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ADI LTC3556EUFD#TRPBF product image
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ADI LTC3556EUFD#TRPBF

Manufacturer
ADI
MPN
LTC3556EUFD#TRPBF
LCSC Part #
C685033
Packaging
QFN-28-EP(4x5)
Customer #
Key Attributes
I2C QFN-28-EP(4x5) Power Management - Specialized RoHS
DatasheetADI LTC3556EUFD#TRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 8.7762$ 8.78
200+$ 3.3972$ 679.44
500+$ 3.2784$ 1639.20
1,000+$ 3.2182$ 3218.20
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Power Management - Specialized
ManufacturerADI
PackagingQFN-28-EP(4x5)
FeaturesAdjustable current limiting;Dynamic voltage scaling;Power-on timing control;Built-in LDO regulator;Operating status indication;External compensation
Operating Temperature-40℃~+85℃
InterfaceI2C
Output Voltage3.4V~4.7V;4.5V~4.7V
Voltage - Supply4.35V~5.5V
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Introduction

AI Translation

The LTC3556 is a highly integrated power management and battery charger IC for Li-Ion/Polymer battery applications. It includes a high efficiency current limited switching PowerPath manager with automatic load prioritization, a battery charger, an ideal diode, and three synchronous switching regulators (two bucks and one buck-boost). Designed specifically for USB applications, the LTC3556’s switching power manager automatically limits input current to a maximum of either 100mA or 500mA for USB applications or 1A for adapter-powered applications. The LTC3556’s switching input stage transmits nearly all of the 2.5W available from the USB port to the system load with minimal power wasted as heat. This feature allows the LTC3556 to provide more power to the application and eases the constraint of thermal budgeting in small spaces. The two buck regulators can provide up to 400mA each and the buck-boost can deliver 1A. The LTC3556 is available in the low profile 28-pin (4mm × 5mm × 0.75mm) QFN surface mount package.

Features

AI Translation
  • High Effciency Switching PowerPathTM Controller with Bat-TrackTM Adaptive Output Control
  • Programmable USB or Wall Current Limit (100mA/500mA/1A)
  • Full Featured Li-Ion/Polymer Battery Charger
  • Instant-On Operation with a Discharged Battery
  • 1.5A Maximum Charge Current
  • Internal 180mΩ Ideal Diode Plus External Ideal Diode
  • Controller Powers Load in Battery Mode
  • Low No-Load IQ when Powered from BAT (<30µA)
  • Dual High Effciency Buck DC/DCs (400mA/400mA IOUT)
  • High Effciency Buck-Boost DC/DC (1A IOUT)
  • All Regulators Operate at 2.25MHz
  • Dynamic Voltage Scaling on Two Buck Outputs
  • I2C Control of Enables, Mode, Two VOUT Settings
  • ENALL Pin with Power-Up Sequence Control
  • Low No-Load Quiescent Current: 20µA Each

Applications

AI Translation
  • HDD-Based MP3 Players
  • PDAs
  • GPS
  • PMPs
  • Other USB-Based Handheld Products