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MAX1816 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1816 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 49 page Dual Step-Down Controllers Plus Linear- Regulator Controller for Notebook Computers 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. V+ to AGND............................................................-0.3V to +30V VCC, VDD to AGND...................................................-0.3V to +6V PGND, GDS to AGND ......................................................... ±0.3V SKP1/SDN, SKP2/SDN, LIN/SDN to AGND............-0.3V to +16V LINBSE, SUS, PERF, DPSLP, PGOOD, LINGOOD, CS1+, CS1-, FBS, D0–D4, OUT2 to AGND.....................................................-0.3V to +6V OFS0, OFS1, OFS2, ILIM1, ILIM2, FB2, REF, TON, TIME, OVPSET, S0, S1, GAIN, CC, LINFB to AGND ....................-0.3V to (VCC + 0.3V) DL1, DL2 to PGND .....................................-0.3V to (VDD + 0.3V) DH1 to LX1 ..............................................-0.3V to (VBST1 + 0.3V) DH2 to LX2 ..............................................-0.3V to (VBST2 + 0.3V) BST1 to LX1..............................................................-0.3V to +6V BST2 to LX2..............................................................-0.3V to +6V LX1, LX2, CS2 to AGND ............................................-2V to +30V REF Short Circuit to AGND.........................................Continuous LINBSE Short Circuit to +6V.......................................Continuous Continuous Power Dissipation (TA = +70 °C) 48-Pin Thin QFN (derate 26.3mW/ °C above +70°C) .2105mW Operating Temperature Range .........................-40 °C to +100°C Junction Temperature ......................................................+150 °C Storage Temperature Range .............................-65 °C to +150°C Lead Temperature (soldering, 10s) .................................+300 °C 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 = 0°C to +85°C. Typical values are at TA = +25 °C, unless otherwise noted.) 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 +1 % FB2 = GND 2.475 2.500 2.525 FB2 = VCC 1.782 1.800 1.818 BUCK2 Error Comparator Threshold (DC Output Voltage Accuracy) (Note 1) V+ = 4.5V to 28V FB2 = OUT2 0.990 1.000 1.010 V OUT2 Adjust Range 1.0 5.5 V FB2 GND Level Voltage level to enable internal feedback for BUCK2 with VOUT2 = 2.5V 0.05 V FB2 External Feedback Level Voltage level to enable external feedback for BUCK2 with FB2 regulated to 1.0V nominal 0.15 1.90 V FB2 VCC Level Voltage level to enable internal feedback for BUCK2 with VOUT2 = 1.8V 2.10 V GAIN = GND 0 GAIN = REF 1.425 1.500 1.575 GAIN = open 1.900 2.000 2.100 Voltage-Positioning Gain GAIN = VCC 3.800 4.000 4.200 V/V |
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