TI nano power regulator delivers 94.6% peak efficiency in 30-mm2 footprint - Embedded.com

TI nano power regulator delivers 94.6% peak efficiency in 30-mm2 footprint

The SIMPLE SWITCHER regulator from Texas Instruments (TI) is a 12-V, 750-mA DC/DC power regulator that features high performance and nano packaging to drive space-constrained and power dense applications. Packing a number of features into a 2.56-mm2 package, the nano power regulator makes it easier for engineers to design a power supply, and along with TI's WEBENCH online design tool, simplifies and speeds the process.

The 750-mA LMR22007 switching regulator features a low-current mode to maintain efficiency under light-load conditions. Control architecture provides fast transient performance and excellent regulation under varying input and output conditions. The LMR22007 delivers up to 750 mA of continuous load current with the addition of an adjustable input current limit, which protects the source supply during start-up by preventing excessive inrush currents.  A complete 12-V, VIN to VOUT LMR22007 power supply design measures less than 30 mm2 with as few as three external components.

LMR22007 key features and benefits

  • The 750-mA nano regulator operates over a wide 2.7 V to 20 V input voltage range, delivers an output voltage from 0.9 V to 5.5 V and survives VIN transients to 24V. Applications include single to multiple Li-ion cells, USB, 5-VIN and 12-VIN power supplies.
  • Integrated synchronous MOSFET delivers peak efficiency of 94.6 percent.
  • Control architecture requires no loop compensation and provides ultra-fast transient response.
  • 9-pin, 1.6-mm by 1.6-mm by 0.5-mm CSP package features strategic pin placement that eliminates micro vias and requires as little as two layers of printed circuit board.
  • Other features include internal compensation, internal soft start, input under-voltage protection, internal bootstrap capacitor and thermal shutdown.

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