ncv33063a ON Semiconductor, ncv33063a Datasheet - Page 7

• Manufacturer Part Number: ncv33063a
• Description: 1.5 A, Stepup/down/ Inverting Switching Regulators
• Manufacturer: ON Semiconductor

R
V
sc
in
8
7
6
11a. External NPN Switch
25 V
V
in
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple With Optional Filter
0.33
100
R
R1 1.2 k
sc
Figure 11. External Current Boost Connections for I
+
8
7
6
5
V
CC
Test
+
−
3.6 k
MC34063A, MC33063A, NCV33063A
R2
I
1
2
pk
Comp.
OSC
S Q
R
Figure 10. Step−Down Converter
C
T
1.25 V
Reg
Ref
Q2
http://onsemi.com
V
V
V
V
V
V
in
in
in
in
in
in
V
out
Q1
= 15 V to 25 V, I
= 25 V, I
= 25 V, I
= 25 V, R
= 25 V, I
= 25 V, I
7
1
2
3
4
1N5819
C
O
O
O
O
L
R
T
Conditions
V
= 50 mA to 500 mA
= 500 mA
= 500 mA
= 500 mA
470
sc
= 0.1 W
in
pF
470
L
O
+
8
7
6
= 500 mA
C
220 mH
O
11b. External PNP Saturated Switch
C
5.0 V/500 mA
Peak Greater than 1.5 A
V
out
12 mV = ±0.12%
3.0 mV = ±0.03%
120 mVpp
1.1 A
83.7%
40 mVpp
Results
1.0 mH
Optional Filter
1
2
+
100
V
out
V