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MAX783REBX Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX783REBX Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 28 page Triple-Output Power-Supply Controller for Notebook Computers 4 _______________________________________________________________________________________ Note 1: Output current is further limited by maximum allowable package power dissipation. Note 2: Because the reference uses VL as its supply, the REF line regulation error is insignificant. Note 3: The main switching outputs track the reference voltage. Loading the reference reduces the main outputs slightly according to the closed-loop gain (AVCL) and the reference voltage load regulation error. AVCL for the +3.3V supply is unity gain. AVCL for the +5V supply is 1.54. 50 1m 60 100 10 80 70 10m 1 90 100m +5V OUTPUT CURRENT (A) EFFICIENCY vs. +5V OUTPUT CURRENT V+ = 15V N1-N4 = IRF7101 ON3 = LOW F = 200kHz V+ = 6V 50 1m 60 100 10 80 70 10m 1 90 100m +3.3V OUTPUT CURRENT (A) EFFICIENCY vs. +3.3V OUTPUT CURRENT V+ = 15V N1-N4 = IRF7101 ON3 = ON5 = HIGH F = 200kHz V+ = 6V 500 0 05 20 MAXIMUM +15V VDD OUTPUT CURRENT vs. SUPPLY VOLTAGE 100 200 SUPPLY VOLTAGE (V) 10 15 VDD > +13V +3.3V REGULATING +3.3V LOAD = 0A +3.3V LOAD = 3A 300 400 QUIESCENT SUPPLY CURRENT vs. SUPPLY VOLTAGE 0 1 2 13 14 0 6 12 18 24 30 SUPPLY VOLTAGE (V) ON3 = ON5 = HIGH STANDBY SUPPLY CURRENT vs. SUPPLY VOLTAGE 0 0.5 1.0 1.5 2.0 2.5 0 6 12 18 24 30 ON3 = ON5 = 0V SUPPLY VOLTAGE (V) __________________________________________Typical Operating Characteristics (Circuit of Figure 1, Transpower TTI5902 transformer, TA = +25°C, unless otherwise noted.) PARAMETER CONDITIONS UNITS DL3/DL5 Sink/Source Current VOUT = 2V 1 A DH3/DH5 Sink/Source Current BST3-LX3 = BST5-LX5 = 4.5V, VOUT = 2V 1 A DL3/DL5 On-Resistance High or low 7 Ω DH3/DH5 On-Resistance High or low, BST3-LX3 = BST5-LX5 = 4.5V 7 Ω MIN TYP MAX ELECTRICAL CHARACTERISTICS (continued) (V+ = 15V, GND = PGND = 0V, IVL = IREF = 0mA, S — H — D — N – = ON3 = ON5 = 5V, other digital input levels are 0V or +5V, TA = TMIN to TMAX, unless otherwise noted.) |
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