LTC3777ILXE#PBF
Active150V VIN AND VOUT SYNCHRONOUS 4-
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LTC3777ILXE#PBF
Active150V VIN AND VOUT SYNCHRONOUS 4-
Deep-Dive with AI
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC3777ILXE#PBF |
|---|---|
| Clock Sync | True |
| Control Features | Enable, Soft Start, Frequency Control, Current Limit |
| Duty Cycle (Max) [Max] | 90 % |
| Frequency - Switching [Max] | 600 kHz |
| Frequency - Switching [Min] | 50 kHz |
| Function | Step-Up/Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Package / Case | 48-LQFP Exposed Pad |
| Supplier Device Package | 48-eLQFP (7x7) |
| Synchronous Rectifier | True |
| Topology | Buck-Boost |
| Voltage - Supply (Vcc/Vdd) [Max] | 150 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 | Tray | 1 | $ 24.54 | |
| 10 | $ 18.08 | |||
| 25 | $ 16.42 | |||
| 80 | $ 14.83 | |||
| 250 | $ 13.68 | |||
| 500 | $ 13.54 | |||
Description
General part information
LTC3777 Series
The LTC3777 is a high performance buck-boost switching regulator controller that operates from input voltages above, below or equal to the output voltage. The constant frequency current mode architecture allows a phase-lockable frequency of up to 600kHz, while an input/output constant current loop provides support for battery charging. The 150V integrated switching bias supply is a high efficiency step-down regulator that draws only 12μA typical DC supply current with a regulated output voltage at no load.With a wide 4.5V to 150V input and output range and seamless transfers between operating regions, the LTC3777 is ideal for industrial, telecom and battery powered systems.The LTC3777 features a power good output indicator and a MODE pin to select between pulse-skipping mode or forced continuous mode of operation. The PLLIN pin allows the IC to be synchronized to an external clock. The SS pin ramps the output voltage during start-up. Current foldback limits MOSFET heat dissipation during short circuit conditions.ApplicationsIndustrial, Transportation, Medical, Military, Avionics
Documents
Technical documentation and resources