Datasheet LTC3772B (Analog Devices) - 7

LTC3772B
U U W FU CTIO AL DIAGRA
SW VIN UNDERVOLTAGE UV SLOPE VOLTAGE 0.8V COMPENSATION LOCKOUT REFERENCE + – IPRG 1.2µA SHUTDOWN CURRENT I COMPARATOR TH/RUN – COMPARATOR + ILIM ITH + SHDN BUFFER – R S 550kHz RS OSCILLATOR LATCH Q VIN FREQUENCY SWITCHING FOLDBACK LOGIC AND PGATE BLANKING CIRCUIT 0V OVERVOLTAGE SHORT-CIRCUIT COMPARATOR DETECT ERROR – + + – AMPLIFIER – 0.88V 0.3V VFB + 0.8V + SOFT-START 1.2V RAMP GND 3772B FD 3772bfa 7