Ricoh R1213K Manuals

R1213K Series are CMOS-based, PWM control low consumption current step-up DC/DC converter ICs.

The R1213K Series are low supply current, CMOS-based PWM step-up DC/DC converters. R1213K includes a soft start circuit, an under-voltage lockout circuit (UVLO), a thermal shutdown circuit, and a latch protection circuit. By simply using an inductor, resisters and capacitors as external components, a high-efficiency step-up DC/DC converter can be easily configured. The soft start time as well as phase compensation can be set with external resistors and capacitors. Built-in a timer latch protection circuit. Built-in a shutdown control circuit. It turns off the external Pch MOSFET at the latch protection time, so it cut off the power line from VDD to VOUT. To release the latch protection, change to the stand-by mode by the CE pin, or change the VDD voltage lower than the UVLO detect voltage.