The XCL213/214 series is a high speed transient response 1.5A synchronous step-down Micro DC/DC converter with integrated inductor which fits in an extremely small 2.5mm x 3.2mm x 1.0mm USP-9B01 package and needs only two capacitors connected externally to generate a stable power supply.HiSAT-COT, Torex’s Constant ON Time architecture gives the XCL213/214 extremely fast load transient response performance in comparison to standard DC/DC solutions as well as achieving low output voltage ripple.

With the integrated Inductor, this new series is designed to minimise EMC emissions and radiated noise, whilst maximising efficiency.The XCL213/214 utilises a 3MHz switching frequency. The XCL213 series offers PWM control, whereas the XCL214 series applies automatic PWM/PFM switching control, providing fast response, low ripple, low current consumption (25uA  typ.) and high efficiency over the full range of output loads (from light load to heavy load).The operating voltage range is from 2.7V to 5.5V and the output voltage is internally set in a range from 0.8V to 3.6V in increments of 0.05V.

The XCL213/214 series include a 0.3ms (typ.) high speed soft-start function for quick turn-on, a chip enable pin to turn the IC on and off and a CL discharge function to quickly discharge the output capacitor when the IC is turned off. A thermal shutdown circuit is also built in which shuts down the IC when the chip’s temperature reaches 150°C and re-starts it when the temperature s to 120°C (TYP.) or less.Other features include a built-in UVLO (Under Voltage Lock Out) circuit whose threshold is 2.0V (typ). The XCL213/214 will stop operating when the input voltage decreases below this threshold, and will resume normal operation when the input voltage rises above this threshold.The XCL213/214 series is available now with samples and populated EVB ready for use upon request.

For more in depth information about this new micro DC/DC, including a supporting datasheet, please go directly to Torex Semiconductor’s website at:

XCL213 : 
XCL214 :
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