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ISL8033IRZ View Datasheet(PDF) - Intersil

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Description
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ISL8033IRZ Datasheet PDF : 18 Pages
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ISL8033, ISL8033A
Typical Operating Performance ISL8033
Unless otherwise noted, operating conditions are: TA = +25°C, VIN = 5V, EN = VIN, L1 = L2 = 1.5µH, C1 = C2 = C4 = 2x22µF, VOUT1 = 1.2V, VOUT2 = 1.8V,
IOUT1 = IOUT2 = 0A to 3A. (Continued)
LX1 2V/DIV
VOUT1 RIPPLE 20mV/DIV
LX2 2V/DIV
VOUT1 RIPPLE 50mV/DIV
VOUT2 RIPPLE 20mV/DIV
FIGURE 15. STEADY STATE OPERATION WITH FULL LOADS AT BOTH
CHANNELS
IL1 2A/DIV
FIGURE 16. LOAD TRANSIENT CHANNEL 1 (PWM)
VOUT2 RIPPLE 50mV/DIV
IL2 2A/DIV
FIGURE 17. LOAD TRANSIENT CHANNEL 2 (PWM)
EN1 2V/DIV
VOUT1 0.5V/DIV
IL1 0.5A/DIV
PG 5V/DIV
FIGURE 18. SOFT-START WITH NO LOAD CHANNEL 1
EN2 2V/DIV
VOUT2 1V/DIV
IL2 0.5A/DIV
EN1 2V/DIV
VOUT1 0.5V/DIV
IL1 1A/DIV
PG 2V/DIV
PG 5V/DIV
FIGURE 19. SOFT-START WITH NO LOAD CHANNEL 2
10
FIGURE 20. SOFT-START AT FULL LOAD CHANNEL 1
FN6854.2
March 24, 2011
 

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