MAX639CSA+ Maxim, MAX639CSA+ Datasheet
MAX639CSA+
Specifications of MAX639CSA+
Related parts for MAX639CSA+
MAX639CSA+ Summary of contents
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... LBO DETECTOR INPUT VFB GND ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. , Step-Down DC-DC Converters Q ____________________________Features ♦ High Efficiency for a Wide Range of Load Currents ♦ 10µA Quiescent Current ♦ ...
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... Note 1: Peak inductor current must be limited to 600mA by using an inductor of 100µH or greater. 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 ...
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High-Efficiency, Low I ELECTRICAL CHARACTERISTICS (continued) ( for the MAX639 for the MAX640/MAX653, I unless otherwise noted.) PARAMETER Switch On-Resistance ...
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... L = 220µ (V) 4 _______________________________________________________________________________________ = +25°C, unless otherwise noted.) A EFFICIENCY vs. INPUT VOLTAGE 100 I = 100mA OUT MAX639 95 90 MAX640 85 MAX653 (V) MAXIMUM OUTPUT CURRENT vs. INPUT VOLTAGE 470µH 65 MAX639 55 MAX640 45 MAX653 (V) 150 I = 25mA OUT 125 100 470µ EFFICIENCY vs. INPUT VOLTAGE 100 L = 470µH ...
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High-Efficiency, Low I _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 3, internal feedback 100µH, T MAX639 START-UP TIME vs. OUTPUT CURRENT 12 MEASURED FROM THE RISING EDGE SHDN 5V). OUT 10 ...
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High-Efficiency, Low I , Step-Down DC-DC Converters Q _____________________________Typical Operating Characteristics (continued) (Circuit of Figure 3, internal feedback 100µH, T MAX653 LOAD-TRANSIENT RESPONSE 1ms/div A: I 0mA TO 100mA, 50mA/div LOAD 100mV/div, AC COUPLED ...
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High-Efficiency, Low I ______________________________________________________________Pin Description PIN NAME Sense Input for regulated-output operation. Internally connected to an on-chip voltage divider and to 1 VOUT the variable duty-cycle, on-demand oscillator. It must be connected to the external regulated output. Low-Battery Output. ...
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High-Efficiency, Low I , Step-Down DC-DC Converters Q Figure 2 shows what happens to the ideal circuit of Figure 1 if the switch turns on with a 66% duty cycle and The inductor current ...
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... PART NUMBER SE014 SE024 Collmer Semiconductor 14368 Proton Road Dallas, TX 75244 (214) 233-1589 . NOTE: This list does not constitute an endorsement by Maxim Integrated Products and is not intended comprehensive list of all manufacturers of these components. INDUCTORS — THROUGH HOLE SIZE VALUE I MAX (inches) (µH) (A) 0 ...
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... For low-power circuits with peak currents less than 100mA, signal diodes such as the 1N4148 perform well. The 1N5817 diode works well for high- power circuits, or for maximum efficiency at low power. 1N5817 equivalent diodes are also available in surface- mount packages (Table 1). Although the 1N4001 and ...
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... OUT Layout Figure 8. Efficiency of Figure 6 Circuit -3.3V (MAX640), or -3V (MAX653). Avoid exceeding the maximum differential voltage of 11.5V from Other negative voltages can be generated by placing a voltage divider across C point to VFB in the same manner as the normal step- down configuration. Two AA Batteries to 5V, 3.3V ...
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High-Efficiency, Low I , Step-Down DC-DC Converters Q _Ordering Information (continued) PART TEMP RANGE MAX640CPA 0°C to +70°C MAX640CSA 0°C to +70°C MAX640C/D 0°C to +70°C MAX640EPA -40°C to +85°C MAX640ESA -40°C to +85°C MAX640MJA -55°C to +125°C MAX653CPA ...
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... A1 FRONT VIEW Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 13 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...