Low Dropout Linear Regulator

Overview

Key Features

• Input voltage range 3.0V – 5.5V.
• Output voltage 1.8V ±5%.
• Output fold back short circuit protection.
• Over-temperature protection.
• Works with straight-through IO pads.
• External 4.7µF decoupling capacitor.
• Power down/enable input.
• Fast response to current steps.
• <1% line and load regulation.
• Can be back powered.
• PSRR 70dB @ 1MHz.
• -40°C to 120°C temperature operation.
• Base cell area 0.03mm2 in 0.18µ CMOS.

Block Diagram

Applications

• LiFe Battery to 1.8V core voltage regulator.
• 3.3V or 5V power to 1.8V core voltage regulator.

Deliverables

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

Technical Specifications