RX5RZ Datasheet, PDF (15/25 Pages) RICOH electronics devices division – LOW DROPOUT AND LOW NOISE VOLTAGE REGULATOR

• Output Delay Operation
RN5VD
Supply Voltage
(VDD)
Released Voltage (+VDET)
CD pin Voltage
CD pin Threshold Voltage (VTCD)
GND
Output Voltage
(OUT)
GND
Output Delay Time (tD)
When the supply voltage crosses the released voltage (+VDET) from a low value to a value higher than
the released voltage (+VDET) , the CD pin voltage starts to increase (starts to charge the external capaci-
tor).
The output voltage is maintained at “L” level until the CD pin voltage reaches to VTCD (CD pin threshold
voltage) after that the output voltage is reversed to “H”.
The time period from beginning of charging capacitor to output voltage reversing represents the out-
put delay (tD) .
• Output Delay Time
Delay time (tD) can be set accordance with the capacitance CD of external capacitor as below
tD=0.69×10⁶×CD (s)
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