ADP3210 Datasheet, PDF (11/38 Pages) ON Semiconductor – 7-Bit Programmable Multiphase Mobile CPU Synchronous

ADP3210
TYPICAL PERFORMANCE CHARACTERISTICS
1000
VID = 1.4125V
Output Voltage
VID = 1.2125V
1
Enable
VID = 1.1V
VID = 0.8125
VID = 0.6125
2 Phase Configuration
100
10
100
Rt RESISTANCE (kΩ)
Figure 6. Master Clock Frequency vs. RT
1000
2
CLKEN
3
4
PWRGD
1: 500mV/div 3: 5V/div 2ms/div
2: 5V/div
4: 5V/div
Figure 9. Start-UP Waveforms
400
350
300
250
200
150
0
0.2
0.4 0.6
0.8
VID (V)
1.0 1.2
1.4
Figure 7. Master Clock vs. VID
Output Voltage
3
Phase 1
Switch Node
1
Phase 2
Switch Node
2
1: 10V/div 3: 50mV/div 1µs/div
2: 10V/div Input = 12V, Output = 1V
15A to 50A Load Step
Figure 10. Load Transient with 2 Phases
1.26
1.22
1.18
1.14
1.1
1.06
1.02
0
+2%
-2%
10
20
30
40
50
60
70
LOAD CURRENT (A)
Figure 8. Load Line Accuracy
Output Voltage
3
Phase 1
Switch Node
1
Phase 2
Switch Node
2
1: 10V/div 3: 50mV/div 1µs/div
2: 10V/div Input = 12V, Output = 1V
50A to 15A Load Step
Figure 11. Load Transient with 2 Phases
Rev. 0.3 | Page 11 of 38