ADP3209 ON Semiconductor, ADP3209 Datasheet - Page 11

• Manufacturer Part Number: ADP3209
• Description: 5-bit, Programmable, Single-phase, Synchronous Buck Controller
• Manufacturer: ON Semiconductor

1.35
1.30
1.25
1.20
1.15
3
4
1
35
30
25
20
15
10
5
0
CH1 2.00V
CH3
Figure 11. VCC Current vs. VCC Voltage with Enable Low
0
0
SPECIFIED LOAD LINE
2.00V
MEASURED LOAD LINE
CH2 1.00V
CH4 1.00V
Figure 12. Start-Up Waveforms
Figure 10. Load Line Accuracy
5
2
LOAD CURRENT (A)
VCC VOLTAGE (V)
M400μs
T
13.20%
OUTPUT VOLTAGE
PWRGD
10
4
EN
A CH1
SS
+2%
–2%
V
IN
800mV
= 12V
Rev. 2 | Page 11 of 32 | www.onsemi.com
15
6
4
2
3
1
4
2
3
1
4
2
1
CH1 5.00V
CH3
CH1 5.00V
CH3
CH1 100mV
SWITCH NODE
Figure 15. Load Transient, 2 A to 10 A, V
5.00A
5.00A
Figure 13. DCM Waveforms, 3 A Load Current
Figure 14. CCM Waveforms, 6 A Load Current
SWITCH NODE
LOW-SIDE
GATE DRIVE
INDUCTOR CURRENT
LOW-SIDE GATE DRIVE
CH2 5.00V
CH4 20.0mV~
CH2 5.00V
CH4 20.0mV~
CH2
CH4 20.0mV
OUTPUT VOLTAGE
SWITCH NODE
10.0V~
OUTPUT VOLTAGE
OUTPUT VOLTAGE
LOAD CURRENT
M400ns
M400ns
T
T
M40.0μs
T
10.00%
10.00%
25.00%
INDUCTOR
CURRENT
A CH1
A CH3
A CH3
IN
= 19 V
ADP3209
120mV
4.00A
4.60A