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LT1074/LT1076 Step-Down Switching - Analog Devices
A switch cycle in the LT1074 is initiated by the oscillator setting the R/S latch. The pulse that sets the latch also locks out the switch via gate G1. The effective width of this pulse is approximately 700ns, which sets the maximum switch duty cycle to approximately 93% at 100kHz switch-ing frequency. The switch is turned off by comparator C1,
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