MAX1771ESA-T Maxim Integrated Products, MAX1771ESA-T Datasheet
MAX1771ESA-T
Specifications of MAX1771ESA-T
Related parts for MAX1771ESA-T
MAX1771ESA-T Summary of contents
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... Input Range o Preset 12V or Adjustable Output Voltage o Current-Limited PFM Control Scheme 300kHz Switching Frequency o Evaluation Kit Available PART MAX1771CPA MAX1771CSA MAX1771C/D MAX1771EPA MAX1771ESA Applications MAX1771MJA * Contact factory for dice specifications. ** Contact factory for availability and processing to MIL-STD-883B. TOP VIEW OUTPUT 12V N Features ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller Q ABSOLUTE MAXIMUM RATINGS Supply Voltage V+ to GND ...............................................................-0.3V, 17V EXT, CS, REF, SHDN GND ...................-0.3V, (V+ + 0.3V) GND to AGND.............................................................0.1V, -0.1V Continuous Power Dissipation (T ...
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Adjustable, High-Efficiency, ELECTRICAL CHARACTERISTICS (continued) ( 0mA LOAD A MIN PARAMETERS SYMBOL FB Input Current I SHDN Input High Voltage V SHDN Input Low Voltage V SHDN Input Current ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 12V OUT IN CIRCUIT OF FIGURE 2a BOOTSTRAPPED MODE 3 ENTIRE CIRCUIT ...
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Adjustable, High-Efficiency, (Circuit of Figure 2a +25°C, unless otherwise noted.) A HEAVY-LOAD SWITCHING WAVEFORMS 2µs/div 900mA 12V IN OUT OUT A: EXT VOLTAGE, 10V/div B: INDUCTOR ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller Q (Circuit of Figure 2a +25°C, unless otherwise noted.) A PIN NAME 1 EXT Gate Drive for External N-Channel Power Transistor 2 V+ Power-Supply Input. Also acts as ...
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Adjustable, High-Efficiency, Detailed Description The MAX1771 is a BiCMOS, step-up, switch-mode power-supply controller that provides a preset 12V out- put, in addition to adjustable-output operation. Its unique control scheme combines the advantages of pulse-frequency modulation (low supply current) ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller 0.1µ REF C3 L1 0.1µF MAX1771 22µH 4 SHDN 1N5817- EXT Si9410DY/ MTD20N03HDL 8 6 AGND CS ...
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Adjustable, High-Efficiency, The control circuitry allows the IC to operate in continu- ous-conduction mode (CCM) while maintaining high efficiency with heavy loads. When the power switch is turned on, it stays on until either 1) the maximum on- ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller Q 3 OUT L = 22µH 3 20mΩ SENSE 2 25mΩ SENSE 2.0 R SENSE 1.5 1.0 R SENSE 0 100mΩ ...
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Adjustable, High-Efficiency, Power Transistor Selection Use an N-channel MOSFET power transistor with the MAX1771. To ensure the external N-channel MOSFET (N-FET) is turned on hard, use logic-level or low-threshold N-FETs when the input drive voltage is less than ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller Q Table 1. Component Suppliers PRODUCTION INDUCTORS Sumida CD54 series CDR125 series Coiltronics Surface Mount CTX20 series Coilcraft DO3316 series DO3340 series Sumida RCH855 series Through Hole RCH110 series SUPPLIER ...
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Adjustable, High-Efficiency 2.2µ 11V 1N5817 20µ CTX20-4 SHDN 3V = OFF MAX1771 EXT Q1** REF 0.1µ GND AGND ...
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Adjustable, High-Efficiency, Low I , Step-Up DC-DC Controller 4.5V TO 15V C1 33µF L1 16V 2 20µH OFF V+ 4 C2* SHDN 1µF ON MAX1771 1 Q1** EXT AGND ...
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Adjustable, High-Efficiency, D03340 220µH–680µ EXT SHDN C5 0.1µ REF 2 MAX1771 AGND GND C6 10µF 100V Figure 7. -48V Input to 5V Output at 300mA, Without a Transformer ...
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... 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. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2002 Maxim Integrated Products OUTPUT ...