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Overview
| Topology | Buck Converter |
| Input voltage | 4-58 V |
| Switching frequency | 320-2250 kHz |
| Output 1 | 3.3 V / 15 A |
Description
The LTC®7800 is a high performance step-down switchingregulator DC/DC controller that drives an all N-channelsynchronous power MOSFET stage. A constant frequencycurrent mode architecture allows a phase-lockablefrequency of up to 2.25MHz.
Features
Wide VIN Range: 4V to 60V (65V Abs Max)n Low Operating IQ: 50μAn Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 24Vn RSENSE or DCR Current Sensingn Phase-Lockable Frequency (320kHz to 2.25MHz)n Programmable Fixed Frequency (320kHz to2.25MHz)n Selectable Continuous, Pulse-Skipping or Low RippleBurst Mode® Operation at Light Loadn Selectable Current Limitn Very Low Dropout Operation: 98% Duty Cyclen Adjustable Output Voltage Soft-Start or Trackingn Power Good Output Voltage Monitorn Output Overvoltage Protectionn Low Shutdown IQ: < 14μAn Internal LDO Powers Gate Drive from VIN or EXTVCCn No Current Foldback During Start-Upn Small 20-Pin 3mm × 4mm QFN Package
Typical applications
- Battery Powered Digital Devices,Distributed DC Power Systems
- Automotive Always-On Systems
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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7443551130 | 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 | 1.3 | 32.1 | 11 | 25 | 1.8 | 59 | WE-PERM |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7443551130 | 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 |
|---|