LT1737 W UWTI I G DIAGRA VSW VOLTAGE COLLAPSE DETECT VFLBK 0.80× VFLBK VIN GND SWITCH OFF ON OFF ON STATE MINIMUM tON ENABLE DELAY FLYBACK AMP DISABLED ENABLED DISABLED STATE MINIMUM ENABLE TIME 1737 TD WFLYBACK ERROR A PLIFIER T1 • D1 + • + ISOLATED C1 VOUT V – IN • M1 IM IFXD VC R1 FB ENAB Q1 Q2 V C2 BG R2 I IM 1737 EA 1737fa 8