LTC3889EUKG#TRPBF
Active60V DUAL OUTPUT STEP-DOWN CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT
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LTC3889EUKG#TRPBF
Active60V DUAL OUTPUT STEP-DOWN CONTROLLER WITH DIGITAL POWER SYSTEM MANAGEMENT
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3889EUKG#TRPBF |
|---|---|
| Frequency - Switching [Max] | 500 kHz |
| Frequency - Switching [Min] | 85 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 Type | Programmable |
| Package / Case | 46 Leads |
| Package / Case | Exposed Pad, 52-WFQFN |
| Supplier Device Package | 52-QFN (7x8) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 60 V |
| Voltage - Input (Min) [Min] | 5 V |
| Voltage - Output (Max) [Max] | 40 V |
| Voltage - Output (Min/Fixed) | 1 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 2000 | $ 11.22 | |
Description
General part information
LTC3889 Series
The LTC3889 is a dual PolyPhase DC/DC synchronous step-down switching regulator controller with I2C-based PMBus compliant serial interface. This controller employs a constant-frequency, current-mode architecture, with high voltage input and output capability along with programmable loop compensation. The LTC3889 is supported by the LTpowerPlay™software development tool with graphical user interface (GUI).The EXTVCCpin supports voltages up to 14V allowing for optimized circuit efficiency and die temperature, and for the controller output to supply the chip power. Switching frequency, output voltage, and device address can be programmed both by digital interface as well as external configuration resistors. Parameters can be set via the digital interface or stored in EEPROM. Both outputs have an independent power good indicator andFAULTfunction.The LTC3889 can be configured for discontinuous (pulse-skipping) mode or continuous inductor current mode.APPLICATIONSTelecom, Datacom, and Storage SystemsIndustrial and Point of Load Applications