Dual 3A USB DCP Charger

Industry's Smallest Dual 3A Port Automotive DCP Charger

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The MAX20047 is an automotive-grade, low-cost, small-footprint dual-port charger IC designed for automotive charging applications. It combines a fully synchronous 6A step-down buck converter with integrated high-side and low-side FETs capable of operating with input voltages from 3.5V to 36V and delivering 5.2V output voltage. The IC features integrated iPod®/iPhone® 1.0A and iPad® 2.1A dedicated charging modes.

The IC delivers up to 3A of charging current with 93% efficiency per port through integrated switches with programmable current limit and thermal foldback control. The buck converter switching frequency is programmable from 0.4MHz to 2.2MHz. Short-to-ground protection and overcurrent protection are also provided on the protected HVBUS outputs to protect the internal BUS power rail from an overcurrent fault. The MAX20047 offers short-to-battery up to +18V and can also be ordered with spread-spectrum operation to reduce EMI.

iPod, iPhone, and iPad are registered trademarks of Apple Inc..

Design Solution: Beat the Heat: Build a Compact, Multi-Standard Dual USB Charger ›


  • Automotive Cigarette Lighter Adapters
  • Power Supply for Linear Chargers
  • USB Dedicated Charging Ports (DCP)
Part NumberSupported Charging ConfigurationsSupported USB Battery Charging SpecificationCharging ModesCDP EmulationRemote Wake-Up SupportVBUS Reset Time
Apple 0.5A
Apple 1.0A
Apple 2.1A
China YD/T 1591-2009
Samsung Galaxy Tablet 2A
USB Dedicated Charger
Auto Detection with Apple 1A
Auto Detection with Apple 2A
Forced Dedicated Charger
Samsung Galaxy Tablet 2A
See All USB Host Adapter Emulator (23)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX20047EVKIT: Evaluation Kit for the MAX20047
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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