Ricoh RV5VH - Manual (Page 11)

7
RV5VH1
××
/RV5VH2
××
DC/DC Converter 2
Symbol Item Conditions MIN. TYP. MAX. Unit
V SET Set Output Voltage * 1 0 V
V FB Feed Back Voltage –20 0 20 mV
V IN Maximum Input Voltage 10 V
V OPT min Minimum Operating Voltage I OUT =1mA 1.8 V
I SS2 Supply Current2 CSW= “H” at No Load 10 µA
Istandby Standby Current CSW=“L” 0.3 µA
I EXT2H EXT2 “H” Output Current V EXT2 =V OUT1 –0.4V 2 4 mA
I EXT2L EXT2 “L” Output Current V EXT2 =0.4V 4 8 mA
fosc Maximum Oscillator Frequency 110 130 150 kHz
Maxdty Oscillator Duty Cycle V EXT2 =“H” 40 50 60 %
V CSWH CSW “H” Input Voltage V OUT1 =3.0V 1.6 V OUT1 V
V CSWL CSW “L” Input Voltage V OUT1 =3.0V 0 0.4 V
I CSWleak CSW Input Leakage Current V OUT1 =3.0V –0.5 0.5 µA
∆
V FB
Feed Back Voltage Co.Temp. –40˚C
≤
Topt
≤
85˚C ±30 µV/˚C
∆
Topt
* ) V OUT1 =3.0V, I OUT =1mA, Topt=25˚C, unless otherwise specified. (See Typical Application)
* 1 ) Adjustable by external resistors to -30V.
V OUT1 =3.0V, Topt=25˚C