Datasheet LTC3633A, LTC3633A-1 (Analog Devices) - 10
| Manufacturer | Analog Devices |
| Description | Dual Channel 3A, 20V Monolithic Synchronous Step-Down Regulator |
| Pages / Page | 30 / 10 — BLOCK DIAGRAM |
| File Format / Size | PDF / 417 Kb |
| Document Language | English |
BLOCK DIAGRAM
Model Line for this Datasheet
Text Version of Document
LTC3633A/LTC3633A-1
BLOCK DIAGRAM
CIN VON RUN VIN 1.22V 140k AV = 1 + – RUN INTV VIN 0.6V (LTC3633A) 6V (LTC3633A) CC 1.5V (LTC3633A-1) 12V (LTC3633A-1) RUN I I ON ON V OSC1 t VON CONTROLLER ON = R IION ON S Q BOOST SWITCH LOGIC TG AND M1 CBOOST ANTI- SW SHOOT L1 THROUGH COUT BG M2 ICMP IREV + PGND + – – COMP SELECT SENSE– SENSE+ R2 ITH FB RC IDEAL DIODES R1 CC1 0.6V – REF EA – 0.648V + 0V INTERNAL PGOOD SOFT-START + INTVCC 1.4µA – TRACK – TRACKSS FC BURST UV SS MODE SELECT C + SS 0.552V + 0.48V AT START-UP CHANNEL 1 0.10V AFTER START-UP OSC1 RT OSC MODE/SYNC OSC PLL-SYNC R INTVCC RT V 3.3V IN1 REG PHMODE C PHASE VCC SELECT V2P5 2.5V OSC2 REG SGND CHANNEL 2 (SAME AS CHANNEL 1) 3633a BD 3633a1fb 10 For more information www.linear.com/LTC3633A Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Typical Application Related Parts
BLOCK DIAGRAM
CIN VON RUN VIN 1.22V 140k AV = 1 + – RUN INTV VIN 0.6V (LTC3633A) 6V (LTC3633A) CC 1.5V (LTC3633A-1) 12V (LTC3633A-1) RUN I I ON ON V OSC1 t VON CONTROLLER ON = R IION ON S Q BOOST SWITCH LOGIC TG AND M1 CBOOST ANTI- SW SHOOT L1 THROUGH COUT BG M2 ICMP IREV + PGND + – – COMP SELECT SENSE– SENSE+ R2 ITH FB RC IDEAL DIODES R1 CC1 0.6V – REF EA – 0.648V + 0V INTERNAL PGOOD SOFT-START + INTVCC 1.4µA – TRACK – TRACKSS FC BURST UV SS MODE SELECT C + SS 0.552V + 0.48V AT START-UP CHANNEL 1 0.10V AFTER START-UP OSC1 RT OSC MODE/SYNC OSC PLL-SYNC R INTVCC RT V 3.3V IN1 REG PHMODE C PHASE VCC SELECT V2P5 2.5V OSC2 REG SGND CHANNEL 2 (SAME AS CHANNEL 1) 3633a BD 3633a1fb 10 For more information www.linear.com/LTC3633A Document Outline Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Operation Applications Information Package Description Typical Application Related Parts
