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| ISL78236 Datasheet, PDF (12/24 Pages) Intersil Corporation – Dual 3A Current Sharing 2.5MHz High Efficiency Synchronous Buck Regulator | |||
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ISL78236
Typical Operating Performance for Dual PWM Operation
Unless otherwise noted, operating conditions are: TA = +25°C; VOUT1 = 1.8V; VOUT2 = 1.8V; IOUT1 = 0A to 3A; IOUT2 = 0A to 3A, L1 = L2 = 0.6µH,
COUT1 = 2x22µF, COUT2 = 2x22µF, FSW = 2.5MHz. (Continued)
VIN = 3.3V
EN1
VOUT
VIN = 3.3V
EN2
VOUT
LX1 VOLTAGE
LX2 VOLTAGE
PG1
FIGURE 17. SOFT-START WITH NO LOAD CHANNEL 1
PG2
FIGURE 18. SOFT-START WITH NO LOAD CHANNEL 2
EN1
VIN = 3.3V
VOUT
LX1 VOLTAGE
PG1
FIGURE 19. SOFT-START AT 3A LOAD CHANNEL 1
VIN = 3.3V
EN1
VOUT
LX1 VOLTAGE
PG1
FIGURE 21. SOFT-DISCHARGE SHUTDOWN CHANNEL 1
EN2
VIN = 3.3V
VOUT
LX2 VOLTAGE
PG2
FIGURE 20. SOFT-START AT 3A LOAD CHANNEL 2
VIN = 3.3V
EN2
VOUT
LX2 VOLTAGE
PG2
FIGURE 22. SOFT-DISCHARGE SHUTDOWN CHANNEL 2
Submit Document Feedback 12
FN8624.0
April 28, 2014
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