Datasheet LTC3633A, LTC3633A-1 (Analog Devices) - 10

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