LTC3884ERHE#PBF
ActiveDUAL OUTPUT POLYPHASE STEP-DOWN CONTROLLER WITH SUB-MILLIOHM DCR SENSING AND DIGITAL POWER SYSTEM MANAGEMENT
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LTC3884ERHE#PBF
ActiveDUAL OUTPUT POLYPHASE STEP-DOWN CONTROLLER WITH SUB-MILLIOHM DCR SENSING AND DIGITAL POWER SYSTEM MANAGEMENT
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3884ERHE#PBF |
|---|---|
| Clock Sync | True |
| Control Features | Frequency Control, Power Good, Phase Control, Enable |
| Frequency - Switching [Max] | 1 MHz |
| Frequency - Switching [Min] | 200 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Transistor Driver |
| Package / Case | 48-WFQFN Exposed Pad |
| Serial Interfaces | PMBus, I2C |
| Supplier Device Package | 48-GQFN (5x6) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 38 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 | $ 18.41 | |
| 10 | $ 13.31 | |||
| 25 | $ 12.00 | |||
| 100 | $ 10.54 | |||
| 250 | $ 9.83 | |||
| 500 | $ 9.43 | |||
Description
General part information
LTC3884LTC3884-1 Series
The LTC3884/LTC3884-1 are dual output PolyPhase DC/DC synchronous step-down switching regulator controllers with an I2C-based PMBus compliant serial interface. The controllers employ a constant-frequency current mode architecture, together with a unique scheme to provide excellent performance for sub-milliohm DCR applications. The LTC3884/LTC3884-1 are supported by the LTpowerPlay®software development tool with graphical user interface (GUI).Programmable loop compensation allows the controller to be compensated digitally. Switching frequency, channel phasing, output voltage, and device address can be programmed both by the digital interface as well as external configuration resistors. Additionally, parameters can be set via the digital interface or stored in EEPROM. Both outputs have independent power good indicators andFAULTfunction. The LTC3884 has integrated gate drivers.The LTC3884-1 has three-state PWM pins to drive power blocks or DrMOS power stages.APPLICATIONSTelecom, Datacom, and Storage SystemsIndustrial and Point-of-Load Applications
Documents
Technical documentation and resources