ADP3301

a High Accuracy anyCAP™* 100 mA Low Dropout Linear Regulator ADP3301 FUNCTIONAL BLOCK DIAGRAM ADP3301 OUT CC R1 IN THERMAL PROTECTION Q2 SD BANDGAP REF GND DRIVER Q1 FEATURES High Accuracy (Over Line and Load Regulations at +25؇C): ؎ 0.8% Ultralow Dropout Voltage: 100 mV Typical @ 100 mA Requires Only CO = 0.47 ␮ F for Stability anyCAP™* = Stable with All Types of Capacitors Current and Thermal Limiting Low Noise Dropout Detector Low Shutdown Current: 1 ␮A Several Fixed Voltage Options 3.0 V to 12 V Supply Range –20؇ C to +85؇ C Ambient Temperature Range Thermally Enhanced SO-8 Package Excellent Line and Load Regulations APPLICATIONS Cellular Telephones Notebook, Palmtop Computers Battery Powered Systems Portable Instruments Post Regulator for Switching Supplies Bar Code Scanners GENERAL DESCRIPTION ERR Gm R2 The ADP3301 is a member of the ADP330x family of precision low dropout anyCAP™* voltage regulators. The ADP3301 stands out from the conventional LDOs with a novel architecture, an enhanced process and a new package. Its patented design includes a noninverting wideband driver and a stage that permits the use of an internal “pole splitting” capacitor to stabilize the feedback loop with a single output capacitor as small as 0.47 µF. This device is stable with any type of capacitor regardless of its ESR (Equivalent Serial Resistance) value, including ceramic types (MLCC) for space restricted applications. The ADP3301 achieves exceptional accuracy of ± 0.8% at room tempe...