LTC3880EUJ-1#PBF
ActiveDUAL OUTPUT POLYPHASE STEP-DOWN DC/DC CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT
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LTC3880EUJ-1#PBF
ActiveDUAL OUTPUT POLYPHASE STEP-DOWN DC/DC CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3880EUJ-1#PBF |
|---|---|
| Clock Sync | True |
| Control Features | Frequency Control, Enable |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 105 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 40-WFQFN Exposed Pad |
| Serial Interfaces | PMBus, I2C |
| Supplier Device Package | 40-QFN (6x6) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 24 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 11.34 | |
| 10 | $ 8.12 | |||
| 25 | $ 7.96 | |||
Description
General part information
LTC3880 Series
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.VOUTStart-Up TimeMax VOUT0/1Fast ADC Mode for 1 ParameterLTC3887/LTC3887-135ms5.5V/5.5VNoLTC3880/LTC3880-1120ms4V/5.4VNoApplicationsHigh Current Distributed Power SystemsTelecom, Datacom and Storage SystemsIntelligent Energy Efficient Power Regulation
Documents
Technical documentation and resources