ncp3030a ON Semiconductor, ncp3030a Datasheet - Page 6

• Manufacturer Part Number: ncp3030a
• Description: Ncp3030a, Ncp3030b Synchronous Pwm Controller
• Manufacturer: ON Semiconductor

100
3.345
3.335
3.325
3.315
Input = 12 V, Output = 3.3 V, Load = 9 A,
CH4 (Purple) = V
CH3 (Green) = VHSDR, CH1 (Blue) = SWN
CH1 = CH3: 5.0 V/div, CH2: 10 mV/div, CH4: 100 mV/div
Time Scale: 400 ns/div
90
80
70
60
50
40
30
3.35
3.34
3.33
3.32
3.31
Figure 7. Switching Waveforms (NCP3030A)
0
Figure 3. Efficiency vs Output Current and Input
0
Figure 5. Load Regulation vs Input Voltage
V
1
V
in
in
1
= 9 V
= 16 V
2
IN
I
2
out
, CH2 (Red) = V
I
Voltage (NCP3030A)
out
, OUTPUT CURRENT (A)
3
, OUTPUT CURRENT (A)
V
3
in
V
= 12 V
in
4
= 12 V
4
NCP3030A, V
Typical Application Circuit
Figure 36
OUT
NCP3030A, V
Typical Application Circuit
Figure 36
TYPICAL PERFORMANCE CHARACTERISTICS
5
5
,
6
6
out
7
out
= 3.3 V
7
V
= 3.3 V
V
in
in
8
= 24 V
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= 9 V
8
9
9
6
3.345
3.335
3.325
3.35
3.34
3.33
3.32
Input = 12 V, Output = 3.3 V, Load = 9 A,
CH4 (Purple) = V
CH3 (Green) = VHSDR, CH1 (Blue) = SWN
CH1 = CH3: 5.0 V/div, CH2: 10 mV/div, CH4: 100 mV/div
Time Scale: 200 ns/div
90
85
80
75
70
65
60
55
50
Figure 8. Switching Waveforms (NCP3030B)
0
Figure 4. Efficiency vs Output Current and Input
0
Figure 6. Load Regulation vs Input Voltage
V
in
= 9 V
1
1
V
in
= 9 V
2
2
IN
I
I
out
out
, CH2 (Red) = V
V
Voltage NCP3030B)
in
, OUTPUT CURRENT (A)
, OUTPUT CURRENT (A)
3
= 16 V
3
4
4
V
NCP3030B, V
Typical Application Circuit
Figure 36
NCP3030B, V
Typical Application Circuit
Figure 36
in
OUT
5
= 12 V
5
V
,
in
6
6
= 12 V
out
out
7
7
= 3.3 V
V
= 3.3 V
in
= 24 V
8
8
9
9