Path: OKDatasheet > Semiconductor Datasheet > Ricoh Datasheet > R1221N44XF-TR
R1221N44XF-TR manual: 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 500kHz