OT1102bh: Low Dropout Linear Regulatorldo2

The OT1102bh is a 150mA CMOS low dropout regulator designed for use in a wide variety of mixed signal device applications.

The base design is implemented with lambda-based sizing and portable layout constructs for maximum ease of process porting. This version is ported to the Austriamicrosystems AMSC35 0.35u process.


  • Input voltage range 2.9V – 4.3V.
  • Output voltage 1.2V – 2.5V.
  • Output short circuit and fold-back protection.
  • Switchable over-temperature protection.
  • Universal design works with a wide variety of pad libraries.
  • Works with OT0102bh voltage and current band gap.
  • External 4.7µF decoupling capacitor.
  • Power down/enable input.
  • Fast response to current steps.
  • Good line and load regulation.
  • -40°C to 120°C temperature operation.
  • Base cell area < 0.1mm2 in 0.35µ CMOS.ldoLayout2vf

Typical Applications

  • Battery to 1.2V, 1.8V, or 2.5V core VDD rails.
  • 3.3V to 1.2V, 1.8V, or 2.5V VDD rails.


  • Flat GDS.
  • LEF.
  • LVS netlist.
  • Integration notes.
  • Production test notes.


  • 4 Weeks lead time for process ports.
  • Available support for manufacturing and characterization.
  • Available translation to your design style.
  • Available on-site design review.
  • Source licensing available.