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ADI LTC3887IUJ-1#TRPBF product image
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ADI LTC3887IUJ-1#TRPBF

Manufacturer
ADI
MPN
LTC3887IUJ-1#TRPBF
LCSC Part #
C686963
Packaging
QFN-40-EP(6x6)
Customer #
Key Attributes
2 Adjustable 500mV~5.5V Step-down type QFN-40-EP(6x6) DC DC Switching Controllers RoHS
DatasheetADI LTC3887IUJ-1#TRPBF
RoHS Compliance1 documents available
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QtyUnit Price(Reference Only)Total Amount
1+$ 11.4711$ 11.47
200+$ 4.4406$ 888.12
500+$ 4.2832$ 2141.60
1,000+$ 4.2075$ 4207.50
Standard Packaging2000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerADI
PackagingQFN-40-EP(6x6)
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
Output Current-
FeaturesAdjustable current limiting;Frequency synchronization;Output voltage differential sensing;Built-in LDO regulator
Number of Channels2
TopologyBuck
Frequency - Switching1MHz
Operating Voltage4.5V~24V
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage500mV~5.5V
FunctionStep-down type
Quiescent Current20mA
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Introduction

AI Translation

The LTC3887/LTC3887-1/LTC3887-2 are dual, PolyPhase DC/DC synchronous step-down switching regulator controllers with an I²C-based PMBus compliant serial interface. The controllers use a constant frequency, current mode architecture that is supported by LTpowerPlay, a software development tool with graphical user interface (GUI). Switching frequency, channel phasing, output voltage, and device address can be programmed using external configuration resistors. Additionally, parameters can be set via the digital interface or stored in EEPROM. Voltage, current, internal/external temperature and fault status can be read back through the bus interface. The LTC3887 has integrated gate drivers. The LTC3887-1 has three-state PWM pins to drive DrMOS power stages. The LTC3887-2 has gate drivers and no LDO and supports VIN up to 34V. The LTC3887 is an enhanced version of the LTC3880 with greater output voltage range and more digital features.

Features

AI Translation
  • PMBus/I2C Compliant Serial Interface
  • Telemetry Read Back includes VIN, IIN, VOUT, IOUT, Temperature, Duty Cycle and Faults
  • Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV and Frequency Synchronization (250kHz to 1MHz)
  • ±0.5% Output Voltage Accuracy Over Temperature
  • Integrated 16-Bit ADC
  • VOUT Range: 0.5V to 5.5V (VOUT0, VOUT1)
  • Internal EEPROM and Fault Logging with ECC
  • Integrated N-Channel MOSFET Gate Drivers (LTC3887)
  • Minimum On-Time 45ns
  • Wide VIN Range: 4.5V to 24V
  • Analog Current Mode Control Loop
  • Remote Differential Sense for PolyPhase Applications
  • Accurate PolyPhase Current Sharing for Up to Six Phases
  • Available in a 40-Pin (6mm×6mm) QFN Package
  • AEC-Q100 Qualified for Automotive Applications

Applications

AI Translation
  • High Current Distributed Power Systems
  • Telecom, Datacom and Storage Systems
  • Intelligent Energy Efficient Power Regulation