MAX640C, MAX639-06, MAX652, MAX639-14, MAX639E, MAX640ESA, MAX639-1, MAX653CSA, MAX639-3, MAX640, MAX639-05, MAX651, MAX639-13, MAX639CSA, MAX640EPA, MAX639-09, MAX653CPA, MAX639-2, MAX639MJA, MAX639, MAX649, MAX639-12, MAX653MJA, MAX639CPA, MAX640CSA, MA
Description ____________________________Features MAX639/MAX640/MAX653 The MAX639/MAX640/MAX653 step-down switching High Efficiency for a Wide Range of Load Currents regulators provide high efficiency over a wide range of load currents, delivering up to 225mA. A current-limiting 10µA Quiescent Current pulse-frequency-modulated (PFM) control scheme gives Output Currents Up to 225mA the devices the benefits of pulse-width-modulated (PWM) converters (high efficiency at heavy loads), while Preset or Adjustable Output Voltage: using only 10µA of supply current (vs. 2mA to 10mA for 5.0V (MAX639) PWM converters). The result is high efficiency over a 3.3V (MAX640) wide range of loads. 3.0V (MAX653) The MAX639/MAX640/MAX653 input range is 4V to Low-Battery Detection Comparator 11.5V, and the devices provide lower preset output volt- ages of 5V, 3.3V, and 3V, respectively. Or, the output Current-Limiting PFM Control Scheme can be user-adjusted to any voltage from 1.3V to the input voltage. The MAX639/MAX640/
Other Descriptions
| MAX639-4 Product Brief | MAX639-4 Xref | MAX639-4 Fiche technique | MAX639-4 示意圖 |
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