MAX17543ATP+ Maxim Integrated Integrated Circuit (Quad Flat No-Lead) In Stock

MAXIM INTEGRATED PRODUCTS - MAX17543ATP+ - DC/DC Controller, Synchronous Buck (Step Down), 4.5 V to 42 V, 1 Output, 2.2 MHz, TQFN-20

ACTIVEIntegrated CircuitVerified Jul 2026
Package / Visual Reference
MAX17543ATP+Quad Flat No-Lead
Quick Facts
Manufacturer
Maxim Integrated
Package
Quad Flat No-Lead
Pin Count
20
Lifecycle
ACTIVE
Category
Integrated Circuit
Price
From $2.9685(MOQ 1)
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 MAX17543ATP+?

Manufacturer Package Code20-LFCSP-4X4X0.75
Date Of Intro2014-09-24
YTEOL10
Analog IC - Other TypeSWITCHING REGULATOR
Control ModeCURRENT-MODE
Control TechniquePWM/PFM
Input Voltage-Max42V
Input Voltage-Min4.5V
Input Voltage-Nom24V
JESD-30 CodeS-PQCC-N20
JESD-609 Codee3
Number of Functions1
Output Current-Max2.5A
Output Voltage-Max37.8V
Output Voltage-Min0.9V
Package Body MaterialPLASTIC/EPOXY
Package Equivalence CodeLCC20,.16SQ,20
Package ShapeSQUARE
Package StyleCHIP CARRIER, HEAT SINK/SLUG, VERY VERY THIN PROFILE
Peak Reflow Temperature (Cel)260
Surface MountYES
Switcher ConfigurationBUCK
Switching Frequency-Max2450kHz
TechnologyBICMOS
Temperature GradeAUTOMOTIVE
Terminal FinishMatte Tin (Sn) - annealed
Terminal FormNO LEAD
Terminal Pitch0.5mm
Terminal PositionQUAD
Time@Peak Reflow Temperature-Max (s)30
PackageQuad Flat No-Lead

Compliance & Regulatory

RoHS StatusCompliant
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8542.39.00.60
Country of OriginJapan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA

Where can I find the MAX17543ATP+ datasheet?

MAX17543ATP+ Datasheet Download

Official datasheet from Maxim Integrated

What are equivalent replacements for MAX17543ATP+?

Compatible alternatives and drop-in replacements for MAX17543ATP+:

Frequently Asked Questions

What is the price of MAX17543ATP+?

MAX17543ATP+ is priced from $2.9685 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is MAX17543ATP+ in stock?

MAX17543ATP+ 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 MAX17543ATP+?

You can buy MAX17543ATP+ from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for MAX17543ATP+ from Maxim Integrated.

What is the datasheet for MAX17543ATP+?

The official MAX17543ATP+ datasheet from Maxim Integrated contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does MAX17543ATP+ come in?

MAX17543ATP+ is available in Quad Flat No-Lead packaging. See the package diagram and pinout above for detailed dimensional information.

Related Guides

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Factory-direct from China distributors, low MOQ
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About Maxim Integrated

Maxim Integrated is a leading electronic component manufacturer. FindMyChip sources Maxim Integrated ICs directly from authorized China distributors, offering competitive pricing and reliable stock.

AvailabilityIn Stock
Reference Price (USD)
From $2.9685
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
1+$5.9400$5.94
10+$4.5500$45.50
49+$4.1303$202.38
63+$3.9926$251.53
84+$3.5796$300.69
150+$2.9685$445.28
pcs
Unit price: $5.9400 · Total: $5.94

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

We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.

SK
Sarah Kim
VP Engineering, NovaBit Electronics, South Korea