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The RT2519 is a high performance positive low dropout (LDO) regulator designed for applications requiring very low dropout voltage and ultra high Power Supply Ripple Rejection (PSRR) at up to 1A. The input voltage range is from 2.2V to 6V and the output voltage is programmable as low as 0.8V. A P-MOSFET switch provides excellent transient response with just a 4.7μF ceramic output capacitor. The external enable control effectively reduces power dissipation while shutdown and further output noise immunity is achieved through bypass capacitor on NR pin. Additionally, the RT2519 features a precise 3% output regulation over line, load, and temperature variations. The device is available in the VDFN-8AL 3x3 package and is specified from -40°C to 125°C.
RT2519 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Very Low Dropout : 170mV Typical at 1A </li><li>Ultra High PSRR : 63dB @ 1kHz, 38dB @ 1MHz </li><li>Input Voltage Range : 2.2V to 6V </li><li>Adjustable Output Voltage : 0.8V to 5.5V </li><li>-40°C to 125°C Operating Junction Temperature Range </li><li>Excellent Noise Immunity </li><li>Fast Response Over Load and Line Transient </li><li>Stable with a 4.7μF Output Ceramic Capacitor </li><li>Accurate Output Voltage 3% Over Load, Line, Process, and Temperature Variations </li><li>Enable Control </li><li>Over-Current Protection </li><li>Over-Temperature Protection </li></ul></div>
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RT2519 Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Telecom/Networking Cards </li><li>Motherboards/Peripheral Cards </li><li>Industrial Applications </li><li>Wireless Infrastructures </li><li>Set-Top Boxes </li><li>Medical Equipments </li><li>Notebook Computers </li><li>Battery Powered Systems </li></ul></div>
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