SC2447 Просмотр технического описания (PDF) - Semtech Corporation
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SC2447 Datasheet PDF : 26 Pages
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SC2447
POWER MANAGEMENT
Typical Application Circuit Performance
Circuit Conditions: 2-Output Configuration as in Figure 16. VIN = 12V, VOUT1 = 2.5V, VOUT2 = 1.2V, ROSC = 51.1kΩ, SYNC = 0, and TA = 25°C.
Output Voltage Ripple (VOUT2)
Load Transient Response (VOUT2)
Overload Hiccup (VOUT2)
VOUT2
20mV/div
IOUT2
10A/div
VSW2
10V/div
IOUT2=25A
2µs/DIV
VOUT2
0.1V/div
IOUT2
5A/div
IOUT2=20A to 25A 200µs/div
VOUT2
0.5V/div
VSS2/EN2
2V/div
IOUT2
20A/div
50ms/div
VOUT1
20mV/div
VOUT2
20mV/div
Output Voltage Ripple
VOUT1 & VOUT2
VSW2
10V/div
VSW1
10V/div
IOUT1=20A
IOUT2=25A
1µs/DIV
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Circuit Conditions: 2-Ouput Configuration, VIN = 12V, LOUT=0.4uH for VOUT= 1.2V, LOUT=1uH for VOUT= 2.5V, 3.3V, and 5.0V, ROSC = 51.1kΩ, and TA = 25°C.
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