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MAX1649 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1649 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 12 page 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (V+ = 5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°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. PARAMETER SYMBOL MIN TYP MAX UNITS 1.4625 1.5 1.5375 FB Trip Point 1.470 1.5 1.530 V I+ 15 FB Input Current IFB ±50 nA ±70 Output Voltage VOUT 4.80 5.0 5.20 V Supply Current V+ Input Voltage Range V+ 3.0 16 V 78 100 µA 2 3.17 3.3 3.43 Reference Voltage VREF 1.470 1.5 1.530 V 1.4625 1.5 1.5375 REF Load Regulation mV 410 CONDITIONS MAX1649E, MAX1651E MAX1649, V+ = 5.5V to 16V MAX1649C, MAX1651C V+ = 10V, SHDN ≥ 1.6V (shutdown) MAX1649C, MAX1651C MAX1649C, MAX1651C, IREF = 0 μA MAX1649E, MAX1651E MAX1649E, MAX1651E, IREF = 0 μA VOUT < V+ V+ = 16V, SHDN ≤ 0.4V (operating, switch off) V+ = 16V, SHDN ≥ 1.6V (shutdown) Supply Voltage, V+ to GND.......................................-0.3V, +17V REF, SHDN, FB, CS, EXT, OUT .......................-0.3V, (V+ + 0.3V) 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 Operating Temperature Ranges MAX1649C_A, MAX1651C_A ..............................0°C to +70°C MAX1649E_A, MAX1651E_A ............................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C 0µA ≤ IREF ≤ 100µA, sourcing only 3V ≤ V+ ≤ 16V REF Line Regulation 40 100 µV/V 2.6 mV/V 1.7 Output Voltage Line Regulation Circuit of Figure 1 MAX1649, 5.5V ≤ V+ ≤ 16V, ILOAD = 1A MAX1651, 3.6V ≤ V+ ≤ 16V, ILOAD = 1A -47 mV/A MAX1649, 0A ≤ ILOAD ≤ 1.5A, VIN = 10V MAX1651, 0A ≤ ILOAD ≤ 1.5A, VIN = 5V -45 Output Voltage Load Regulation Circuit of Figure 1 90 % MAX1649, V+ = 10V, ILOAD = 1A MAX1651, V+ = 5V, ILOAD = 1A 90 Efficiency Circuit of Figure 1 SHDN Input Current V+ = 16V, SHDN = 0V or V+ 1 µA SHDN Input Voltage High VIH 3V ≤ V+ ≤ 16V 1.6 V SHDN Input Voltage Low VIL 3V ≤ V+ ≤ 16V 0.4 V MAX1651, V+ = 3.6V to 16V |
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Similar Description - MAX1649 |
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