LTC7803EUD#TRPBF
ActiveDC/DC CONTROLLER, SYNCHRONOUS BUCK, 4.5V TO 40V SUPPLY, 1 OUTPUT, 100% DUTY CYCLE, 3MHZ, QFN-EP-16
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LTC7803EUD#TRPBF
ActiveDC/DC CONTROLLER, SYNCHRONOUS BUCK, 4.5V TO 40V SUPPLY, 1 OUTPUT, 100% DUTY CYCLE, 3MHZ, QFN-EP-16
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC7803EUD#TRPBF |
|---|---|
| Clock Sync | True |
| Control Features | Phase Control, Frequency Control, Enable |
| Duty Cycle (Max) [Max] | 100 % |
| Frequency - Switching [Max] | 3 MHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | 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 | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-QFN (3x3) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 40 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
Description
General part information
LTC7803 Series
The LTC7803 is a high performance, 100% Duty Cycle Capable, synchronous step-down DC/DC switching regulator controller that drives an all N-channel power MOSFET stage. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements. A constant frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. The LTC7803 operates from a wide 4.5V to 40V input supply range.The very low no-load quiescent current extends operating runtime in battery powered systems. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values. The MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode at light loads.The LTC7803 additionally features spread spectrum operation which significantly reduces the peak radiated and conducted noise on both the input and output supplies, making it easier to comply with electromagnetic interference (EMI) standards.APPLICATIONSAutomotive and TransportationIndustrialMilitary/AvionicsTelecommunications