ADP1612 데이터 시트보기 (PDF) - Analog Devices
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ADP1612 Datasheet PDF : 28 Pages
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ADP1612/ADP1613
T
OUTPUT VOLTAGE (5V/DIV)
INDUCTOR CURRENT
(200mA/DIV)
VIN = 5V
VOUT = 12V
ILOAD = 20mA
L = 6.8µH
fSW = 1.3MHz
COUT = 10µF
SWITCH VOLTAGE (10V/DIV)
TIME (400ns/DIV)
Figure 28. ADP1612/ADP1613 Switching Waveform in Discontinuous
Conduction Mode
T
OUTPUT VOLTAGE (5V/DIV)
INDUCTOR CURRENT
(500mA/DIV)
VIN = 5V
VOUT = 12V
ILOAD = 200mA
L = 6.8µH
fSW = 1.3MHz
COUT = 10µF
SWITCH VOLTAGE (10V/DIV)
TIME (400ns/DIV)
Figure 29. ADP1612/ADP1613 Switching Waveform in Continuous
Conduction Mode
T
OUTPUT VOLTAGE (5V/DIV)
VIN = 5V
VOUT = 12V
ILOAD = 250mA
L = 6.8µH
fSW = 1.3MHz
SWITCH VOLTAGE (10V/DIV)
INDUCTOR CURRENT (2A/DIV)
EN PIN VOLTAGE (5V/DIV)
TIME (20ms/DIV)
Figure 30. ADP1612/ADP1613 Start-Up from VIN, CSS =33 nF
Data Sheet
T OUTPUT VOLTAGE (5V/DIV)
SWITCH VOLTAGE (10V/DIV)
VIN = 5V
VOUT = 12V
ILOAD = 250mA
L = 6.8µH
fSW = 1.3MHz
INDUCTOR CURRENT (2A/DIV)
EN PIN VOLTAGE (5V/DIV)
TIME (20ms/DIV)
Figure 31. ADP1612/ADP1613 Start-Up from VIN, CSS =100 nF
T
OUTPUT VOLTAGE (5V/DIV)
SWITCH VOLTAGE (10V/DIV)
VIN = 5V
VOUT = 12V
ILOAD = 250mA
L = 6.8µH
fSW = 1.3MHz
INDUCTOR CURRENT (500mA/DIV)
EN PIN VOLTAGE (5V/DIV)
TIME (400µs/DIV)
Figure 32. ADP1612/ADP1613 Start-Up from Shutdown, CSS = 33 nF
T
OUTPUT VOLTAGE (5V/DIV)
SWITCH VOLTAGE (10V/DIV)
VIN = 5V
VOUT = 12V
ILOAD = 250mA
L = 6.8µH
fSW = 1.3MHz
INDUCTOR CURRENT (500mA/DIV)
EN PIN VOLTAGE (5V/DIV)
TIME (400µs/DIV)
Figure 33. ADP1612/ADP1613 Start-Up from Shutdown, CSS = 100 nF
Rev. D | Page 10 of 28
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