LM51581RTER Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock

Boost, Flyback, SEPIC Switching Regulator IC Positive Adjustable 1.5V 1 Output 1.63A (Switch) 16-WFQFN Exposed Pad Suited for wide operating range for battery applications – 3.2-V to 60-V input operating range (65-V abs max) – 83-V maximum output (85-V abs max) – Minimum boost supply voltage of 1.5 V when BIAS ≥ 3.2 V – Input transient protection up to 65 V – Minimized battery drain • Low shutdown current (IQ ≤ 2.6 µA) • Low operating current (IQ ≤ 670 µA) • Small solution size and low cost – M

ACTIVEIntegrated CircuitVerified May 2026
Package / Visual Reference
LM51581RTERQuad Flat No-Lead
Quick Facts
Manufacturer
Texas Instruments
Package
Quad Flat No-Lead
Pin Count
17
Lifecycle
ACTIVE
Category
Integrated Circuit
Price
From $1.8359(MOQ 25)
Temp Range
-40.0°C to 125.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Specifications

Pbfree CodeYes
YTEOL15
Analog IC - Other TypeSWITCHING REGULATOR
Control ModeCURRENT-MODE
Control TechniquePULSE WIDTH MODULATION
Input Voltage-Max60V
Input Voltage-Min1.5V
Input Voltage-Nom12V
JESD-30 CodeS-PQCC-N16
JESD-609 Codee4
Number of Functions1
Number of Outputs1
Output Current-Max2.12A
Output Voltage-Max83V
Output Voltage-Min2V
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeLCC16,.12SQ,20
Package ShapeSQUARE
Package StyleCHIP CARRIER, VERY THIN PROFILE
Peak Reflow Temperature (Cel)260
Supply Current-Max (Isup)0.85mA
Surface MountYES
Switcher ConfigurationBUCK-BOOST
Switching Frequency-Max2200kHz
TechnologyBICMOS
Terminal FinishNickel/Palladium/Gold (Ni/Pd/Au)
Terminal FormNO LEAD
Terminal Pitch0.5mm
Terminal PositionQUAD
PackageQuad Flat No-Lead

Compliance & Regulatory

RoHS StatusCompliant
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.90

Datasheet

LM51581RTER Datasheet Download

Official datasheet from Texas Instruments

Alternate & Equivalent Parts

Compatible alternatives and drop-in replacements for LM51581RTER:

LM51581QRTERQ1Texas Instruments

Switching Regulator, Current-mode, 2.12A, 2200kHz Switching Freq-Max, BICMOS, PQCC16

View Part →

Frequently Asked Questions

What is the price of LM51581RTER?

LM51581RTER is priced from $1.8359 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is LM51581RTER in stock?

LM51581RTER 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 LM51581RTER?

You can buy LM51581RTER from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for LM51581RTER from Texas Instruments.

What is the datasheet for LM51581RTER?

The official LM51581RTER 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 LM51581RTER come in?

LM51581RTER is available in Quad Flat No-Lead packaging. See the package diagram and pinout above for detailed dimensional information.

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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 $1.8359
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
25+$3.2632$81.58
100+$2.9543$295.43
101+$1.9851$200.50
131+$1.9105$250.28
164+$1.8359$301.09
pcs
Unit price: $3.2632 · Total: $81.58

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