IR3710MTRPBF
CH1:Vout(50mV/div), CH2: PHASE (5V/div);50uS/div
Figure 12. Frequency Variation less than 10% at 20A Load
CH1:Vout(50mV/div), CH3: Inductor Current (10A/div),
CH4: On-Board Load: 0A-14A ;50uS/div
Figure 13. Load Step Transient in CCM @ Vin = 19V
CH1:Vout(50mV/div), CH3: Inductor Current (10A/div),
CH4: On-Board Load: 0.1A-12A; 50uS/div
Figure 14. Load Step Transient in DCM @ Vin = 19V
CH2:Vout(20mV/div), CH3: Input Current (10A/div), CH4:
Input Voltage (5V/div) 8V to 19V; 100uS/div
Figure 15. Input Voltage Step at 2A Load with 0.1V/uS
CH1:Vout(0.5V/div), CH2: PHASE (10V/div), CH3: FB
(0.5V/div), CH4: PGOOD (5V/div); 500uS/div
Figure 16. Over Current Protection at 30A
CH1:Vout(0.5V/div), CH2: PHASE (10V/div), CH3: EN
(5V/div), CH4: PGOOD (2V/div); 200uS/div
Figure 17. Shutdown by EN in DCM @500mA
Page 9 of 20
www.irf.com
IR Confidential
4/26/10
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