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ADP2504ACPZ-3.3-R7 数据表(PDF) 9 Page - Analog Devices |
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ADP2504ACPZ-3.3-R7 数据表(HTML) 9 Page - Analog Devices |
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9 / 16 page ![]() Data Sheet ADP2503/ADP2504 Rev. D | Page 9 of 16 CH1 100mV BW CH4 2.00V BW CH2 500mA Ω M100µs A CH2 410mA 4 1 2 T 45.40% VIN = 3.6V VOUT = 3.3V SW1 IOUT VOUT Figure 21. Mode Change by Load Transients, Load Fall (VOUT = 3.3 V) CH1 50.0mV BW CH4 5.00V BW CH3 5.00V BW CH2 250mA Ω M 400ns A CH3 2.40V 3 4 1 2 T 50.00% VIN = 2.3V VOUT = 4.0V SW2 SW1 ISW VOUT Figure 22. Typical PWM Switching Waveform, Boost Operation (VOUT = 4.0 V) CH1 20.0mV BW CH4 5.00V BW CH3 5.00V BW CH2 250mA Ω M 400ns A CH4 2.40V 3 1 2 4 T 50.80% VIN = 4.4V VOUT = 4.0V SW2 SW1 ISW VOUT Figure 23. Typical PWM Switching Waveform, Buck Operation (VOUT = 4.0 V) CH1 20.0mV BW CH4 5.00V BW CH3 5.00V BW CH2 250mA Ω M 400ns A CH4 2.40V 3 1 2 4 T 50.00% VIN = 3.0V VOUT = 3.3V SW2 SW1 ISW VOUT Figure 24. Typical PWM Switching Waveform, Buck-Boost Operation (VOUT = 3.3 V) CH1 100mV BW CH4 5.00V BW CH3 5.00V BW CH2 1.00A Ω M 4.00µs A CH2 820mA 3 4 1 2 T 15.20% VIN = 3.0V VOUT = 3.3V SW2 SW1 ISW VOUT Figure 25. Typical PSM Switching Waveform, Buck-Boost Operation (VOUT = 3.3 V) CH1 2.00V BW CH4 5.00V BW CH3 5.00V BW CH2 500mAΩ BW M 100µs A CH3 2.40V 4 1 3 2 T 9.400% VOUT = 3.3V EN SW1 ISW VOUT Figure 26. Startup into PWM Mode (VOUT = 3.3 V, IOUT = 300 mA) |
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