LM51551DSST Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock

Switching Controllers 2.2-MHz wide VIN nonsynchronous boost, flyback, & SEPIC controller with hiccup 12-WSON -40 to 125

ACTIVEIntegrated CircuitVerified May 2026
Package / Visual Reference
LM51551DSSTSmall Outline No-lead
Quick Facts
Manufacturer
Texas Instruments
Package
Small Outline No-lead
Pin Count
13
Lifecycle
ACTIVE
Category
Integrated Circuit
Price
From $1.4376(MOQ 10)
Temp Range
-40.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Specifications

Pbfree CodeYes
Date Of Intro2018-12-16
YTEOL15
Analog IC - Other TypeSWITCHING CONTROLLER
Control ModeCURRENT-MODE
Control TechniquePULSE WIDTH MODULATION
Input Voltage-Max45V
Input Voltage-Min1.5V
Input Voltage-Nom12V
JESD-30 CodeR-PDSO-N12
JESD-609 Codee4
Number of Functions1
Number of Outputs1
Output Voltage-Max300V
Output Voltage-Min1.5V
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeSOLCC12,.08,20
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel)260
Surface MountYES
Switcher ConfigurationBUCK-BOOST
Switching Frequency-Max2200kHz
Temperature GradeAUTOMOTIVE
Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)
Terminal FormNO LEAD
Terminal Pitch0.5mm
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)30
PackageSmall Outline No-lead

Compliance & Regulatory

RoHS StatusCompliant
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.90

Datasheet

LM51551DSST Datasheet Download

Official datasheet from Texas Instruments

Alternate & Equivalent Parts

Compatible alternatives and drop-in replacements for LM51551DSST:

LM51551DSSRTexas Instruments

Switching Controller, Current-mode, 2200kHz Switching Freq-Max, PDSO12

View Part →
XLM51551QDSSTQ1Texas Instruments

Switching Controller, Current-mode, 2420kHz Switching Freq-Max, PDSO12

View Part →
LM51551QDSSTQ1Texas Instruments

Switching Controller, Current-mode, 15A, 2200kHz Switching Freq-Max, BICMOS, PDSO12

View Part →
LM51551QDSSRQ1Texas Instruments

Switching Controller, Current-mode, 15A, 2200kHz Switching Freq-Max, BICMOS, PDSO12

View Part →

Frequently Asked Questions

What is the price of LM51551DSST?

LM51551DSST is priced from $1.4376 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is LM51551DSST in stock?

LM51551DSST is currently available at FindMyChip. We maintain stock from authorized distributors and ship worldwide with typical 3-7 business day lead time.

Where can I buy LM51551DSST?

You can buy LM51551DSST from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for LM51551DSST from Texas Instruments.

What is the datasheet for LM51551DSST?

The official LM51551DSST datasheet from Texas Instruments contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does LM51551DSST come in?

LM51551DSST is available in Small Outline No-lead packaging. See the package diagram and pinout above for detailed dimensional information.

Related Guides

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About Texas Instruments

Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.

AvailabilityIn Stock
Reference Price (USD)
From $1.4376
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
10+$2.0450$20.45
25+$1.8704$46.76
100+$1.6781$167.81
1250+$1.4728$1840.96
1750+$1.4548$2545.95
2500+$1.4376$3594.00
pcs
Unit price: $2.0450 · Total: $20.45

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

The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.

RP
Rajesh Patel
Procurement Manager, VoltEdge Energy, India