LTC7805RUFDM#TRPBF
Active40V LOW IQ, DUAL, 2-PHASE 100% DUTY CYCLE SYNCHRONOUS STEP-DOWN CONTROLLER
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LTC7805RUFDM#TRPBF
Active40V LOW IQ, DUAL, 2-PHASE 100% DUTY CYCLE SYNCHRONOUS STEP-DOWN CONTROLLER
Technical Specifications
Parameters and characteristics for this part
| Specification | LTC7805RUFDM#TRPBF |
|---|---|
| Clock Sync | False |
| Control Features | Power Good |
| Duty Cycle (Max) [Max] | 100 % |
| Frequency - Switching [Max] | 3 MHz |
| Frequency - Switching [Min] | 100 kHz |
| Function | Step-Down |
| Grade | Automotive |
| Mounting Type | Wettable Flank, Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 2 |
| Output Type | Adjustable |
| Package / Case | 28-WFQFN Exposed Pad |
| Qualification | AEC-Q100 |
| Supplier Device Package | 28-QFN (4x5) |
| 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
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 8.84 | |
| 10 | $ 6.10 | |||
| 25 | $ 5.39 | |||
| 100 | $ 4.60 | |||
| 250 | $ 4.21 | |||
| 500 | $ 3.98 | |||
| 1000 | $ 3.78 | |||
| Digi-Reel® | 1 | $ 8.84 | ||
| 10 | $ 6.10 | |||
| 25 | $ 5.39 | |||
| 100 | $ 4.60 | |||
| 250 | $ 4.21 | |||
| 500 | $ 3.98 | |||
| 1000 | $ 3.78 | |||
| Tape & Reel (TR) | 2500 | $ 3.66 | ||
Description
General part information
LTC7805 Series
The LTC7805 is a high performance dual step-down synchronous DC/DC switching regulator controller that drives all N-channel power MOSFET stages. Constant frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. The LTC7805 operates from a wide 4.5V to 40V input supply range. Power loss and supply noise are minimized by operating the two controller output stages out-of-phase.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 LTC7805 features a precision 0.8V reference and power good output indicators. The MODE pin selects among Burst Mode operation, pulse-skipping mode, or continuous inductor current mode at light loads.The LTC7805 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 / Avionics