R1212D Datasheet | Nisshinbo

R1212D Series PWM Step-up DC/DC Controller NO.EA-109-220608 OUTLINE The R1212D is a CMOS-based PWM step-up DC/DC controller with low supply current. Internally, the R1212D consists of an oscillator, a PWM parator circuit, a reference voltage unit, an error amplifier, a reference current unit, a protection circuit, and an under voltage lockout (UVLO) circuit. A low ripple, high efficiency stepup DC/DC converter can be posed of this IC with some external ponents, or an inductor, a diode, a power MOSFET, divider resistors, and capacitors. The maximum duty cycle and the soft start time are easily adjustable with external resistors and capacitors. In terms of maximum duty cycle,...