STJK(HK) ELECTRONICS CO.,LIMITED
STJK(HK) ELECTRONICS CO.,LIMITED Quality first, reputation first, service first, customers first.
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PRODUCT DESCRIPTION
The LTC®3786 is a high performance synchronous boost converter controller that drives all N-channel power MOSFETs. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, allowing the LTC3786 to be used in high power boost applications.
A 4.5V to 38V input supply range encompasses a wide range of system architectures and battery chemistries. When biased from the output of the boost converter or another auxiliary supply, the LTC3786 can operate from an input supply as low as 2.5V after start-up.
The 55µA no-load quiescent current extends operating run time in battery-powered systems. The operating frequency can be set for a 50kHz to 900kHz range or synchronized to an external clock using the internal PLL.
The LTC3786 also features a precision 1.2V reference and a power good output indicator. The SS pin ramps the output voltage during start-up. The PLLIN/MODE pin selects among Burst Mode® operation, pulse-skipping mode or continuous inductor current mode at light loads.
PRODUCT PROPERTIES
| Product Status | Active |
| Output Type | Transistor Driver |
| Function | Step-Up, Step-Up/Step-Down |
| Output Configuration | Positive |
| Topology | Boost, Flyback, SEPIC |
| Number of Outputs | 1 |
| Output Phases | 1 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 38V |
| Frequency - Switching | 105kHz ~ 760kHz |
| Duty Cycle (Max) | 96% |
| Synchronous Rectifier | Yes |
| Clock Sync | No |
| Serial Interfaces | - |
| Control Features | Current Limit, Enable, Frequency Control, Power Good, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-QFN (3x3) |
| Base Product Number | LTC3786 |
