Datasheet Details
| Part number | LTC3887 |
|---|---|
| Manufacturer | Analog Devices |
| File Size | 3.49 MB |
| Description | Dual Output PolyPhase Step-Down DC/DC Controller |
| Datasheet | LTC3887-AnalogDevices.pdf |
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Overview: LTC3887/LTC3887-1/ LTC3887-2 Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System.
| Part number | LTC3887 |
|---|---|
| Manufacturer | Analog Devices |
| File Size | 3.49 MB |
| Description | Dual Output PolyPhase Step-Down DC/DC Controller |
| Datasheet | LTC3887-AnalogDevices.pdf |
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nn PMBus/I2C Compliant Serial Interface nn Telemetry Read Back includes VIN, IIN, VOUT, IOUT, Temperature, Duty Cycle and Faults nn Programmable Voltage, Current Limit, Digital Soft-Start/Stop, Sequencing, Margining, OV/UV and Frequency Synchronization (250kHz to 1MHz) nn ±0.5% Output Voltage Accuracy Over Temperature nn Integrated 16-Bit ADC nn VOUT Range: 0.5V to 5.5V (VOUT0, VOUT1) nn Internal EEPROM and Fault Logging with ECC nn Integrated N-Channel MOSFET Gate Drivers (LTC3887) nn Minimum On-Time 45ns nn Wide VIN Range: 4.5V to 24V nn Analog Current Mode Control Loop nn Remote Differential Sense for PolyPhase® Applications nn Accurate PolyPhase Current Sharing for Up to Six Phases nn Available in a 40-Pin (6mm × 6mm) QFN Package nn AEC-Q100 Qualified for Automotive Applications APPLICATIONS nn High Current Distributed Power Systems nn Telecom, Datacom and Storage Systems nn Intelligent Energy Efficient Power Regulation The LTC®3887/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.
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| Part Number | Description |
|---|---|
| LTC3887-1 | Dual Output PolyPhase Step-Down DC/DC Controller |
| LTC3887-2 | Dual Output PolyPhase Step-Down DC/DC Controller |
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| LTC3886-1 | 60V Dual Output Step-Down Controller |
| LTC3888 | Dual Loop 8-Phase Step-Down DC/DC Controller |
| LTC3888-1 | Dual Loop 8-Phase Step-Down DC/DC Controller |
| LTC3888-2 | Dual Loop 8-Phase Step-Down DC/DC Controller |
| LTC3889 | 60V Dual Output Step-Down Controller |
| LTC3829 | Single Output Synchronous Step-Down DC/DC Controller |
| LTC3871 | Bidirectional PolyPhase Synchronous Buck or Boost Controller |