A High Voltage LDO regulator

LT3061 – 45V VIN, Micropower, Low Noise, 100mA LDO with Output Discharge


  • Input Voltage Range: 1.6V to 45V
  • Output Current: 100mA
  • Output Discharge
  • Quiescent Current: 45μA
  • Dropout Voltage: 250mV
  • Low Noise: 30μVRMS (10Hz to 100kHz)
  • Adjustable Output (VREF = 600mV)
  • Output Tolerance: ±2% Over Load, Line, and Temperature
  • Single Capacitor Soft-Starts Reference and Lowers Output Noise
  • Shutdown Current: < 3μA
  • Reverse Battery Protection
  • Current Limit Foldback and Thermal Limit Protection
  • 8-Lead 2mm × 3mm DFN and MSOP Packages

A High Voltage LDO regulator


The LT®3061 is a micropower, low dropout (LDO) linear regulator that operates over a 1.6V to 45V supply range. The device supplies 100mA of output current with a typical dropout voltage of 250mV. A single external capacitor provides programmable low noise reference performance and output soft-start functionality. The LT3061’s quiescent current is merely 45μA and provides fast transient response with a minimum 3.3μF output capacitor. In shutdown, quiescent current is less than 3μA and the reference soft start capacitor is reset.


For more detail: A High Voltage LDO regulator

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