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