RV5VH Datasheet, PDF (25/47 Pages) RICOH electronics devices division – DC/DC CONVERTER CONTROLLER

RV5VH1××/RV5VH2××
TEST CIRCUITS
22µF
V A L1
CSW
VSEN
VOUT1
LX1
DOUT
FB
EXT2
GND
Fig.1 Test Circuit 1
L1=100µH,220µH
5Ω
(150Ω)*
V
CSW
VSEN
VOUT1
LX1(EXT1)
DOUT
FB
EXT2
GND
Oscilloscope
Fig.2 Test Circuit 2
100kΩ
A
150Ω
V
* ^EXT1
CSW
VSEN
VOUT1
LX1
DOUT
FB
EXT2
GND
A
0.5V
Fig.3 Test Circuit 3
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