NCP3063 ONSEMI [ON Semiconductor], NCP3063 Datasheet - Page 10

• Manufacturer Part Number: NCP3063
• Description: 1.5 A, Step−Up/Down/Inverting Switching Regulators
• Manufacturer: ONSEMI [ON Semiconductor]

Value of Components
Test Results
Name
L201
D201
C202
C205
C203
Line Regulation
Load Regulation
Output Ripple
Efficiency
Short Circuit Current
+V
IN
J202
J201
GND
= +12 V
1
1
0.1 mF
Figure 15. Buck Demoboard Layout
C201
Test
Value
47 mH, I
1 A, 40 V Schottky Rectifier
220 mF, 50 V, Low ESR
470 mF, 25 V, Low ESR
2.2 nF Ceramic Capacitor
sat
+
220 mF / 50 V
> 1.5 A
R201
0R15
C202
V
V
V
V
V
in
in
in
in
in
= 9 V to 12 V, I
= 12 V, I
= 12 V, I
= 12 V, I
= 12 V, R
Figure 14. Typical Buck Application Schematic
NCP3063, NCP3063B, NCV3063
8
7
6
5
R202
2K4 ±1%
o
o
o
N.C.
COMP
I
V
load
PK
= 80 mA to 800 mA
= 40 mA to 800 mA
= 400 mA to 800 mA
CC
NCP3063
U201
= 0.15 W
o
TCAP
= 800 mA
SWC
SWE
GND
http://onsemi.com
1
2
3
4
3K9 ±1%
Condition
R203
10
C203
2.2 nF
Figure 16. Efficiency vs. Output Current for the Buck
76
74
72
70
68
66
64
Name
R201
R202
R203
C201
C202
Demo Board at V
0.1 0.2
L201
1N5819
D201
0.3
47 mH
Value
150 mW, 0.5 W
2.40 kW
3.90 kW
100 nF Ceramic Capacitor
100 nF Ceramic Capacitor
C206
0.1 mF
0.4
OUTPUT LOAD (Adc)
in
= 12 V, V
0.5
+
470 mF / 25 V
C205
8 mV
9 mV
≤ 85 mV
> 73%
1.25 A
0.6
out
+V
= 3.3 V, T
pp
OUT
0.7
Results
= +3.3 V / 800 mA
0.8
J204
J203
GND
A
1
1
= 255C
0.9
1.0