Datasheet LTC3772 (Analog Devices) - 7

LTC3772
U U W FU CTIO AL DIAGRA
SW VIN UNDERVOLTAGE UV SLOPE VOLTAGE BURST 0.8V COMPENSATION LOCKOUT REFERENCE CLAMP + – IPRG 1µA SHUTDOWN CURRENT I COMPARATOR TH/RUN – COMPARATOR 75mV + ILIM ITH + SHDN BUFFER – R S 550kHz RS OSCILLATOR LATCH Q VIN FREQUENCY SLEEP SWITCHING FOLDBACK – COMPARATOR LOGIC AND PGATE SLEEP BLANKING CIRCUIT + 0V OVERVOLTAGE SHORT-CIRCUIT 0.15V COMPARATOR DETECT ERROR – + + – AMPLIFIER 0.225V – 0.88V 0.3V VFB + 0.8V SOFT-START 1.2V RAMP GND 3772 FD 3772f 7