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| MIC28512 Datasheet, PDF (12/34 Pages) Microchip Technology – 70V, 2A Synchronous Buck Regulator | |||
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MIC28512
VIN
(2V/div)
VSW
(10V/div)
VOUT
(2V/div)
VIN = 12V
VOUT = 5V
IOUT = 2A
ILX
(2A/div)
Time (400ms/div)
FIGURE 2-31:
VIN Start-Up with 1V
Pre-Biased Output (MIC28512-2).
VIN
(10V/div)
VSW
(010V/div)
VOUT
(2V/div)
IDC = 10mA
ILDO = 1mA
VIN = 3.6V
VIN = 12V
VOUT = 5V
IOUT = 2A
ILX
(2A/div)
Time (400ms/div)
FIGURE 2-32:
VIN Start-Up with 2V
Pre-Biased Output (MIC28512-2).
VIN = 12V
VOUT = 5V
VIN
(5V/div)
ILX
(1A/div)
FIGURE 2-33:
(MIC28512-2).
Time (200ms/div)
Start-Up Into Short Circuit
VEN
(1V/div)
V = 12V
IN
VOUT = 5V
ILX
(1A/div)
FIGURE 2-34:
Time (1ms/div)
Enable into Short Circuit.
VOUT
(2V/div)
IL
(1A/div)
V = 12V
IN
VOUT = 5V
Time (4μs/div)
FIGURE 2-35:
Inductor Peak Current
(Output Short Applied) (MIC28512-2).
VIN = 12V
VOUT = 5V
VOUT
(2V/div)
IL
(2A/div)
FIGURE 2-36:
Time (20μs/div)
Short Circuit (MIC28512-2).
DS20005524A-page 12
ï£ 2016 Microchip Technology Inc.
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