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| Regulator ICs Two-channel switching regulator controller BA9741F / BA9741FS The BA9741F and BA9741FS are two-channel switching regulator controllers that use the PWM method. Both circuits can be used for DC to DC conversion for step-up, step-down, and inverting. The IC comes in a compact package, making it ideal for use in portable equipment. FApplications DC / DC converters for video cameras and notebook computers etc. FFeatures 1) High-accuracy reference voltage circuit (1%). 2) Timer-latch, short-circuit protection circuit 3) Miss-operation prevention circuit for low-voltage input. FAbsolute maximum ratings (Ta = 25_C) 4) Reference voltage with output (2.5V). 5) Rest period adjustment is possible over the entire duty range. FRecommended operating conditions (Ta = 25_C) 427 Regulator ICs FBlock diagram BA9741F / BA9741FS FPin descriptions 428 Regulator ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, and VCC = 6V) BA9741F / BA9741FS 429 Regulator ICs BA9741F / BA9741FS FTiming chart FElectrical characteristic curves 430 Regulator ICs BA9741F / BA9741FS FExternal dimensions (Units: mm) 431 |
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