ADP3210 Datasheet, PDF (12/38 Pages) ON Semiconductor – 7-Bit Programmable Multiphase Mobile CPU Synchronous

ADP3210
Output Voltage
1
Phase 1
Switch Node
2
1: 50mV/div 2: 10V/div
4µs/div
Input = 12V, Output = 1V
3A to 15A Load Step
Figure 12. Load Transient with 1 Phase
Output Voltage
1
Phase 1
Switch Node
2
1: 50mV/div 2: 10V/div
4µs/div
Input = 12V, Output = 1V
15A to 3A Load Step
Figure 13. Load Transient with 1 Phase
Output Voltage
CSCOMP to CSREF
COMP
Phase 1
Switch Node
1: 10V/div 3: 20mV/div 1µs/div
2: 0.5V/div 4: 5mV/div
Input = 12V, Output = 1V
2 Phase
Figure 14. Switching Waveforms
Output Voltage
CSCOMP to CSREF
COMP
Phase 1
Switch Node
1: 10V/div 3: 20mV/div 4µs/div
2: 0.5V/div 4: 5mV/div
Input = 12V, Output = 1V
Single Phase DCM, 1A
Figure 15. Switching Waveforms
Output Voltage
4
PWRGD
3
Phase 1 and 2
LS Gate
1,2
1: 5V/div 3: 2V/div 40µs/div
2: 5V/div 4: 0.5V/div
Input = 12V, Output = 1.2V
FB shorted to GND
Figure 16. OVP and RVP Test
3
Output Voltage
Phase 1
Switch Node
2
Phase 2
Switch Node
1
1: 10V/div 3: 200mV/div 100µs/div
2: 10V/divInput _{= 12V, Load = 0.5A}
1.2V to 0.7V VID Step
PSI = High, DPRSLP = High
Figure 17. VID Step
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