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LT3688_15 Datasheet, PDF (12/28 Pages) Linear Technology – Dual 800mA Step-Down Switching Regulator with Power-On Reset and Watchdog Timer
LT3688
TIMING DIAGRAMS
VOUT1
VUV
RST1
VOUT2
VUV
RST2
WDO
tRST1
tRST2
tWDU
WDI
STARTUP TIMING (VCONFIG = HIGH)
VOUT1
VOUT2
RST1
VUV
VUV
tRST1
RST2
WDO
tWDU
WDI
VOUT1
VUV
RST1
VOUT2
RST2
VUV
tRST2
WDO
STARTUP TIMING (VCONFIG = LOW)
tRST1
tWDU
WDI
STARTUP TIMING (VCONFIG = OPEN)
tRST1 = PROGRAMMED RESET PERIOD (CPOR1)
tRST2 = PROGRAMMED RESET PERIOD (CPOR2)
tWDU = WATCHDOG WINDOW UPPER BOUNDRY
VUV = RESET THRESHOLD
3688 TD
12
3688f