LTC3636/LTC3636-1 BLOCK DIAGRAM CIN RUN VIN 1.22V VON SW AV = 1 + – 450k RUN VIN INTVCC 0.6V (LTC3636) 5V (LTC3636) 1.8V (LTC3636-1) 12V (LTC3636-1) 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 + GND + – – R2 COMP SELECT SENSE– SENSE+ 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 3.3V VIN1 REG C PHASE VCC TMON 180°C TJ 1V/200k OSC2 CHANNEL 2 (SAME AS CHANNEL 1) 3636 BD 3636fb 10 For more information www.linear.com/LTC3636 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
