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MAX1544 Datasheet(PDF) 9 Page - Maxim Integrated Products |
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MAX1544 Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 42 page Dual-Phase, Quick-PWM Controller for AMD Hammer CPU Core Power Supplies _______________________________________________________________________________________ 9 OUTPUT VOLTAGE vs. LOAD CURRENT (VOUT = 1.50V) LOAD CURRENT (A) 40 50 30 10 20 1.40 1.42 1.44 1.46 1.48 1.50 1.52 1.38 060 100 90 80 70 60 50 0.1 1 10 100 EFFICIENCY vs. LOAD CURRENT (VOUT = 1.50V) LOAD CURRENT (A) VIN = 20V VIN = 12V VIN = 8V SKIP = REF SKIP = VCC OUTPUT VOLTAGE vs. LOAD CURRENT (VOUT = 1.00V) LOAD CURRENT (A) 50 10 30 20 40 0.92 0.94 0.96 0.98 1.00 1.02 0.90 060 100 90 80 50 0.1 10 100 70 60 LOAD CURRENT (A) 1 EFFICIENCY vs. LOAD CURRENT (VOUT = 1.00V) VIN = 20V VIN = 12V VIN = 8V SKIP = REF SKIP = VCC OUTPUT VOLTAGE vs. LOAD CURRENT (VOUT = 0.80V) LOAD CURRENT (A) 30 SUS = VCC 10 20 0.74 0.76 0.78 0.80 0.82 0.72 040 100 90 80 50 0.1 10 100 70 60 LOAD CURRENT (A) 1 DUAL-PHASE EFFICIENCY vs. LOAD CURRENT (VOUT = 0.80V) VIN = 20V VIN = 8V VIN = 12V SKIP = REF 100 90 80 50 0.1 10 100 70 60 LOAD CURRENT (A) 1 SINGLE-PHASE EFFICIENCY vs. LOAD CURRENT (VOUT = 0.80V) VIN = 20V VIN = 8V VIN = 12V SKIP = GND SWITCHING FREQUENCY vs. LOAD CURRENT LOAD CURRENT (A) 30 10 20 100 200 300 400 0 040 VOUT = 1V (NO LOAD) SKIP MODE (SKIP = REF) FORCED-PWM (SKIP = VCC) NO-LOAD SUPPLY CURRENT vs. INPUT VOLTAGE (FORCED-PWM MODE) INPUT VOLTAGE (V) 20 25 5 15 10 30 60 90 120 150 0 030 IIN SKIP = VCC ICC + IDD Typical Operating Characteristics (Circuit of Figure 1, VIN = 12V, VCC = VDD = 5V, SHDN = SKIP = VCC, D0–D4 set for 1.5V (SUS = GND), S0–S1 set for 1V (SUS = VCC), OFS = GND, TA = +25°C, unless otherwise specified.) |
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