RV5VH Datasheet, PDF (16/47 Pages) RICOH electronics devices division – DC/DC CONVERTER CONTROLLER

RV5VH1××/RV5VH2××
• RV5VH202
DC/DC Converter 1
Symbol
Item
VOUT1 Step-up Output Voltage
VINmax Maximum Input Voltage
Vstart Oscillator Start-up Voltage
Vhold Hold-on Input Voltage
ISS1
Supply Current1 *¹
IEXT1H EXT1 “H” Output Current
IEXT1L EXT1 “L” Output Current
fosc Maximum Oscillator Frequency
Maxdty Oscillator Duty Cycle
η
Efficiency
∆VOUT1
∆Topt
Output Voltage Temp. Coefficient
Conditions
IOUT=0mA
No Load
IOUT=1mA
IOUT=0mA, CSW=“L”
VEXT2=VOUT1–0.4V
VEXT2=0.4V
ON (VLX=“L”)
–40˚C≤Topt≤85˚C
MIN.
4.875
0.7
2
7
110
55
VOUT1=5.0V, Topt=25˚C
TYP. MAX. Unit
5.000 5.125 V
10
V
0.7
0.8
V
V
40
µA
4
mA
14
mA
130 150 kHz
70
85
%
80
%
±100
ppm/˚C
* ^{) VIN=3.0V, IOUT=10mA : unless otherwise specified. (See Typical Application)}
*^{1 ) This value only shows the supply current of DC/DC1, does not include the supply current of Voltage Detector and external resistors.}
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