Datasheet for LTC3880:
- Manufacturer Part Number : LTC3880
- Manufacturer : AD
- Description : Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management
- Series : LTC3880
- Reference Price : USD 4.28
- Our Price : We have a better price, contact us by email
- Product Type : Switching Regulators
- Function : Step-Down (Buck) Regulators
- Current Suggest : Recommended for New Designs
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : LTC3880
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for LTC3880. If you need any more information about LTC3880, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
- PMBus/I2C Compliant Serial Interface
- Telemetry Read Back includes VIN, IIN, VOUT, IOUT, Temperature 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
- Internal EEPROM with ECC and Fault Logging
- Integrated Powerful N-Channel MOSFET Gate Drivers
- Wide VIN Range: 4.5V to 24V
- VOUT Range: 0.5V to 5.4V (4V on VOUT0)
- Analog Current Mode Control Loop
- Accurate PolyPhase® Current Sharing for Up to 6 Phases
- Available in a 40-Pin (6mm × 6mm) QFN Package
- AEC-Q100 Qualified for Automotive Applications
Power Conversion
The LTC3880/LTC3880-1 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™ software development tool with graphical user interface (GUI).
Switching frequency, output voltage, and device address can be programmed using external configuration resistors. 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 LTC3880 incorporates a 5V linear regulator while the LTC3880-1 uses an external 5V supply for minimum power loss. See comparison to LTC3887 below.
| VOUT Start-Up Time | Max VOUT0/1 | Fast ADC Mode for 1 Parameter | |
| LTC3887/LTC3887-1 | 35ms | 5.5V/5.5V | No |
| LTC3880/LTC3880-1 | 120ms | 4V/5.4V | No |
Applications
- High Current Distributed Power Systems
- Telecom, Datacom and Storage Systems
- Intelligent Energy Efficient Power Regulation
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
