Cale:OKDatasheet > Semiconductor Date > Ricoh Datasheet > R1221N44XC-TR
R1221N44XC-TR spec.: Step-down DC/DC converter with voltage detector. Output voltage (Vout) 4.4V. Detector threshold (-Vdet). Stepwise setting with a step of 0.1V in the range of 1.2V to 4.5V. Oscillator frequency 300kHz