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ADP5072ACBZ-R7 Datasheet(PDF) 12 Page - Analog Devices

Part # ADP5072ACBZ-R7
Description  1 A/0.6 A DC to DC Switching Regulator Independent Positive and Negative Outputs
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADP5072ACBZ-R7 Datasheet(HTML) 12 Page - Analog Devices

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ADP5072
Data Sheet
Rev. 0 | Page 12 of 24
CH1 500mV
M2.00µs A CH3
82.0mA
3
2
1
T
7.960000µs
B
W
CH2 10.0V
CH3 100mA
B
W
B
W
VPOS
SW1
IINDUCTOR
Figure 33. Boost Regulator Skip Mode Operation Showing Inductor Current
(IINDUCTOR), Switch Node Voltage, and Output Ripple, VIN = 12 V, VPOS = 15 V,
ILOAD1 = 4 mA, fSW = 2.4 MHz, TA = 25°C
CH1 500mV
M200ns
A CH3
100mA
3
2
1
T
7.960000µs
B
W
CH2 10.0V
CH3 200mA
B
W
B
W
VPOS
SW1
IINDUCTOR
Figure 34. Boost Regulator Discontinuous Conduction Mode Operation
Showing Inductor Current (IINDUCTOR), Switch Node Voltage, and Output
Ripple, VIN = 5 V, VPOS = 15 V, ILOAD1 = 6 mA, fSW = 2.4 MHz, TA = 25°C
CH1 500mV
M200ns
A CH4
310mA
3
2
1
T
7.960000µs
B
W
CH2 10.0V
CH3 500mA
B
W
B
W
VPOS
SW1
IINDUCTOR
Figure 35. Boost Regulator Continuous Conduction Mode Operation
Showing Inductor Current (IINDUCTOR), Switch Node Voltage, and Output
Ripple, VIN = 5 V, VPOS = 15 V, ILOAD1 = 90 mA, fSW = 2.4 MHz, TA= 25°C
T
12.00000µs
CH1 5.00V
M4.00µs
A CH3
35.0mA
3
1
2
B
W
CH2 500mV
CH3 50.0mA
B
W
B
W
VNEG
SW2
IINDUCTOR
Figure 36. Inverting Regulator Skip Mode Operation Showing Inductor
Current (IINDUCTOR), Switch Node Voltage, and Output Ripple, VIN = 5 V,
VNEG = −5 V, ILOAD2 = 0 mA, fSW = 2.4 MHz, TA = 25°C
B
W
CH1 5.00V
M200ns
A CH3
42.0mA
3
2
1
T
24.46000µs
B
W
CH2 500mV
CH3 50mA
B
W
VNEG
SW2
IINDUCTOR
Figure 37. Inverting Regulator Discontinuous Conduction Mode Operation
Showing Inductor Current (IINDUCTOR), Switch Node Voltage, and Output
Ripple, VIN = 5 V, VNEG = −5 V, ILOAD2 = 6 mA, fSW = 2.4 MHz, TA = 25°C
B
W
CH1 5.00V
M100ns
A CH3
84.0mA
3
2
1
T
24.46000µs
B
W
CH2 500mV
CH3 50mA
B
W
VNEG
SW2
IINDUCTOR
Figure 38. Inverting Regulator Continuous Conduction Mode Operation
Showing Inductor Current (IINDUCTOR), Switch Node Voltage, and Output
Ripple, VIN = 5 V, VNEG = −5 V, ILOAD2 = 35 mA, fSW = 2.4 MHz, TA = 25°C



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