AN30210A

e e DC-DC Converter Controller for Digital Still Camera / AN30210A h S a ! Overview at .D w w w Pursuing low power consumption and high efficiency by New Generation CMOS process The AN30210A is a DC-DC converter control IC that features lowvoltage operation and has a 5 V output channel applicable for self bias and six output channels as PWM DC-DC converter control. This IC is composed of three step-up outputs, one step-down output, one inverted output and two outputs for a transformer drive. Minimal operating supply voltage of this IC is as low as 1.5 V,so that it can operate with 2 dry-batteries. A high precision reference voltage of ±1% tolerance is obtained by using synchronized operation for all channels and synchronized rectification on the output circuit of step-down voltage. Direct MOSFET drive is available. 8.20 0.08 (8.00) 4-C0.50 48 33 49 32 64 1 1 16 (0.65) (1.10) U 4 t m o .c Prototype Unit: mm 0.60 (1.10) 0.10 64 ! Feature NO RESIN AREA 33 48 " Operating supply voltage range : 1.5 V to 7.2 V 0.40 0.16 " High-precision reference voltage circuit 0.08 　　--- Vref : ±1% HQFN-64PIN " PWM control and synchronized operation for all channels " Synchronized rectification on the output circuit of step-down voltage " On/off (sequence control) pins for all channels or each channel for easy sequence control setup " Independent soft start-up pin for each cannel " Timer latch short-circuit protection circuit for each channel " Setting of a dead time with an external resi...