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MAX1793 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1793 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 11 page Low-Dropout, Low IQ, 1A Linear Regulator 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = VOUT(NOM) + 0.5V or VIN = 2.5V (whichever is greater), SHDN = IN, TA = +0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) 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. IN, SHDN, RST to GND ............................................-0.3V to +6V OUT, SET to GND ........................................-0.3V to (VIN + 0.3V) Output Short-Circuit Duration ............................................Infinite Continuous Power Dissipation (TA = +70°C) TSSOP-EP (derate 19mW/°C above +70°C) .....................1.5W Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C Soldering Temperature (reflow) Lead(Pb)- Free Packages..............................................+260°C Packages Containing Lead(Pb)....................................+240°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage VIN 2.5 5.5 V Input Undervoltage Lockout VIN 2.0 2.3 V Preset VOUT ≥ 2.5V -1 +1 TA = +85 °C, IOUT = 250mA Preset VOUT < 2.5V -1.5 +1.5 TA = 0 °C to +85°C, IOUT = 250mA -2 +2 Output Voltage Accuracy (Preset Mode, SET = GND) TA = 0 °C to +85°C, IOUT = 1mA to 1A, VIN > VOUT + 0.5V -3 +3 % TA = +85 °C, IOUT = 250mA, VIN = 3V 1.229 1.250 1.271 TA = 0 °C to +85°C, IOUT = 250mA, VIN = 3V 1.219 1.281 SET Voltage Threshold (For Adjustable Output) TA = 0 °C to +85°C, IOUT = 1mA to 1A, VIN = 3V 1.212 1.288 V Adjustable Output Voltage Range 1.25 5 V Maximum Output Current IOUT Continuous, VIN ≥ 3V 1 ARMS Short-Circuit Current Limit ILIM VOUT = 0V, VIN ≥ 3V 1.1 1.8 3.3 A In-Regulation Current Limit VOUT within 4% of nominal output voltage, VIN = 5.5V 2.8 A SET Pin Dual Mode Threshold 50 150 mV SET Input Bias Current ISET VSET = +1.25V ±100 nA Ground Current IGND IOUT = 100µA 125 200 µA MAX1793-33, -50 210 350 Dropout Voltage (Note 1) VIN - VOUT IOUT = 1A, SET = GND MAX1793-25 270 450 mV Line Regulation ∆VLNR VIN from (VOUT + 0.1V) to +5.5V, IOUT = 5mA, SET = GND -0.15 0 +0.15 %/V Load Regulation ∆VLDR IOUT = 100µA to 1A 0.7 % Output Voltage Noise 10Hz to 1MHz, COUT = 6.8µF (ESR < 0.1 Ω) 115 µVRMS Shutdown Supply Current IOFF SHDN = GND, VIN = +5.5V 0.1 16 µA Output Pulldown Resistance in Shutdown SHDN = GND 5 k Ω |
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