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MAX770MJA Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX770MJA Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 20 page 5V/12V/15V or Adjustable, High-Efficiency, Low IQ, Step-Up DC-DC Controllers 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS Supply Voltages V+ to GND.............................................................-0.3V to 17V V+ to SGND.............................................................-0.3V to 7V SGND........................................................-0.3V to (V+ + 0.3V) EXT, CS, REF, LBO, LBI, SHDN, FB.............-0.3V to (V+ + 0.3V) EXTH, EXTL ..................................................-0.3V to (V+ + 0.3V) V5, V12, V15 .............................................................-0.3V to 17V GND to AGND .........................................................0.1V to -0.1V ISGND ..................................................................................50mA Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)....727mW 8-Pin SO (derate 5.88mW/°C above +70°C) ................471mW 8-Pin CERDIP (derate 8.00mW/°C above +70°C) ........640mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C) .............................800mW 14-Pin SO (derate 8.33mW/°C above +70°C) ..............667mW 14-Pin CERDIP (derate 9.09mW/°C above +70°C) ......727mW Operating Temperature Ranges MAX77_C_ _ ........................................................0°C to +70°C MAX77_E_ _......................................................-40°C to +85°C MAX77_MJ_ ...................................................-55°C to +125°C Junction Temperatures MAX77_C_ _/E_ _ ..........................................................+150°C MAX77_MJ_..................................................................+175°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°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. ELECTRICAL CHARACTERISTICS (V+ = 5V, ILOAD = 0mA, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current 85 110 µA Standby Current 2 5 µA 4 Output Voltage (Note 1) V+ = 2.0V to 5.0V, over full load range 4.80 5.0 5.20 V V+ = 2.0V to 12.0V, over full load range 11.52 12.0 12.48 V+ = 2.0V to 15.0V, over full load range 14.40 15.0 15.60 Figure 2a, V+ = 2.7V to 4.5V, ILOAD = 700mA, VOUT = 5V 5 mV/V Figure 2a, V+ = 3V, ILOAD = 30mA to 1A, VOUT = 5V 20 mV/A Maximum Switch On-Time tON(max) 12 16 20 µs Minimum Switch Off-Time tOFF(min) 1.8 2.3 2.8 µs Efficiency 87 % Reference Voltage VREF IREF = 0µA MAX77_C 1.4700 1.5 1.5300 V MAX77_E 1.4625 1.5 1.5375 MAX77_M 1.4550 1.5 1.5450 Output Voltage Line Regulation (Note 2) Output Voltage Load Regulation (Note 2) V+ = 4V, ILOAD = 500mA, VOUT = 5V V+ = 10.0V, SHDN ≥ 1.6V (shutdown) V+ = 16.5V, SHDN ≥ 1.6V (shutdown) V+ = 16.5V, SHDN = 0V (normal operation) Minimum Start-Up Voltage MAX770/MAX771/MAX772 1.8 2.0 V MAX770–772 (internal feedback resistors) 2.0 16.5 MAX770–772C/E (external resistors) 3.0 16.5 MAX770–772MJA (external resistors) 3.1 16.5 MAX773C/E 3.0 16.5 MAX773MJD 3.1 16.5 Input Voltage Range V |
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