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| ISL6237 Datasheet, PDF (17/35 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers | |||
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ISL6237
Typical Performance Curves
Circuit of Figures 62, 63 and 64, no load on LDO, OUT1, OUT2, and REF, VIN = 12V,
EN2 = EN1 = VCC, VBYP = 5V, PVCC = 5V, VEN_LDO = 5V, TA = -40°C to +100°C, unless
otherwise noted. Typical values are at TA = +25°C. (Continued)
EN1 5V/DIV
VOUT1 0.5V/DIV
IL1 2A/DIV
EN1 5V/DIV
VOUT1 0.5V/DIV
IL1 5A/DIV
POK1 2V/DIV
FIGURE 50. START-UP VOUT1 = 1.5V (NO LOAD, PWM MODE)S
POK1 2V/DIV
FIGURE 51. START-UP VOUT1 = 1.5V (FULL LOAD,
PWM MODE)
EN2 5V/DIV
VOUT2 0.5V/DIV
IL2 2A/DIV
POK2 2V/DIV
FIGURE 52. START-UP VOUT2 = 1.05V (NO LOAD,
SKIP MODE)
EN2 5V/DIV
VOUT2 0.5V/DIV
IL2 2A/DIV
POK2 2V/DIV
FIGURE 53. START-UP VOUT1 = 1.05V (NO LOAD,
PWM MODE)
EN2 5V/DIV
VOUT2 0.5V/DIV
IL2 2A/DIV
POK2 2V/DIV
FIGURE 54. START-UP VOUT1 = 1.05V (FULL LOAD,
PWM MODE)
17
EN2 5V/DIV
VOUT2 0.5V/DIV
VOUT1 2V/DIV
POK2 5V/DIV
POK1 5V/DIV
FIGURE 55. DELAYED START-UP (VOUT1 = 1.5V,
VOUT2 = 1.05V, EN1 = REF)
FN6418.4
March 18, 2008
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