BD9756AMWV Datasheet | ROHM

1/4 STRUCTURE PRODUCT SERIES Silicon Monolithic Integrated Circuit 7-Channel Switching Regulator Controller for Digital Camera TYPE BD９７５６AMWV PIN ASSIGNMENT BLOCK DIAGRAM PACKAGE Functions Fig.1 Fig.1 Fig.2 - 1.5V minimum input operating - Supplies power for the internal circuit by using charge-pump circuit which outputs a voltage twice bigger than VBATvoltage. or a equal voltage as VBAT + VIN. - Contains step-up converter(1ch), step-down converter(2ch), cross converter(1ch), configurable for step-up/step-down converter(1ch), with PWM brightness controller for step-up converter(1ch). - Contains 4FETs for the cross converter channe.l - 3channels contain transistor for synchronous rectifying action mode. - 2channels contain FETs for the step-up converter. - All channels contain internal pensation between inputs outputs of error amps. - Contains sequence control circuit for ch1,2 and 4. - Operating frequency 1.2MHz(CH1～4), 600k Hz(CH5～7). - Contains output...