Description
The CAT6217 is a 150 mA CMOS low dropout regulator that provides fast response time during load current and line voltage changes.
The quick−start feature allows the use of an external bypass capacitor to reduce the overall output noise without affecting the turn−on time of just 150μs.
With zero shutdown current and low ground current of 55μA typical, the CAT6217 is ideal for battery−operated devices with supply voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit disables the output at supply voltages under 2.1 V typical.
The CAT6217 offers 1% initial accuracy and low dropout voltage, 90 mV typical at 150 mA. Stable operation is provided with a 1 μF ceramic capacitor, reducing required board space and component cost.
Other features include output short−circuit current limit and thermal protection.
The device is available in the low profile (1 mm max height) 5−lead TSOT−23 package.

Features
• Guaranteed 150 mA Output Current
• Low Dropout Voltage of 90 mV Typical at 150 mA
• Stable with 1μF Ceramic Output Capacitor
• External 10 nF Bypass Capacitor for Low Noise
• Quick−start Feature
• No−load Ground Current of 55 μA Typical
• Full−load Ground Current of 80 μA Typical
• ±1.0% Initial Accuracy (VOUT ≥ 2.0 V)
• ±2.0% Accuracy Over Temperature (VOUT ≥ 2.0 V)
• “Zero” Current Shutdown Mode
• Current Limit and Under Voltage Lockout
• Thermal Protection
• 5−lead TSOT−23 Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
   Compliant

Applications
• Cellular Phones
• Battery−powered Devices
• Consumer Electronics