CP34063
1.5A,Step-Up/Down/Inverting Switching Regulators
170
µH
L
8
180
S Q
R
7
R
sc
0.22
V
in
12 V
+
6
100
V
CC
+
-
1
Q2
Q1
2
I
pk
Osc
C
T
3
C
T
1.25 V
Ref
Reg
4
R2
1500
pF
1.0
µH
+
V
out
100
1N5819
Comp.
5
R1
2.2 k
47 k
330
+
V
out
28 V/175 mA
C
O
Optional Filter
Test
Line Regulation
Load Regulation
Output Ripple
Efficiency
Output Ripple With Optional Filter
Conditions
V
in
= 8.0 V to 16 V, I
O
= 175 mA
V
in
= 12 V, I
O
= 75 mA to 175 mA
V
in
= 12 V, I
O
= 175 mA
V
in
= 12 V, I
O
= 175 mA
V
in
= 12 V, I
O
= 175 mA
Results
30 mV =
±0.05%
10 mV =
±0.017%
400 mVpp
87.7%
40 mVpp
Figure 8. Step–Up Converter
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Email: server@ceramate.com.tw
Tel:886-3-3214525
Http: www.ceramate.com.tw
Page 5 of 10
Rev 1.1 Jul.18,2003
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
