ADP3301AR-3 Description

The ADP3301 is a precision low dropout anyCAPTM* voltage regulator from the ADP330x series. The ADP3301 differs from traditional LDOs thanks to its original architecture, improved process, and new packaging. A noninverting wideband driver and a stage that enables the use of an internal "pole splitting" capacitor are part of its patented design, which enables it to stabilize the feedback loop using a single output capacitor as small as 0.47 F. No matter the ESR (Equivalent Serial Resistance) value of the capacitor, including ceramic types (MLCC) for applications with limited space, this device is stable with them. Exceptional precision of 0.8% at room temperature and 1.4% overall accuracy over temperature, line, and load limitations are achieved by the ADP3301.

ADP3301AR-3 Features

• Ultralow Dropout Voltage: 100 mV Typical @ 100 mA

• Requires Only CO = 0.47 mF for Stability

• anyCAP?* = Stable with All Types of Capacitors

• Current and Thermal Limiting

• Low Noise

• Dropout Detector

• Low Shutdown Current: 1 mA

• Several Fixed Voltage Options

• 3.0 V to 12 V Supply Range

• –208C to +858C Ambient Temperature Range

• Thermally Enhanced SO-8 Package

• Excellent Line and Load Regulations

ADP3301AR-3 Applications

• Cellular Telephones

• Notebook, Palmtop Computers

• Battery Powered Systems

• Portable Instruments

• Post Regulator for Switching Supplies

• Bar Code Scanners