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MAX777LESA Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX777LESA Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 12 page Low-Voltage Input, 3V/3.3V/5V/ Adjustable Output, Step-Up DC-DC Converters 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VIN = +2.5V, ILOAD = 0mA, L = 22µH, COUT = 100µF, SHDN and ILIM connected to IN, AGND connected to PGND, TA = TMIN to TMAX, typical values are at TA = +25°C, unless otherwise noted.) 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. Supply Voltage (IN to PGND).......................................0V to 4.5V Output Short-Circuit Duration to PGND, AGND (Note 1)....30sec Voltage Applied to: LX (switch off) .......................................................-0.3V to 4.5V (switch on) ....................................30sec short to IN or OUT OUT, SHDN ...........................................................-0.3V to +7V FB ...........................................................-0.3V to (OUT + 0.3V) AGND to PGND ........................................................-0.3V, +0.3V Reverse Battery Current....................................................900mA Continuous Power Dissipation (TA = +70°C) Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW SO (derate 5.88mW/°C above +70°C) ..........................471mW CERDIP (derate 8.00mW/°C above +70°C) ..................640mW Operating Temperature Ranges: MAX77_LC_A .......................................................0°C to +70°C MAX77_LE_A ....................................................-40°C to +85°C MAX77_LMJA .................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C Note 1: The output may be shorted to ground if the package power dissipation is not exceeded. PARAMETER Output Voltage MAX777L/MAX779L (set to 5V) (Note 6) MIN TYP MAX (Note 4) ILOAD = 100mA UNITS SHDN Input Current MAX77_LM MAX77_LC, MAX77_LE 12 40 Output Voltage Range (MAX779L) 2.5 6.0 µA VIN < SHDN < 5V V 20 35 15 100 4.80 5.00 5.20 nA 0V < SHDN < VIN V MAX777LC/ MAX779LC Maximum Operating Voltage Minimum Start-Up Voltage 1 V 4.5 V Efficiency 82 % No-Load Supply Current 190 310 µA Shutdown Supply Current 20 30 µA CONDITIONS ILOAD = 0mA (switch off) SHDN = 0V MAX777LE/ MAX779LE MAX777LM/ MAX779LM (Notes 2, 3) ILOAD < 10mA, TA = +25°C (Note 2) Output Voltage MAX778L (Note 6) MAX778LE 3.17 3.30 3.43 V MAX778LC SEL = 0V MAX778LM MAX778LE 2.88 3.00 3.12 MAX778LC SEL = OPEN MAX778LM ILOAD ≤ 30mA, 1.1V ≤ VIN ≤ 4.5V or ILOAD ≤ 140mA, 1.8V ≤ VIN ≤ 4.5V ILOAD ≤ 30mA, 1.2V ≤ VIN ≤ 4.5V or ILOAD ≤ 130mA, 1.8V ≤ VIN ≤ 4.5V ILOAD ≤ 25mA, 1.25V ≤ VIN ≤ 4.5V or ILOAD ≤ 120mA, 1.8V ≤ VIN ≤ 4.5V ILOAD ≤ 50mA, 1.1V ≤ VIN ≤ 3.3V or ILOAD ≤ 210mA, 1.8V ≤ VIN ≤ 3.3V ILOAD ≤ 50mA, 1.2V ≤ VIN ≤ 3.3V or ILOAD ≤ 200mA, 1.8V ≤ VIN ≤ 3.3V ILOAD ≤ 50mA, 1.25V ≤ VIN ≤ 3.3V or ILOAD ≤ 180mA, 1.8V ≤ VIN ≤ 3.3V ILOAD ≤ 50mA, 1.1V ≤ VIN ≤ 3V or ILOAD ≤ 210mA, 1.8V ≤ VIN ≤ 3V ILOAD ≤ 50mA, 1.2V ≤ VIN ≤ 3V or ILOAD ≤ 200mA, 1.8V ≤ VIN ≤ 3V ILOAD ≤ 40mA, 1.25V ≤ VIN ≤ 3V or ILOAD ≤ 180mA, 1.8V ≤ VIN ≤ 3V |
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