CP34063
1.5A,Step-Up/Down/Inverting Switching Regulators
8
1
S
R
Q
Q2
Q1
7
6
2
I
88 µH
L
+
pk
R
sc
0.24
C
T
Osc
V
in
4.5 V to 6.0 V
V
CC
3
4
+
100
1.25 V
Ref
Reg
1500
pF
+
-
1N5819
Comp.
5
1.0 µH
R1
V
out
-12 V/100 mA
V
out
953
1000 µf
100
C
O
R2 8.2 k
+
+
Optional Filter
Results
Test
Conditions
= 4.5 V to 6.0 V, I = 100 mA
Line Regulation
Load Regulation
Output Ripple
V
in
V
in
V
in
V
in
V
in
V
in
3.0 mV = ±0.012%
0.022 V = ±0.09%
500 mVpp
O
= 5.0 V, I = 10 mA to 100 mA
O
= 5.0 V, I = 100 mA
O
Short Circuit Current
Efficiency
= 5.0 V, R = 0.1 Ω
910 mA
L
= 5.0 V, I = 100 mA
62.2%
O
Output Ripple With Optional Filter
= 5.0 V, I = 100 mA
70 mVpp
O
Figure 12. Voltage Inverting Converter
8
7
6
1
2
1
2
V
out
8
7
V
out
V
in
V
in
6
Figure 13. External Current Boost Connections for IC Peak Greater than 1.5 A
13a. External NPN Switch 13b. External PNP Saturated Switch
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:886-3-3214525
Email: server@ceramate.com.tw
Http: www.ceramate.com.tw
Rev 1.1 Jul.18,2003
Page 8 of 10
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
