LTC4380 BLOCK DIAGRAM M1 RSNS INPUT OUTPUT VCC GATE 17V SNS OUT 13.5V CHARGE PUMP REGULATED TO VOUT + 11.5V 20µA f = 250kHz 31.5V* + – + 50mV/62mV RDRN SEL IA 18.5V* – 3.5V 1M ON + SNS ON – 1.05V DRN CONTROL MULTIPLIER LOGIC – V I CC MULT OUT UV + – V V MAX RST GOFF 2.2V CC 3.4V 7µA, 27µA + VCC OVERCURRENT VCC 4µA 3.5µA 0.1V + COOL DOWN OVERVOLTAGE – FLT 2µA + 1.215V – TMR GND 4380 BD *ONLY IN LTC4380-1/LTC4380-2 Rev. C 10 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts