MAX639, MAX640, MAX653 5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC Converters

The MAX639 MAX640 MAX653 Step-down Switching Regulators provide high efficiency over a wide range of load currents, delivering up to 225mA. A current-limiting pulse-frequency-modulated (PFM) control scheme gives the devices the benefits of pulse-width-modulated (PWM) converters (high efficiency at heavy loads), while using only 10A of supply current (vs. 2mA to 10mA for PWM converters). The result is high efficiency over a wide range of loads.
The MAX639 MAX640 MAX653 input range is 4V to 11.5V, and the devices provide lower preset output voltages of 5V, 3.3V, and 3V, respectively. Or, the output CAN be user-adjusted to any voltage from 1.3V to the input voltage.
The MAX639 MAX640 MAX653 have an internal 1A Power MOSFET Switch making them ideal for minimum-component, low- and medium-power applications. For increased output drive capability, use the MAX649 MAX651 MAX652 Step-down controllers, which drive an external P-channel FET to deliver up to 5W.
By Maxim Integrated Products
MAX653 's PackagesMAX653 's pdf datasheet
MAX653MJA DIP
MAX653C-D
MAX653CPA PDIP
MAX653EPA PDIP
MAX653CSA SOIC
MAX653CSAT SOIC
MAX653CSA-T-58F- SOIC
MAX653ESA SOIC
MAX653ESAT SOIC
MAX653ESA-T SOIC




MAX653 Pinout, Pinouts
MAX653 pinout,Pin out
This is one package pinout of MAX653,If you need more pinouts please download MAX653's pdf datasheet.

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