Path: OKDatasheet > Semiconductor Datasheet > Ricoh Datasheet > RS5RJXXXXB-T1
RS5RJXXXXB-T1 manual: PWM step-up DC/DC converter with voltage regulator and detector. 1 and 2 XX Vout, step 0.1V, range 1.5V to 6.0V. 3 and 4 XX Vdet, step 0.1V, range 1.2V to 5.0V. Operating of only step-up DC/DC converter is setting chip enable pin at Vdd level.