MAX1652, MAX1653, MAX1654, MAX1655 High-Efficiency, PWM, Step-Down DC-DC Controllers In 16-Pin QSOP

The MAX1652 MAX1653 MAX1654 MAX1655 are high-efficiency, pulse-width-modulated (PWM), Step-down DC-DC Controllers in small QSOP packages. The MAX1653 MAX1655 also come in 16-pin narrow SO packages that are pin-compatible upgrades to the popular MAX797. Improvements include higher duty-cycle operation for better dropout, lower quiescent supply currents for better light-load efficiency, and an output voltage down to 1V MAX1655 .
The MAX1652-MAX1655 achieve up to 96% efficiency and deliver up to 10A using a unique Idle Mode synchronous-rectified PWM control scheme. These devices automatically Switch between PWM operation at heavy loads and pulse-frequency-modulated (PFM) operation at light loads to optimize efficiency over the entire output current range. The MAX1653 MAX1655 also feature logic-controlled, forced PWM operation for noise-sensitive applications.
All devices operate with a selectable 150kHz/300kHz switching frequency, which CAN also be synchronized to an external Clock signal. Both external Power Switches are inexpensive N-Channel MOSFETs which provide low resistance while saving space and reducing cost.
The MAX1652 and MAX1654 have an additional feedback pin that permits regulation of a low-cost second output tapped from a transformer winding. The MAX1652 provides an additional positive output. The MAX1654 provides an additional negative output.
The MAX1652-MAX1655 have a 4.5V to 30V input voltage range. The MAX1652 MAX1653 MAX1654 's output range is 2.5V to 5.5V while the MAX1655 's output range extends down to 1V. An evaluation kit (MAX1653EVKit) is available to speed designs.
By Maxim Integrated Products
MAX1652 's PackagesMAX1652 's pdf datasheet
MAX1652EEE QSOP
MAX1652EEET QSOP
MAX1652EEE-T QSOP




MAX1652 Pinout, Pinouts
MAX1652 pinout,Pin out
This is one package pinout of MAX1652,If you need more pinouts please download MAX1652's pdf datasheet.

MAX1652 Application circuits
MAX1652 circuits
This is one application circuit of MAX1652,If you need more circuits,please download MAX1652's pdf datasheet.


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