Datasheet LTC3619 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | 400mA/800mA Synchronous Step-Down DC/DC with Average Input Current Limit |
| Pages / Page | 22 / 8 — FuncTional DiagraM |
| File Format / Size | PDF / 512 Kb |
| Document Language | English |
FuncTional DiagraM
Model Line for this Datasheet
Text Version of Document
LTC3619
FuncTional DiagraM
REGULATOR 1 – 0.654V + V PGOOD1 8 FB1 – BURST CLAMP + 0.546V SLOPE 6 VIN COMP VFB1 10 – ITH EA – + SLEEP – + 0.6V I V COMP SLEEP + BURST S Q RS LATCH SOFT-START R Q + SWITCHING ICOMP LOGIC AND – BLANKING ANTI CIRCUIT SHOOT- THRU 7 SW1 + I SHUTDOWN RCMP – 11 GND RUN1 2 SLEEP2 SLEEP1 + 3 RLIM 0.6V REF OSC TO REGULATOR 2 ONLY – 1V RUN2 9 OSC BURST CLAMP SLOPE 6 VIN COMP – VFB2 1 – ITH EA – SLEEP + – + 0.6V I V COMP SLEEP + BURST S Q RS LATCH SOFT-START R Q + SWITCHING ICOMP LOGIC AND – – BLANKING ANTI 0.654V CIRCUIT SHOOT- + THRU 5 SW2 V PGOOD2 4 FB2 – + 0.546V + IRCMP – SHUTDOWN 11 GND REGULATOR 2 3619 FD 3619fa 8 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Functional Diagram Operation Applications Information Package Description Typical Application Related Parts
FuncTional DiagraM
REGULATOR 1 – 0.654V + V PGOOD1 8 FB1 – BURST CLAMP + 0.546V SLOPE 6 VIN COMP VFB1 10 – ITH EA – + SLEEP – + 0.6V I V COMP SLEEP + BURST S Q RS LATCH SOFT-START R Q + SWITCHING ICOMP LOGIC AND – BLANKING ANTI CIRCUIT SHOOT- THRU 7 SW1 + I SHUTDOWN RCMP – 11 GND RUN1 2 SLEEP2 SLEEP1 + 3 RLIM 0.6V REF OSC TO REGULATOR 2 ONLY – 1V RUN2 9 OSC BURST CLAMP SLOPE 6 VIN COMP – VFB2 1 – ITH EA – SLEEP + – + 0.6V I V COMP SLEEP + BURST S Q RS LATCH SOFT-START R Q + SWITCHING ICOMP LOGIC AND – – BLANKING ANTI 0.654V CIRCUIT SHOOT- + THRU 5 SW2 V PGOOD2 4 FB2 – + 0.546V + IRCMP – SHUTDOWN 11 GND REGULATOR 2 3619 FD 3619fa 8 Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Functional Diagram Operation Applications Information Package Description Typical Application Related Parts
