Datasheet LTC3737 (Analog Devices) - 7

LTC3737
U U W FU CTIO AL DIAGRA
M1 L1 VIN VOUT1 D1 CIN COUT VIN SENSE1+ IPROG1 PVIN1 SW1 SLOPE1 VOLTAGE VREF SWITCHING CLK1 S REFERENCE 0.6V PGATE1 LOGIC AND – Q BLANKING ICMP R PGND CIRCUIT + UNDERVOLTAGE UV + LOCKOUT UVSD VIN OV1 OVP CMSD + – 0.68V SLEEP1 VIN 0.15V – + 0.3V R1B R 0.7µA SC1 TRACKB BURSTDIS VFB RUN/SS SCP EXTSS – 0.12V CSS + I t = 1ms TH1 INTERNAL – SOFT-START – R + MUX SOFT- C INTSS + 0.54V START + CC PGOOD1 OV1 – BURST DEFEAT BURSTDIS SYNC/MODE DUPLICATE FOR SECOND CHANNEL PHASE CLOCK DETECT DETECTOR VFB1 – PLLLPF I R1A TH1 EAMP1 + VREF = 0.6V – VOLTAGE SLOPE1 + SOFT-START SLOPE VREF = 0.6V + EAMP2 ITH2 CONTROLLED CLK1 COMP OSCILLATOR SLOPE2 V TRACK + FB2 CLK2 VIN R2B R2A V PGOOD1 OUT2 R PGOOD TRACKA PGOOD2 3737 BD UVSD SGND 3737fa 7