9
dc2123bfa
DEMO MANUAL DC2123B
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
SW2
BG2
ISP
FB
PWMOUT
SNSP
BG1
SW1
TG1
TG2
*C/10
INTVCC
PWM
*SHORT
VREF
SS
VIN
IVINN
IVINN
PVIN
PVIN
PVIN
VREF
VREF
R32 (Opt) 0603
E22
INTVCC
R29
(Opt)
0603
E24
GND
+
C23 47µF 80V (Opt)
10mm Dia. Surface Mount
R30
(Opt)
0603
M10
SOT-23
(Opt)
L3
4.7µH
7443551470
Wurth
Electronik
(Opt)
R24
(Opt)
0603
C24 4.7µF 100V 1210 (Opt)
D5
(Opt)
SOD-123
M
9
SOT-23
(Opt)
M
7
(Opt) PG-TDSON-8
L2
4.7µH
7443551470
Wurth
Electronik
(Opt)
E21
PWM
M
6
(Opt) PG-TDSON-8
C22 (Opt)
M11
SOT-23
(Opt)
D6
(Opt)
SOD-123
C25 4.7µF 100V 1210 (Opt)
C27 4.7µF 100V 1210 (Opt)
E23
LED-
(Opt)
R28 (Opt) 0603
R31 (Opt) 0603
M12 (Opt) LFPAK
R23
(Opt)
0603
D7
SOD-523
(Opt)
M
5
(Opt)
PG-TDSON-8
R25 (Opt)
R27 (Opt) 0603
R26 (Opt) 0603
C28 (Opt)
C26 4.7µF 100V 1210 (Opt)
M
8
(Opt)
PG-TDSON-8
ISP
SW1
SW2
*C/10
TG1
BG1
TG2
BG2
SW1
SW2
SNSP
SNSP
PWMOUT
ISP
INTVCC
PWM
*SHORT
SS
FB
ISP
