LTC3864MPMSE#PBF
Active60V LOW IQSTEP-DOWN DC/DC CONTROLLER WITH 100% DUTY CYCLE CAPABILITY
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LTC3864MPMSE#PBF
Active60V LOW IQSTEP-DOWN DC/DC CONTROLLER WITH 100% DUTY CYCLE CAPABILITY
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3864MPMSE#PBF |
|---|---|
| Clock Sync | False |
| Control Features | Current Limit, Power Good, Soft Start, Frequency Control, Enable |
| Duty Cycle (Max) [Max] | 100 % |
| Frequency - Switching [Max] | 850 kHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -55 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | Exposed Pad, 12-TSSOP |
| Package / Case | 0.118 in, 3 mm |
| Supplier Device Package | 12-MSOP-EP |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 60 V |
| Voltage - Supply (Vcc/Vdd) [Min] | 3.5 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 | $ 18.93 | |
| 10 | $ 13.71 | |||
| 25 | $ 12.37 | |||
| 100 | $ 10.87 | |||
| 250 | $ 10.15 | |||
| 500 | $ 9.76 | |||
Description
General part information
LTC3864 Series
The LTC3864 is a robust, high voltage step-down DC/DC controller optimized for automotive and industrial applications. It drives a P-channel power MOSFET switch allowing 100% duty cycle operation. The wide input and output voltage ranges cover a multitude of applications. This device has been verified with the failure mode and effects analysis (FMEA) procedure for operation during failure conditions.The LTC3864 offers excellent light load efficiency, drawing only 40μA quiescent current in a user programmable Burst Mode operation. Its peak current mode, constant frequency PWM architecture provides for good control of switching frequency and output current limit. The switching frequency can be programmed from 50kHz to 850kHz with an external resistor and can be synchronized to an external clock from 75kHz to 750kHz.The LTC3864 offers programmable soft-start or output tracking. Safety features include overvoltage protection, overcurrent and short-circuit protection including frequency foldback and a power good output signal.The LTC3864 is available in thermally enhanced 12-Pin MSOP and 3mm × 4mm DFN packages.APPLICATIONSIndustrial and Automotive Power SuppliesTelecom Power SuppliesDistributed Power Systems
Documents
Technical documentation and resources