ISL6410 Datasheet, PDF (11/13 Pages) Intersil Corporation – Single Synchronous Buck Regulators with Integrated FET

ISL6410, ISL6410A
Performance Curves and Waveforms (Continued)
VOUT
VIN = 3.3V, VOUT = 1.2V
1µs/DIV
CH1 = 20mV/DIV
FIGURE 14. RIPPLE WAVEFORM FOR ISL6410
-40
VIN = 3.3V, VOUT = 1.2V
-50
-60
-70
-80
-90
-100
-110
-120
NOISE LEVEL 761kHz = -54.0dBm
CENTER 2.75MHz, SPAN = 4.5MHz
FIGURE 16. SWITCHING HARMONICS AND NOISE FOR
ISL6410
VOUT
VIN = 5.0V, VOUT = 1.2V
1µs/DIV
CH1 = 20mV/DIV
FIGURE 15. RIPPLE WAVEFORM FOR ISL6410A
-40
VIN = 5.0V, VOUT = 1.2V
-50
-60
-70
-80
-90
-100
-110
-120
NOISE LEVEL 732kHz = -65.3dBm
CENTER 2.75MHz, SPAN = 4.5MHz
FIGURE 17. SWITCHING HARMONICS AND NOISE FOR
ISL6410A
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