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MAX1935ETA Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1935ETA Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 10 page 500mA, Low-Voltage Linear Regulator in Tiny QFN 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = VOUT(SETPOINT) + 500mV or VIN = 2.25V whichever is greater, SET = GND, 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, POK, SET to GND ...................................-0.3V to +6V OUT to GND ................................................-0.3V to (VIN + 0.3V) Output Short-Circuit Duration.....................................Continuous Continuous Power Dissipation (TA = +70°C) 8-Pin Thin QFN (derate 24.4mW/°C above +70°C) .......1.95W Operating Temperature .......................................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Input Voltage VIN 2.25 5.50 V Input Undervoltage Lockout VUVLO Rising, 40mV hysteresis 1.85 2 2.15 V TA = +25 °C, IOUT = 100mA -1.5 +1.5 TA = +25 °C, IOUT = 1mA to 500mA -2.5 +2.5 Output Voltage Accuracy (Preset Mode) VOUT TA = 0 °C to +85°C, IOUT = 1mA to 500mA, VIN > VOUT + 0.5V -3 +3 % Adjustable Output Voltage 0.8 4.5 V TA = +25 °C, IOUT = 100mA 788 812 TA = +25 °C, IOUT = 1mA to 500mA 780 820 SET Voltage Threshold (Adjustable Mode) VSET TA = 0 °C to +85°C, IOUT = 1mA to 500mA, VIN > VOUT + 0.5V 774 800 826 mV Maximum Output Current IOUT 500 mARMS Short-Circuit Current Limit ILIM VOUT = 0V 600 1400 2300 mA SET Dual Mode™ Threshold 35 80 125 mV SET Input Bias Current ISET VSET = 0.8V -100 +100 nA IOUT = 1mA 210 600 Ground-Pin Current IQ IOUT = 500mA 575 µA VOUT = 2.25V 259 400 VOUT = 2.8V 201 350 Dropout Voltage (Note 1) IOUT = 500mA VOUT = 4V 147 275 mV Line Regulation ∆VLNR VIN from (VOUT + 100mV) to 5.5V, ILOAD = 5mA 0 0.125 %/V Load Regulation ∆VLDR IOUT = 1mA to 500mA 15.5 35 ppm/mA Output Voltage Noise 10Hz to 1MHz, COUT = 10µF (ESR < 0.1 Ω) 300 µVRMS SHUTDOWN Shutdown Supply Current IOFF SHDN = GND, VIN = 5.5V 0.02 5 µA VIH 1.6 SHDN Input Threshold VIL 0.6 V SHDN Input Bias Current ISHDN SHDN = GND or IN 10 100 nA Startup Time tSTART COUT = 10µF, time from SHDN high to POK high40 µs Dual Mode is a trademark of Maxim Integrated Products, Inc. |
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