechniquePULSE WIDTH MODULATION
Input Voltage-Max5.5V
Input Voltage-Min2.8V
Input Voltage-Nom5V
JESD-30 CodeR-PDSO-G8
Number of Functions1
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeSOP8,.25
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE
Peak Reflow Temperature (Cel)NOT SPECIFIED
Qualification StatusNot Qualified
Surface MountYES
Switcher ConfigurationBUCK
Switching Frequency-Max1900kHz
Temperature GradeAUTOMOTIVE
Terminal FormGULL WING
Terminal Pitch1.27mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)NOT SPECIFIED
PackageSmall Outline Packages

Compliance & Regulatory

RoHS StatusCompliant
ECCNEAR99
HTS Code8542.39.00.60

Datasheet

ST1S31D-R Datasheet Download

Official datasheet from STMicroelectronics

Alternate & Equivalent Parts

No known alternates. Submit an RFQ and our team can suggest alternatives.

Frequently Asked Questions

What is the price of ST1S31D-R?

ST1S31D-R is priced from $0.7300 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is ST1S31D-R in stock?

ST1S31D-R is listed as in stock at FindMyChip, sourced from authorized distributors, and ships worldwide with typical 3-7 business day lead time. Submit an RFQ for current quantity pricing, MOQ, and confirmed availability.

Where can I buy ST1S31D-R?

You can buy ST1S31D-R from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for ST1S31D-R from STMicroelectronics.

What is the datasheet for ST1S31D-R?

The official ST1S31D-R datasheet from STMicroelectronics contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does ST1S31D-R come in?

ST1S31D-R is available in Small Outline Packages packaging. See the package diagram and pinout above for detailed dimensional information.

Why Buy from FindMyChip

Authorized Source
Verified supply chain with full traceability & inspection
$
Competitive Pricing
Factory-direct from China distributors, low MOQ
Fast Shipping
DHL Express 3–5 days · FedEx/UPS 5–7 days worldwide
Quality Guaranteed
30-day replacement for defective parts, no questions asked

About STMicroelectronics

STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.

AvailabilityIn Stock
Reference Price (USD)
From $0.7300
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
10+$1.1300$11.30
100+$0.7700$77.00
500+$0.7300$365.00
pcs
Unit price: $1.1300 · Total: $11.30

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.

MR
Marco Rossi
CTO, AutoDrive Systems, Italy