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DC/DC CONVERTER


Category: InstaCell™

The Ridgetop DC-DC switching converter/power supply design meets demanding requirements for size, efficiency, and voltage range, and greatly exceeds the performance of similar commercial products.

Description

The Ridgetop DC-DC switching converter/power supply design meets demanding requirements for size, efficiency, and voltage range and greatly exceeds the performanceof similar commercial products.
Combined with modern CMOS processing technology, ultra small form factors can now be achieved, while maintaining high efficiency by use of small-area switching transistors. Built-in battery monitoring features allow the equipment in which it is deployed to determine the strength of the battery and predict when wear-out might occur. Using an on-chip digital-to-analog converter (DAC), we can take in a digital word and compare this voltage with the output voltage. Then we can modulate the output pass transistor that is used to set the output voltage. In this way, we can derive virtually any output voltage within the output range.

Applications

  • Cell phones
  • Telecommunications
  • Portable field equipment
  • Health care equipment
  • Structural health monitoring
  • Unmanned aerial vehicles (UAVs)
  • Energy harvesting technologies

Converter block diagram

Features & Benefits

Ultra-High Efficiency DC-DC Switching Converter Circuit

  • Wide range of DC input levels supported: 1.5 to 15 V
  • User-selectable regulated output voltage range of 2 to 6 V
  • Advanced, reconfigurable, 99% efficiency low-power supply
  • For use in many portable applications requiring long battery life
  • Field-programmable inductorless DC/DC design
  • Initial design for XFAB XC06 0.6 µm – available in other processes
  • Switched-capacitor converter serves applications below 200 mA of current

 

Specifications

SPECIFICATION RIDGETOP DESIGN 
 Input voltage range 1.5 to 15 V 
 Output voltage  2 to 6 V range
 Output current  10 mA
 Output voltage ripple  <30 mV with 1 F cap
 Efficiency  99%, subject to input conditions
 Selection method  Digitally selectable
 Field-configurable?  Yes
 Single-package solution?  Yes
 Monitor features  6-bit digital battery voltage monitor