Datasheet LTC3851A-1 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Synchronous Step-Down Switching Regulator Controller |
| Pages / Page | 30 / 10 — FuncTional DiagraM |
| File Format / Size | PDF / 442 Kb |
| Document Language | English |
FuncTional DiagraM
Model Line for this Datasheet
- LTC3851AEMSE-1#PBF LTC3851AEMSE-1#PBF LTC3851AEMSE-1#TRPBF LTC3851AEMSE-1#TRPBF LTC3851AEUD-1#PBF LTC3851AEUD-1#PBF LTC3851AEUD-1#TRPBF LTC3851AEUD-1#TRPBF LTC3851AHMSE-1#PBF LTC3851AHMSE-1#PBF LTC3851AHMSE-1#TRPBF LTC3851AHMSE-1#TRPBF LTC3851AIMSE-1#PBF LTC3851AIMSE-1#PBF LTC3851AIMSE-1#TRPBF LTC3851AIMSE-1#TRPBF LTC3851AIUD-1#PBF LTC3851AIUD-1#PBF LTC3851AIUD-1#TRPBF LTC3851AIUD-1#TRPBF LTC3851AMPMSE-1#PBF LTC3851AMPMSE-1#PBF LTC3851AMPMSE-1#TRPBF LTC3851AMPMSE-1#TRPBF
Text Version of Document
LTC3851A-1
FuncTional DiagraM
V FREQ/PLLFLTR MODE/PLLIN IN VIN + CIN 100k 0.8V 5V REG MODE/SYNC DETECT PLL-SYNC – + BOOST BURSTEN OSC S TG CB R Q PULSE SKIP M1 SW ON 5k SWITCH + – LOGIC SENSE+ D AND B L1 ANTI- ICMP IREV V SHOOT OUT – + SENSE– THROUGH RUN INTVCC + COUT BG OV M2 CVCC SLOPE COMPENSATION GND PGOOD INTV CC UVLO 1 100k + 0.72V R2 ITHB UV VFB – R1 + VIN SLEEP OV – 0.88V – SS 0.8V + RUN – + REF EA 1µA – + + + – 0.64V 1.22V 2µA 0.4V 3851A1 FD ITH RUN TK/SS RC CSS CC1 3851a1fa 10 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
FuncTional DiagraM
V FREQ/PLLFLTR MODE/PLLIN IN VIN + CIN 100k 0.8V 5V REG MODE/SYNC DETECT PLL-SYNC – + BOOST BURSTEN OSC S TG CB R Q PULSE SKIP M1 SW ON 5k SWITCH + – LOGIC SENSE+ D AND B L1 ANTI- ICMP IREV V SHOOT OUT – + SENSE– THROUGH RUN INTVCC + COUT BG OV M2 CVCC SLOPE COMPENSATION GND PGOOD INTV CC UVLO 1 100k + 0.72V R2 ITHB UV VFB – R1 + VIN SLEEP OV – 0.88V – SS 0.8V + RUN – + REF EA 1µA – + + + – 0.64V 1.22V 2µA 0.4V 3851A1 FD ITH RUN TK/SS RC CSS CC1 3851a1fa 10 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
