LT3050MPMSE

FEATURES n n n n n n n n n n n n n n n LT3050 100mA, Low Noise Linear Regulator With Precision Current Limit And Diagnostic Functions DESCRIPTION The LT®3050 is a micro-power, low noise, low dropout voltage (LDO) linear regulator. The device supplies 100mA of output current with a dropout voltage of 340mV. A 10nF bypass capacitor reduces output noise to 30μVRMS in a 10Hz to 100kHz bandwidth and soft-starts the reference. The LT3050’s ±45V input voltage rating combined with its precision current limit and diagnostic functions make the IC an ideal choice for robust, high reliability applications. A single resistor programs the LT3050’s current limit, accurate to ±5% over a wide input voltage and temperature range. A single resistor programs the LT3050’s minimum output current monitor, useful for detecting open-circuit conditions. The current monitor function sources a current equal to 1/100th of output current. A logic FAULT pin asserts low if the LT3050 is in current limit, operating below its minimum output current (open-circuit) or is in thermal shutdown. The LT3050 optimizes stability and transient response with low ESR ceramic capacitors, requiring a minimum of 2.2μF. The LT3050 is available as an adjustable device with an output voltage range down to the 0.6V reference. The LT3050 is available in the thermally-enhanced 12-Lead 3mm × 2mm DFN and MSOP packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Output Current: 100mA Dropout Voltage: 340mV Input Voltage Range: 1.6V to 45V Programmable Precision Current Limit: ±5% Programmable Minimum IOUT Monitor Output Current Monitor: 1/100th of IOUT Fault Indicator: Current Limit, Minimum IOUT or Thermal Limit Low Noise: 30μVRMS (10Hz to 100kHz) Adjustable Output (VREF = VOUT(MIN) = 0.6V) Output Tolerance: ±2% Over Line, Load and Temperature Stable with Low ESR, Ceramic Output Capacitors (2.2μF minimum) Shutdown Current: