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MAX1920 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1920 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 9 page IN, FB, SHDN to AGND . . . . . . . . . . . . . . . . . . . . .-0.3V to +6V OUT to AGND, LX to PGND . . . . . . . . . . . .-0.3V to (IN + 0.3V) AGND to PGND . . . . . . . . . . . . . . . . . . . . . . . . . .-0.3V to +0.3V OUT Short Circuit to GND . . . . . . . . . . . . . . . . . . . . . . . . . . .10s Continuous Power Dissipation (TA = +70°C) 6-Pin SOT23-6 (derate 8.7mW/°C above +70°C) . . . .695mW Operating Temperature Range . . . . . . . . . . . . . .-40°C to +85°C Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C Storage Temperature . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Lead Temperature (soldering 10s) . . . . . . . . . . . . . . . . .+300°C Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS 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. ELECTRICAL CHARACTERISTICS (VIN = 3.6V, SHDN = IN, TA = 0°C to +85°C. Typical parameters are at TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS I(LX) < 400mA 2.5 5.5 Input Voltage Range VIN I(LX) < 200mA (MAX1921EUT15, MAX1921EUT18) 2.0 2.5 V Startup Voltage 2.0 V VIN rising 1.85 1.95 UVLO Threshold UVLO VIN falling 1.50 1.65 V UVLO Hysteresis 200 mV Quiescent Supply Current IIN No switching, no load 50 70 µA Quiescent Supply Current Dropout IIN SHDN = IN, OUT/FB = 0 220 300 µA Shutdown Supply Current ISHDN SHDN = GND 0.1 4.0 µA IOUT = 0, TA = +25°C -1.5 +1.5 IOUT = 0 to 400mA, TA = -40°C to +85°C -3 +3 Output Voltage Accuracy (MAX1921) IOUT = 0 to 200mA, TA = -40°C to +85°C -3 +3 % SHDN = 0 1 OUT BIAS Current IOUT OUT at regulation voltage 8 16 µA Output Voltage Range (MAX1920) Figure 4, IN = 4.5V 1.25 4.00 V TA= 25°C 1.231 1.25 1.269 1.220 1.25 1.280 FB Feedback Threshold (MAX1920) VFB TA = -40°C to +85°C 1.210 1.280 V FB Feedback Hysteresis (MAX1920) VHYS 5mV FB Bias Current (MAX1920) IFB FB = 1.5V 0.01 0.20 µA Load Regulation IOUT = 0 to 400mA 0.005 %/mA Line Regulation VIN = 2.5V to 5.5V 0.2 %/V SHDN Input Voltage High VIH 1.6 V SHDN Input Voltage Low VIL 0.4 V SHDN Leakage Current ISHDN SHDN = GND or IN 0.001 1.000 µA High-Side Current Limit ILIMP 525 730 950 mA |
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Similar Description - MAX1920 |
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