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MAX17014ETM+ Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX17014ETM+ Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 34 page Low-Cost Multiple-Output Power Supply for LCD TVs _______________________________________________________________________________________ 7 ELECTRICAL CHARACTERISTICS (Circuit of Figure 1, VIN = IN2 = 12V, AVDD = OVIN = SUP = 15V, TA = -40°C to +85°C. Typical values are at TA = +25°C, unless oth- erwise noted.) (Note 4) PARAMETER CONDITIONS MIN TYP MAX UNITS GENERAL VIN, IN2 Input Voltage Range 8.0 16.5 V FSEL = VIN 1020 1380 SMPS Operating Frequency FSEL = GND 510 690 kHz VIN Undervoltage Lockout Threshold VIN rising edge, 100mV typical hysteresis 5.75 7.25 V VL REGULATOR VL Output Voltage IVL = 25mA, VFB1 = VFB2 = VFBP = 1.1V, VFBN = 0.4V (all regulators switching) 4.9 5.1 V VL Undervoltage Lockout Threshold VL rising edge, 100mV typical hysteresis 3.5 4.3 V REFERENCE REF Output Voltage No external load 1.235 1.265 V REF Load Regulation 0 < ILOAD < 50μA 10 mV REF Undervoltage Lockout Threshold Rising edge; 20mV typical hysteresis 1.2 V STEP-DOWN REGULATOR OUT Voltage in Fixed Mode FB2 = GND, no load (Note 2) 3.25 3.35 V FB2 Voltage in Adjustable Mode VOUT = 2.5V, no load (Note 2) 1.23 1.27 V FB2 Adjustable-Mode Threshold Voltage Dual-mode comparator 0.10 0.20 V Output Voltage Adjust Range Step-down output 1.5 5.0 V LX2-to-IN2 nMOS Switch On-Resistance 240 m LX2-to-CPGND nMOS Switch On-Resistance 6 23 BST-to-VL pMOS Switch On-Resistance 7 20 LX2 Positive Current Limit 2.50 3.50 A Maximum Duty Factor 70 90 % STEP-UP REGULATOR Output Voltage Range VVIN 20 V Oscillator Maximum Duty Cycle 69 81 % FB1 Regulation Voltage FB1 = COMP, CCOMP = 1nF 1.23 1.27 V LX1 Current Limit VFB1 = 1.1V, duty cycle = 25% 3.2 4.2 A Current-Sense Transresistance 0.16 0.30 V/A LX1 On-Resistance 220 m |
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