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MAX1816 Datasheet(PDF) 8 Page - Maxim Integrated Products |
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MAX1816 Datasheet(HTML) 8 Page - Maxim Integrated Products |
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8 / 49 page  Dual Step-Down Controllers Plus Linear- Regulator Controller for Notebook Computers 8 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (Circuit of Figure 1, V+ = 15V, VOUT1 = 1.20V, VOUT2 = 2.50V, VCC = VDD = 5.0V, VSKP1/SDN = VSKP2/SDN = VLIN/SDN = 5.0V, TA = -40°C to +100°C, unless otherwise noted.) (Note 6) PARAMETER CONDITIONS MIN TYP MAX UNITS TON = REF, open, or VCC 228 Battery voltage V+ TON = GND 2 16 Input Voltage Range VCC, VDD 4.5 5.5 V DAC codes from 0.600V to 1.750V (MAX1816) BUCK1 DC Output-Voltage Accuracy V+ = 4.5V to 28V, includes load regulation errors, OFS_ = GDS = AGND, CS1+ = CS1- = FBS DAC codes from 0.700V to 2.000V (MAX1994) -1.5 +1.5 % FB2 = GND 2.463 2.538 FB2 = VCC 1.773 1.827 BUCK2 Error Comparator Threshold (DC Output-Voltage Accuracy) (Note 1) V+ = 4.5V to 28V FB2 = OUT2 0.985 1.015 V OUT2 Adjust Range 1.0 5.5 V GAIN = REF 1.425 1.575 GAIN = open 1.900 2.100 Voltage-Positioning Gain GAIN = VCC 3.800 4.200 V/V Current-Sense Differential Input Range (CS1+, CS1-) 200 mV Remote-Sense Differential Input Range (CS1+, FBS) 300 mV Remote-Sense Differential Input Range (GDS, AGND) 200 mV CS1+, FBS Input Bias Current -300mV < VCS1+ - VFBS < +300mV -60 +60 µA CS1- Input Bias Current -100mV < VCS1+ - VCS1- < +100mV, VCS1- = VFBS -60 +60 µA 252kHz nominal; RTIME =143k Ω -8 +8 TIME Frequency Accuracy 53kHz nominal to 530kHz nominal; RTIME = 680k Ω to 68kΩ -12 +12 % V+ = 5V, CS1- = 1.2V TON = GND (1000kHz) 230 290 TON = REF (550kHz) 165 215 TON = open (300kHz) 320 390 BUCK1 On-Time (Note 2) V+ = 12V, CS1- = 1.2V TON = VCC (200kHz) 465 565 ns V+ = 5V, OUT2 = 2.5V TON = GND (715kHz) 630 810 TON = REF (390kHz) 495 605 TON = open (390kHz) 495 605 BUCK2 On-Time (Note 2) V+ = 12V, OUT2 = 2.5V TON = VCC (260kHz) 740 910 ns TON = open, TON = VCC (Note 2) 500 Minimum Off-Time TON = GND, TON = REF (Note 2) 375 ns Quiescent Supply Current (VCC) Measured at VCC, with FBS, OUT2, FB2, and LINFB forced above the no-load regulation point 4500 µA |
Similar Part No. - MAX1816 |
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Similar Description - MAX1816 |
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