RV5VH Datasheet, PDF (37/47 Pages) RICOH electronics devices division – DC/DC CONVERTER CONTROLLER

RV5VH3××
DC/DC Converter 2
Symbol
Item
VSET2 Output Voltage Setting 1
VFB2 Feed Back Volatage 1
VINmax Maximum Input Voltage
VOPTmin Minimum Operating Voltage
ISS21
ISS22
IEXT2H
IEXT2L
fosc
Maxdty
∆VFB2
∆Topt
Supply Current21*²
Supply Current22*²
EXT2 “H” Output Current
EXT2 “L” Output Current
Maximum Oscillator Frequency
Oscillator Duty Cycle
Feed Back Voltage Temp.Coefficient
Conditions
Specified as the VDD
Voltage for Device Operation
CSW=“H”, FB2=0.1V
CSW=“H”, FB2=–0.1V
VEXT2=VDD–0.4V
VEXT2=0.4V
ON (VEXT2=“L”)
–40˚C≤Topt≤85˚C
MIN.
*¹
–20
VDD=3.0V, Topt=25˚C
TYP. MAX. Unit
0
V
0
20
mV
10
V
1.8
V
15
60
µA
4
µA
2
4
mA
4
8
mA
110 130 150 kHz
40
50
60
%
±30
µV/˚C
* ^{) VDD=3.0V : unless otherwise specified. (See Typical Application)}
*^{1 ) Adjustable by external resistors (to -30V).}
*^{2 ) This value shows only the supply current of DC/DC2, not include the supply current of external resistors.}
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