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The RT9072A/B is a high voltage (80V operation), low quiescent current, low dropout linear regulator. The device supplies 20mA output current with a maximum dropout voltage of 230mV. Its low quiescent and shutdown currents (23μA operating and 3μA shutdown) are ideal for use in battery-powered and/or high voltage systems. Ground current is well-controlled in all conditions, including dropout. </p>The RT9072A/B operates with any reasonable output capacitors including 1μF low-ESR ceramic types. It features excellent line and load transient responses. Internal protection circuitry includes reverse-battery protection, current limiting, thermal shutdown, and reverse current protection. Output voltage accuracy is ±3% over the entire line, load, and temperature range. </p>The RT9072A/B has an adjustable output voltage (1.25V to 60V). It is available in the SOT-23-5 package.</p>
RT9072A/RT9072B Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Wide Input Voltage Range: 4.5V to 80V </li><li>Low Quiescent Current : 23μA Operating and 3μA Shutdown </li><li>Low Dropout Voltage : 180mV (typical) at 20mA </li><li>Adjustable (1.25V to 60V) Output Voltage </li><li>±2% Initial Output Tolerance </li><li>±3% Output Tolerance over Line, Load, Temperature Range </li><li>Stable with 1μF Output Capacitor </li><li>Stable with Aluminum, Tantalum or Ceramic Capacitors </li><li>No Reverse-Current Protection Diode Needed </li><li>-80V Reverse-Battery Protection </li><li>Internal Current Limit </li><li>Internal Thermal Shutdown Protection </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Low Current, High Voltage Regulators </li><li>Battery Powered Applications </li><li>Telecom and Datacom Applications </li><li>Automotive Applications </li></ul></div>
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