SI9183

Si9183 Vishay Siliconix High-Performance, Size Saving 150-mA CMOS LDO Regulator FEATURES D D D D D D D D D Low 135-mV Dropout at 150-mA Load Guaranteed 150-mA Output Current 300-mA Peak Output Current Capability Uses Low ESR Ceramic Output Capacitor Fast Load And Line Transient Response Low Output Noise 1-mA Maximum Shutdown Current Built-in Short Circuit And Thermal Protection Fixed 1.5-V, 1.8-V, 2.0-V, 2.5-V, 2.7-V, 2.8-V, 2.85-V, 3.0-V, 3.3-V, 3.6-V, 5.0-V or Adjustable Output Voltage Options (Version B) D Thin SOT-23 5-Pin Package APPLICATIONS D D D D D D Battery Powered Portable Systems Cellular Phones PDAs, Palmtops Pagers Post Regulators for Multi-Output Converters Notebook Computers DESCRIPTION The Si9183 is a high performance yet size saving 150-mA CMOS LDO (low dropout) voltage regulator. Its ultra low ground current and dropout voltage prolong battery life in portable electronics. The device provides LINE/LOAD transient response and ripple rejection superior to that of Bipolar or BiCMOS LDO regulators. It is designed to maintain regulation while delivering 300-mA peak current. The Si9183 drives lower cost ceramic, as well as tantalum, output capacitors. Stability is guaranteed from maximum load current down to 0-mA load. An external noise bypass capacitor connected to the device’s CBP pin will reduce the LDO’s self-noise for low noise applications. The Si9183 includes a shutdown feature that allows users to completely disable the device and save power when no o...