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

What are the specifications of ST1S31D-R?

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

Where can I find the ST1S31D-R datasheet?

ST1S31D-R Datasheet Download

Official datasheet from STMicroelectronics

What are equivalent replacements for ST1S31D-R?

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.

Related Guides

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