XC9303 Series
"
TEST CIRCUITS
High Efficiency, Synchronous
Step-Up & Down DC / DC Controller ICs
Circuit 1
PNP
Tr1
Tr2:Nch MOSFET
SBD
C
IN
Tr3 :NchMOSFET
A
EXT1
V DD
C
IN
PWM
CE
V
IN
EXT2
GND
FB
NC
C
L
RFB2
CFB
R
L
RFB1
V
L
SBD
V
OUT
Circuit 2
EXT1
A
V DD
PWM
A
OSC
1
µ
F
V
DD
V
P WM
V
CE
A
A
CE
EXT2
GND
FB
NC
A
OSC
2200pF
Circuit 3
L
Tr1:Pch MOSFET
Tr2:Nch MOSFET
SBD
C
IN
Tr3:NchMOSFET
A
EXT1
VDD
C
IN
PWM
CE
V
IN
EXT2
V
GND
FB
NC
C
L
R
L
A
SBD
V
OUT
Circuit 5
EXT1
VDD
Rp
OS C
510Ω
V
EX T1
1µ F
D
V
FB
Circuit 4
Tr1:Pch MOSFET
Tr2:Nch MOSFET
SBD
C
IN
Tr3:NchMOSFET
A
EXT1
VDD
C
IN
OSC
V
IN
V
P WM
V
CE
PWM
CE
EXT2
GND
FB
NC
75kΩ
62 p
F
V
C
L
R
L
200k
Ω
A
L
SBD
V
OUT
EXT2
GND
FB
NC
V
E X T2
V
FB
OSC
Rp
PWM
CE
V
D
V
CE
V
P WM
Circuit 1 :
L:
SD:
CL:
CIN:
Tr 2 :
Tr 3 :
RFB :
22µH (SUMIDA CDRH127 / LD)
CMS02 (TOSHIBA, Schottky Barriar Diode)
16MCE476MD2 (NIHONCHEMICON, Tantalum Type)
16MCE476MD2 (NIHONCHEMICON, Tantalum Type)
CPH3409 (SANYO)
CPH3409 (SANYO)
Please use by the conditions as below.
RFB1 + RFB2
≤1MΩ
RFB1 / RFB2 = (Setting Output Voltage / 0.9) -1
CFB :
fztb = 1 / (2 x
π
x CFB x RFB1) =1kHz ~ 50kHz (12kHz usual)
PNP Tr 1 : 2SA1213 (TOSHIBA)
Circuit 3 :
L:
SD:
CL:
CIN:
Tr 1 :
Tr 2 :
Tr 3 :
22µH (SUMIDA CDRH127 / LD)
CMS02 (TOSHIBA, Schottky Barriar Diode)
16MCE476MD2 (NIHONCHEMICON, Tantalum Type)
16MCE476MD2 (NIHONCHEMICON, Tantalum Type)
CPH6315 (SANYO)
CPH3409 (SANYO)
CPH3409 (SANYO)
Circuit 4 :
L:
SD:
CL:
CIN:
Tr 1 :
Tr 2 :
Tr 3 :
22µH (SUMIDA CDRH127 / LD)
CMS02 (TOSHIBA, Schottky Barriar Diode)
16MCE476MD2 (NIHONCHEMICON, Tantalum Type)
16MCE476MD2 (NIHONCHEMICON, Tantalum Type)
CPH6315 (SANYO)
CPH3409 (SANYO)
CPH3409 (SANYO)
7
Semiconductor Ltd.
TOREX [ TOREX SEMICONDUCTOR ]
