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MIC2128 Datasheet, PDF (12/32 Pages) Microchip Technology – 75V, Synchronous Buck Controller Featuring Adaptive On-Time Control with External Soft Start
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MIC2128
Note: Unless otherwise indicated, VVIN = 48V, fSW = 300 kHz, RILIM = 1.5 k, L = 10 µH, VEXTVDD = VOUT, TA = +25°C
(refer to the Typical Application circuit).
VVIN
20V/div
VOUT
2V/div
VOUT
500 mV/div
IL
5A/div
FIGURE 2-37:
10 ms/div
Power-Up into Output Short.
VOUT
2V/div
IL
5A/div
FIGURE 2-40:
Circuit.
VOUT
200 mV/div
AC coupled
4 ms/div
Recovery from Output Short
IOUT
5A/div
FIGURE 2-38:
Threshold.
4ms/div
Output Current Limit
VOUT
2V/div
IOUT
5A/div
FIGURE 2-41:
(IOUT = 0A to 5A).
200 µs/div
Load Transient Response
VOUT
200 mV/div
AC coupled
IL
5A/div
FIGURE 2-39:
2 ms/div
Output Short Circuit.
IOUT
2A/div
200 µs/div
FIGURE 2-42:
Load Transient Response
(IOUT = 0A to 2.5A).
DS20005620A-page 12
 2016 Microchip Technology Inc.
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