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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-38 V |
| Switching frequency | 100-3000 kHz |
| Output 1 | 5 V / 10 A |
Description
The LTC®7803 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.
Features
- Low Operating IQ: 12μA (14V VIN to 3.3V VOUT)
- Wide Input Voltage Range: 4.5V to 40V
- Output Voltage Up to 40V
- Spread Spectrum Operation
- RSENSE or DCR Current Sensing
- PassThru™/100% Duty Cycle Capable
- Programmable Fixed Frequency (100kHz to 3MHz)
- Phase-Lockable Frequency (100kHz to 3MHz)
- Selectable Continuous, Pulse-Skipping, or Low Ripple Burst ModeR Operation at Light Loads
- Low Shutdown IQ: 1.2μA
- Thermally Enhanced 16-Pin 3mm × 3mm QFN and MSOP Packages
- AEC-Q100 Qualification in Progress
Typical applications
- Telecommunications
- Automotive and Transportation
- Industrial
- Military/Avionics
More information
Products
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 744313180 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | 1.8 | 19.5 | 8 | 22 | 5.6 | 48 | Superflux |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 744313180 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| Samples |
|---|
| 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 |
|---|