LTC7813HUH#TRPBF
ActiveDC/DC CNTRLR DUAL-OUT STEP DOWN/STEP UP 850KHZ 32-PIN QFN EP T/R
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LTC7813HUH#TRPBF
ActiveDC/DC CNTRLR DUAL-OUT STEP DOWN/STEP UP 850KHZ 32-PIN QFN EP T/R
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Technical Specifications
Parameters and characteristics for this part
| Specification | LTC7813HUH#TRPBF |
|---|---|
| Clock Sync | False |
| Control Features | Soft Start, Power Good, Frequency Control, Enable, Tracking |
| Duty Cycle (Max) | 96 %, 99 % |
| Frequency - Switching [Max] | 535 kHz, 835 kHz |
| Frequency - Switching [Min] | 350 kHz, 105 kHz |
| Function | Step-Down, Step-Up |
| Mounting Type | Surface Mount |
| Number of Outputs | 2 |
| Operating Temperature [Max] | 150 °C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Phases | 1 |
| Output Type | Transistor Driver |
| Supplier Device Package | 32-QFN (5x5) |
| Synchronous Rectifier | True |
| Topology | Boost, Buck |
| Voltage - Supply (Vcc/Vdd) [Max] | 60 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 | Tape & Reel (TR) | 2500 | $ 8.65 | |
Description
General part information
LTC7813 Series
The LTC7813 is a high performance synchronous Boost+Buck DC/DC switching regulator controller that drives all N-channel power MOSFET stages. It contains independent step-up (boost) and step-down (buck) controllers that can regulate two separate outputs or be cascaded to regulate an output voltage from an input voltage that can be above, below, or equal to the output voltage. The LTC7813 operates from a wide 4.5V to 60V input supply range. When biased from the output of the boost regulator, the LTC7813 can operate from an input supply as low as 2.2V after start-up. The 34μA no-load quiescent current (both channels on) extends operating runtime in battery-powered systems.Unlike conventional buck-boost regulators, the LTC7813’s cascaded Boost+Buck solution has continuous, nonpulsating, input and output currents, substantially reducing voltage ripple and EMI. The LTC7813 has independent feedback and compensation points for the boost and buck regulation loops, enabling a fast output transient response that can be externally optimized.ApplicationsAutomotive and Industrial Power SystemsHigh Power Battery Operated Systems
Documents
Technical documentation and resources