Topology | Buck Converter |
Input voltage | 12 V |
Switching frequency | 50-900 kHz |
Output 1 | 12 V / 5 A |
The LTC®7801 is a high performance step-down switchingregulator DC/DC controller that drives an all N-channelsynchronous power MOSFET stage that can operate frominput voltages up to 140V. A constant frequency currentmode architecture allows a phase-lockable frequency ofup to 850kHz.
Wide VIN Range: 4V to 140V (150V Abs Max)nn Wide Output Voltage Range: 0.8V to 60Vnn Adjustable Gate Drive Level: 5V to 10V (OPTI-DRIVE)nn Low Operating IQ: 40μA (Shutdown = 10μA)nn 100% Duty Cycle Operationnn No External Bootstrap Diode Requirednn Selectable Gate Drive UVLO Thresholdsnn Onboard LDO or External NMOS LDO for DRVCCnn EXTVCC LDO Powers Drivers from VOUTnn Phase-Lockable Frequency (75kHz to 850kHz)nn Programmable Fixed Frequency (50kHz to 900kHz)nn Selectable Continuous, Pulse-Skipping or Low RippleBurst Mode® Operation at Light Loadsnn Adjustable Burst Clampnn Power Good Output Voltage Monitornn Programmable Input Overvoltage Lockoutnn Small 24-Lead 4mm × 5mm QFN or TSSOP Packages
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples | |
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![]() | 74435571500 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 15 | 14.1 | 10.75 | 14 | 9 | 14 | MnZn |
Order Code | Datasheet | Simulation | |
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![]() | 74435571500 | SPEC |
Samples |
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Order Code | Datasheet | Simulation | Downloads | Status | Product series | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples |
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