200mA High Speed LDO Voltage Regulator with Inrush Current Prevention

Date
05/17/2012

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The new XC6233 Series of voltage regulators from Torex Semiconductor offer fast load transient response performance, PSRR is 75dB @ 1kHz, as well as low quiescent current performance, only 45μA in operation. These fast, low dropout voltage regulators provide a highly stable, low noise supply that meets the demands of most battery-driven circuits. Output voltage can be factory set anywhere from 1.2V to 3.6V in 50mV steps, and the operating voltage range is from 1.7V to 5.5V. The LDO is also compatible with low ESR ceramic capacitors, which gives added output stability. The new series also offers low dropout voltage - typically 240mV with a 200mA load (VOUT=3.0V). An over current protection circuit and short circuit protection are also built in. The over current protection circuit will operate when the output current reaches its limit current level. Dedicated In-rush current protection is also included to help manage the start-up phase. The CE (chip enable) function enables design engineers to turn off the output, putting the device into standby mode, thereby greatly reducing power consumption. In addition, the XC6233 features an automatic CL discharge function which discharges the electric charge at the CL capacitor when the IC is put into standby, ensuring that the VOUT pin drops down to ground quickly. Available in the ultra small USP-4 package (1.2mm x 1.6mm x 0.6mm), as well as in standard SSOT-24 and SOT-25 packages, more in depth information about the XC6233 series, including a supporting datasheet, can be found directly on Torex Semiconductor's website at: www.torex-europe.com/products/range/388

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