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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 | 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 |
| 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 |
|---|
