Datasheet LTC7800 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Low IQ , 60V, High Frequency Synchronous Step-Down Controller |
| Pages / Page | 32 / 10 — FUNCTIONAL DIAGRAM |
| File Format / Size | PDF / 1.3 Mb |
| Document Language | English |
FUNCTIONAL DIAGRAM
Model Line for this Datasheet
Text Version of Document
LTC7800
FUNCTIONAL DIAGRAM
INTVCC VIN + D PGOOD 0.88V BOOST B – VFB CB + DROP TG TOP OUT C – IN 0.72V DET D BOT SW TOP ON S Q INTV R Q CC SWITCH SHDN BG LOGIC BOT 20µA FREQ COUT PGND VCO CLK2 VOUT CLK1 + R 0.425V SENSE SLEEP L – ICMP IR – PFD + + – – + + – 2mV SENSE+ SYNC 2.7V PLLIN/MODE DET 0.65V SENSE– 100k SLOPE COMP ILIM VFB CURRENT – RB LIMIT + EA + 0.80V VIN TRACK/SS RA + EXTV OV CC – 0.88V CC ITH 5.1V 5.1V 7µA SHDN CC2 RC LDO LDO 10µA RST FOLDBACK TRACK/SS EN EN 2(VFB) + 11V – SHDN CSS 4.7V 7800 FD SGND INTV RUN CC 7800f 10 For more information www.linear.com/LTC7800 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions FUNCTIONAL Diagram Operation Applications Information Typical Application Related Parts
FUNCTIONAL DIAGRAM
INTVCC VIN + D PGOOD 0.88V BOOST B – VFB CB + DROP TG TOP OUT C – IN 0.72V DET D BOT SW TOP ON S Q INTV R Q CC SWITCH SHDN BG LOGIC BOT 20µA FREQ COUT PGND VCO CLK2 VOUT CLK1 + R 0.425V SENSE SLEEP L – ICMP IR – PFD + + – – + + – 2mV SENSE+ SYNC 2.7V PLLIN/MODE DET 0.65V SENSE– 100k SLOPE COMP ILIM VFB CURRENT – RB LIMIT + EA + 0.80V VIN TRACK/SS RA + EXTV OV CC – 0.88V CC ITH 5.1V 5.1V 7µA SHDN CC2 RC LDO LDO 10µA RST FOLDBACK TRACK/SS EN EN 2(VFB) + 11V – SHDN CSS 4.7V 7800 FD SGND INTV RUN CC 7800f 10 For more information www.linear.com/LTC7800 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions FUNCTIONAL Diagram Operation Applications Information Typical Application Related Parts
