Rv5vh3 – Ricoh RV5VH User Manual
Page 40
RV5VH3
××
36
DC/DC Converter 2
Symbol
Item
Conditions
MIN.
TYP.
MAX.
Unit
V
SET2
Output Voltage Setting 1
*
1
0
V
V
FB2
Feed Back Volatage 1
–20
0
20
mV
V
IN
max
Maximum Input Voltage
10
V
V
OPT
min
Minimum Operating Voltage
Specified as the V
DD
1.8
V
Voltage for Device Operation
I
SS21
Supply Current21*
2
CSW=“H”, FB2=0.1V
15
60
µA
I
SS22
Supply Current22*
2
CSW=“H”, FB2=–0.1V
4
µA
I
EXT2H
EXT2 “H” Output Current
V
EXT2
=V
DD
–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
ON (V
EXT2
=“L”)
40
50
60
%
∆
V
FB2
Feed Back Voltage Temp.Co.
–40˚C
≤
Topt
≤
85˚C
±30
µV/˚C
∆
Topt
*
) V
DD
=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.
V
DD
=3.0V, Topt=25˚C