MAX618EEE Maxim Integrated Products, MAX618EEE Datasheet
MAX618EEE
Specifications of MAX618EEE
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MAX618EEE Summary of contents
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... Adjustable Output Voltage Up to +28V 93% Efficiency o Wide Input Voltage Range (+3V to +28V 500mA Output Current at +12V o 500µA Quiescent Supply Current o 3µA Shutdown Current o 250kHz Switching Frequency o Small 1W, 16-Pin QSOP Package PART MAX618EEE+ + Denotes a lead(Pb)-free/RoHS-compliant package. Applications 28V 16 GND 15 ...
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PWM, Step-Up DC-DC Converter ABSOLUTE MAXIMUM RATINGS IN to GND ...............................................................-0.3V to +30V LX to GND ..............................................................-0.3V to +30V VL to GND ................................................................-0.3V to +6V SHDN, COMP GND ............................-0.3V to (VL + 0.3V) PGND to GND.....................................................................±0.3V Continuous ...
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PWM, Step-Up DC-DC Converter ELECTRICAL CHARACTERISTICS (V = +6V, PGND = GND 4.7μ PARAMETER SYMBOL Input Voltage V Supply Current, No Load I Supply Current, Full Load Connected to IN Supply Current, ...
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PWM, Step-Up DC-DC Converter (Circuit of Figure +25°C.) A NO-LOAD SUPPLY CURRENT vs. INPUT VOLTAGE 0.65 0.60 0.55 0.50 0.45 0. INPUT VOLTAGE (V) MEDIUM-LOAD SWITCHING WAVEFORMS MAX618 toc07 I ...
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PWM, Step-Up DC-DC Converter PIN NAME GND Ground 12 Drain of internal N-channel switch. Connect the inductor between IN and LX. Shutdown Input. A logic low puts the MAX618 in shutdown ...
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PWM, Step-Up DC-DC Converter ERROR COMPARATOR GND SLOPE COMPENSATION THERMAL SHDN SHUTDOWN SHUTDOWN Figure 2. Functional Diagram the output capacitor. Output current is limited by the 2A MOSFET current limit and the MAX618’s package power-dissipation limit. See the Maximum ...
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PWM, Step-Up DC-DC Converter _______________________________________________________________________________________ 7 ...
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PWM, Step-Up DC-DC Converter VL can be overdriven by an external supply between 2.7V and 5.5V. In systems with +3.3V or +5V logic power supplies available, improve efficiency by power- ing VL and V directly from the logic supply ...
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PWM, Step-Up DC-DC Converter OPEN-DRAIN 100k LOGIC ON/OFF CONTROL Figure 5. Adding On/Off Control to Circuit of Figure shutdown mode (SHDN = 0), the MAX618’s feed- back and control circuit, reference, and internal biasing circuitry ...
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PWM, Step-Up DC-DC Converter Maximum Output Current The MAX618’s 2.2A LX current limit determines the output power that can be supplied for most applica- tions. In some cases, particularly when the input volt- age is low, output power is ...
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PWM, Step-Up DC-DC Converter ______________________________________________________________________________________ 11 ...
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PWM, Step-Up DC-DC Converter 12 ______________________________________________________________________________________ ...
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PWM, Step-Up DC-DC Converter ______________________________________________________________________________________ 13 ...
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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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2009 Maxim Integrated Products ...