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MAX1763 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1763 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 16 page 1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS (CLK/SEL = ONB = FB = PGND = GND, ISET = REF, OUT = POUT, VONA = VAIN = VOUT = 3.6V, TA = -40°C to +85°C, unless other- wise noted.) (Note 8) PARAMETER CONDITIONS MIN MAX UNITS DC-DC CONVERTER Input Voltage Range (Note 1) 5.5 V Minimum Startup Voltage (Note 2) ILOAD < 1mA, TA = +25°C 1.1 V Frequency in Startup Mode VOUT = 1.5V 125 1000 kHz Internal Oscillator Frequency CLK/SEL = OUT 0.75 1.25 MHz Oscillator Maximum Duty Cycle (Note 3) 80 91 % External Clock Frequency Range 0.6 1.2 MHz Output Voltage VFB < 0.1V, CLK/SEL = OUT, includes load regulation for 0 < ILX < 1.1A 3.17 3.38 V FB Regulation Voltage Adjustable output, CLK/SEL = OUT, includes load regulation for 0 < ILX < 1.1A 1.215 1.270 V FB Input Current VFB = 1.35V 100 nA Output Voltage Adjust Range 2.5 5.5 V Output Voltage Lockout Threshold (Note 4) Rising edge 2.00 2.30 V ISET Input Leakage Current VISET = 1.25V 50 nA Supply Current in Shutdown V ONB = 3.6V, VONA = 0 10 µA No-Load Supply Current, Low- Power Mode (Note 5) CLK/SEL = GND, AIN = OUT 200 µA Gain Block Supply Current VAIN < (VOUT - 1.4V), gain block enabled 50 µA DC-DC SWITCHES POUT Leakage Current VLX = 0, VOUT = 5.5V 10 µA LX Leakage Current VLX = V ONB = VOUT = 5.5V, VONA = 0 10 µA N-channel 0.13 Switch On-Resistance P-channel 0.25 Ω N-Channel Current Limit 2.0 3.4 A P-Channel Turn-Off Current CLK/SEL = GND 10 240 mA REFERENCE Reference Output Voltage IREF = 0 1.220 1.270 V Reference Load Regulation -1µA < IREF < 50µA 15 mV Reference Supply Rejection 2.5V < VOUT < 5V 5 mV GAIN BLOCK AIN Reference Voltage IAO = 20µA 910 970 mV AIN Input Current VAIN = 1.5V ±30 nA Transconductance VAO = 1V, 10µA < IAO < 100µA 5 16 mS AO Output Low Voltage VAIN = 0.5V, IAO = 100µA 0.4 V AO Output High Leakage VAIN = 1.5V, VAO = 5.5V 1 µA |
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Similar Description - MAX1763 |
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