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MAX1816 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1816 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 49 page  Dual Step-Down Controllers Plus Linear- Regulator Controller for Notebook Computers _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (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 = 0°C to +85°C. Typical values are at TA = +25 °C, unless otherwise noted.) PARAMETER CONDITIONS MIN TYP MAX UNITS 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 GDS Input Bias Current -3 +3 µA FB2 Input Bias Current -0.2 +0.2 µA OUT2 Input Resistance 70 k Ω 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) 230 260 290 TON = REF (550kHz) 165 190 215 TON = open (300kHz) 320 355 390 BUCK1 On-Time (Note 2) V+ = 12V, CS1- = 1.2V TON = VCC (200kHz) 465 515 565 ns V+ = 5V, OUT2 = 2.5V TON = GND (715kHz) 630 720 810 TON = REF (390kHz) 495 550 605 TON = open (390kHz) 495 550 605 BUCK2 On-Time (Note 2) V+ = 12V, OUT2 = 2.5V TON = VCC (260kHz) 740 825 910 ns TON = open, TON = VCC (Note 2) 425 500 Minimum Off-Time TON = GND, TON = REF (Note 2) 325 375 ns Quiescent Supply Current (VCC) Measured at VCC, with FBS, OUT2, FB2, and LINFB forced above the no-load regulation point 2200 3800 µA Partial Shutdown Supply Current (Linear Regulator On Only) VSKP1/SDN = 0V, VSKP2/SDN = 0V, VLIN/SDN = 5V; measured at VCC, with FBS and LINFB forced above the no-load regulation point 425 650 µA Partial Shutdown Supply Current (BUCK1 and Linear Regulator) VSKP1/SDN = 5V, VSKP2/SDN = 0V, VLIN/SDN = 5V; measured at VCC, with FBS and LINFB forced above the no-load regulation point 1825 3000 µA Partial Shutdown Supply Current (BUCK2 Only) VSKP1/SDN = 0V, VSKP2/SDN = 5V, VLIN/SDN = 0V; measured at VCC, with OUT2 and FB2 forced above the regulation point 600 1100 µA Quiescent Supply Current (VDD) Measured at VDD, with FBS, OUT2, and FB2 forced above the no-load regulation point <1 5 µA |
Similar Part No. - MAX1816 |
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Similar Description - MAX1816 |
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