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MAX776 Datasheet(PDF) 5 Page - Maxim Integrated Products |
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MAX776 Datasheet(HTML) 5 Page - Maxim Integrated Products |
5 / 16 page -5V/-12V/-15V or Adjustable, High-Efficiency, Low IQ Inverting DC-DC Controllers _______________________________________________________________________________________ 5 2.5 1.5 -60 60 SWITCH OFF-TIME vs. TEMPERATURE 2.0 TEMPERATURE (°C) 0 120 V+ = 5V _____________________________Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) 5.0 2.5 100 START-UP VOLTAGE vs. LOAD CURRENT (BOOTSTRAPPED) 3.0 4.5 LOAD CURRENT (mA) 10 1000 3.5 1 4.0 VOUT = -12V VOUT = -15V VOUT = -5V 5.0 2.5 0.1 100 START-UP VOLTAGE vs. LOAD CURRENT (NON-BOOTSTRAPPED) 3.0 4.5 LOAD CURRENT (mA) 10 1000 3.5 1 4.0 VOUT = -24V VOUT = -15V VOUT = -12V VOUT = -5V 2200 800 2 4 10 16 MAX774 MAXIMUM LOAD vs. INPUT VOLTAGE 1200 1000 1800 2000 INPUT VOLTAGE (V) 8 612 14 1600 1400 BOOTSTRAPPED NON-BOOTSTRAPPED VOUT = -5V 20 -60 -40 60 140 EXT RISE AND FALL TIMES vs. TEMPERATURE 40 30 TEMPERATURE (°C) 40 20 0 -20 80 120 100 50 5V RISE 60 80 70 90 100 120 110 130 5V FALL 12V RISE 12V FALL CEXT = 1nF -60 -40 60 140 EXT RISE AND FALL TIMES vs. TEMPERATURE TEMPERATURE (°C) 40 20 0 -20 80 120 100 5V RISE 450 400 500 5V FALL 12V RISE 12V FALL CEXT = 5nF 300 250 350 150 100 200 50 17 15 -60 60 SWITCH ON-TIME vs. TEMPERATURE 16 TEMPERATURE (°C) 0 120 V+ = 5V 8.0 7.8 7.6 7.4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 -60 -40 60 140 SWITCH ON-TIME/OFF-TIME RATIO TEMPERATURE (°C) 40 20 0 -20 80 120 100 V+ = 5V 4.0 0 -60 -40 60 140 SHUTDOWN CURRENT vs. TEMPERATURE 1.0 0.5 2.5 3.5 TEMPERATURE (°C) 40 20 0 -20 80 120 100 2.0 1.5 3.0 V+ = 15V V+ = 8V V+ = 4V |
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