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MAX1651ESA Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1651ESA Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 12 page 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (V+ = 5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL MIN TYP MAX UNITS CONDITIONS 3V ≤ V+ ≤ 16V CS Input Current ±1 µA CEXT = 0.001µF, V+ = 12V EXT Rise Time 25 ns CEXT = 0.001µF, V+ = 12V EXT Fall Time 25 ns Current-Limit Trip Level (V+ to CS) mV VCS 3V ≤ V+ ≤ 16V 80 110 140 tON tON + tOFF x 100% Maximum Duty Cycle 95 96.5 % 80 66 SUPPLY CURRENT vs. TEMPERATURE 68 78 76 74 -60 -20 60 140 TEMPERATURE (°C) 20 100 -40 0 80 40 120 72 70 V+ = 10V V+ = 16V V+ = 4V 4.0 0 SHUTDOWN CURRENT vs. TEMPERATURE 0.5 3.5 3.0 2.5 -60 -20 60 140 TEMPERATURE (°C) 20 100 -40 0 80 40 120 2.0 1.5 V+ = 8V V+ = 16V V+ = 4V 1.0 V+ = 12V Switch Maximum On-Time 24 32 40 µs tON (max) V+ = 12V Switch Minimum Off-Time 0.8 1.1 1.8 µs tOFF (min) -60 -20 60 140 EXT RISE AND FALL TIMES vs. TEMPERATURE (1nF) TEMPERATURE (°C) 20 100 -40 0 80 40 120 60 55 50 45 40 35 30 25 20 15 V+ = 15V, tFALL V+ = 15V, tRISE V+ = 5V, tFALL V+ = 5V, tRISE CEXT = 1nF 1 10 10k LOAD CURRENT (mA) 100 90 80 70 60 50 40 100 1k 0.1 EFFICIENCY vs. LOAD CURRENT (VOUT = 5V) VOUT = 5V CIRCUIT OF FIGURE 1 TOP TO BOTTOM: VIN = 6V VIN = 8V VIN = 10V VIN = 12V VIN = 15V __________________________________________Typical Operating Characteristics (TA = +25°C, unless otherwise noted.) 40 -60 -20 60 140 EXT RISE AND FALL TIMES vs. TEMPERATURE (5nF) 80 TEMPERATURE (°C) 20 100 -40 0 80 40 120 60 100 140 120 160 200 180 240 220 V+ = 15V, tFALL V+ = 15V, tRISE V+ = 5V, tFALL V+ = 5V, tRISE CEXT = 5nF 1 10 10k LOAD CURRENT (mA) 100 90 80 70 60 50 40 100 1k 0.1 EFFICIENCY vs. LOAD CURRENT (VOUT = 3.3V) VOUT = 3.3V CIRCUIT OF FIGURE 1 TOP TO BOTTOM: VIN = 4.3V VIN = 5V VIN = 8V VIN = 10V VIN = 12V VIN = 15V |
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