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ADP2106-EVAL Datasheet(PDF) 11 Page - Analog Devices |
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ADP2106-EVAL Datasheet(HTML) 11 Page - Analog Devices |
11 / 32 page ADP2105/ADP2106/ADP2107 Rev. 0 | Page 11 of 32 CH1 50mV 6% CH4 200mAΩ CH3 2V M 2µs A CH3 3.88V T 3 4 1 INDUCTOR CURRENT OUTPUT VOLTAGE (AC-COUPLED) LX NODE (SWITCH NODE) CH1 20mV 17.4% CH4 1AΩ CH3 2V M 1µs A CH3 3.88V T 3 4 1 LX NODE (SWITCH NODE) OUTPUT VOLTAGE (AC-COUPLED) INDUCTOR CURRENT Figure 28. PFM Mode of Operation at Very Light Load (10 mA) Figure 31. PWM Mode of Operation at Medium/Heavy Load (1.5 A) CH1 50mV 17.4% CH4 200mAΩ CH3 2V M 400ns A CH3 3.88V T 3 4 1 LX NODE (SWITCH NODE) OUTPUT VOLTAGE (AC-COUPLED) INDUCTOR CURRENT CH1 1V 45% CH4 1AΩ CH3 5V M 4µs A CH3 1.8V T 3 4 1 INDUCTOR CURRENT OUTPUT VOLTAGE CHANNEL 3 FREQUENCY = 336.6kHz Δ: 2.86A @: 2.86A LX NODE (SWITCH NODE) Figure 29. DCM Mode of Operation at Light Load (100 mA) Figure 32. Current Limit Behavior of ADP2107 (Frequency Foldback) CH1 20mV 13.4% CH4 1AΩ CH3 2V M 2µs A CH3 1.84V T 3 4 1 LX NODE (SWITCH NODE) OUTPUT VOLTAGE (AC-COUPLED) INDUCTOR CURRENT CH1 1V 20.2% CH4 500mAΩ CH3 5V M 400µs A CH1 1.84V T 3 4 1 ENABLE VOLTAGE INDUCTOR CURRENT OUTPUT VOLTAGE Figure 30. Minimum Off Time Control at Dropout Figure 33. Startup and Shutdown Waveform (CSS = 1 nF → SS Time = 1 ms) |
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