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MAX863 Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX863 Datasheet(HTML) 3 Page - Maxim Integrated Products |
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3 / 16 page ![]() Dual, High-Efficiency, PFM, Step-Up DC-DC Controller _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (VDD = +5V, ILOAD = 0mA, TA = 0°C to +85°C, unless otherwise noted.) (Note 6) Note 1: When bootstrapped, an internal low-voltage oscillator drives the EXT1 pin rail-to-rail for low supply voltages. Note 2: For non-bootstrapped operation, VDD > 2.7V is required to allow valid operation of all internal circuitry. Note 3: For adjustable output voltages, see the Set the Output Voltage section. Note 4: Measured with LBI falling. Typical hysteresis is 15mV. Note 5: EXT1 and EXT2 swing from VDD to GND. Note 6: Specifications to -40°C are guaranteed by design and not production tested. VDD = OUT1 (Note 1) 1.6 11 CONDITIONS VDD Input Voltage (Note 2) V 2.8 11 VDD V 1.21 1.285 VFB FB1, FB2 Threshold Voltage 60 mV 85 115 VCS CS1, CS2 Threshold Voltage UNITS MIN TYP MAX SYMBOL PARAMETER FB1 = VDD 3.15 3.45 OUT1 Output Voltage (Note 3) FB1 = GND V 4.8 5.2 VOUT1 SHDN1 = SHDN2 = VDD, measured from VDD 85 Quiescent Current SHDN1 = VDD, SHDN2 = GND, measured from VDD µA IDD SHDN1 = SHDN2 = GND µA 1 IDD, SHDN Shutdown Current __________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) 0.01 0.1 1 10 100 1000 EFFICIENCY vs. OUTPUT CURRENT (VOUT1 = 3.3V, BOOTSTRAPPED) OUTPUT CURRENT (mA) B C A 10 0 30 20 50 40 70 60 90 80 100 VOUT1 = 3.3V A: VIN = 1.5V B: VIN = 2.4V C: VIN = 2.7V 0.01 0.1 10 0 30 20 50 40 70 60 90 80 100 1 10 100 1000 EFFICIENCY vs. OUTPUT CURRENT (VOUT1 = 5.0V, BOOTSTRAPPED) OUTPUT CURRENT (mA) VOUT1 = 5.0V A: VIN = 1.5V B: VIN = 2.4V C: VIN = 2.7V D: VIN = 3.3V E: VIN = 3.6V F: VIN = 4.0V B C A D E F 0.01 0.1 0 10 20 30 40 50 60 70 80 90 100 1 10 100 1000 EFFICIENCY vs. OUTPUT CURRENT (VOUT1 = 5.0V, NON-BOOTSTRAPPED) OUTPUT CURRENT (mA) VOUT1 = 5.0V A: VIN = 2.7V B: VIN = 3.3V C: VIN = 3.6V D: VIN = 4.0V A B C D |
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