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SI9183DT-50-T1 Datasheet(PDF) 1 Page - Vishay Siliconix |
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SI9183DT-50-T1 Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 11 page Available Si9183 Vishay Siliconix Document Number: 71258 S-51147—Rev. G, 20-Jun-05 www.vishay.com 1 High-Performance, Size Saving 150-mA CMOS LDO Regulator FEATURES D Low 135-mV Dropout at 150-mA Load D Guaranteed 150-mA Output Current D 300-mA Peak Output Current Capability D Uses Low ESR Ceramic Output Capacitor D Fast Load And Line Transient Response D Low Output Noise D 1-mA Maximum Shutdown Current D Built-in Short Circuit And Thermal Protection D Fixed 1.8-V, 2.5-V, 2.8-V, 2.85-V, 3.0-V, 3.3-V, 5.0-V or Adjustable Output Voltage Options (Version B) D Thin SOT-23 5-Pin Package APPLICATIONS D Battery Powered Portable Systems D Cellular Phones D PDAs, Palmtops D Pagers D Post Regulators for Multi-Output Converters D 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 output is required. The Si9183, in Thin SOT23-5 packaging, is available in two versions (Version A or B). Version A offers low noise performance, while Version B features adjustable output voltage. The Si9183 is available in both standard and lead (Pb)-free packages. TYPICAL APPLICATIONS CIRCUITS FIGURE 1. Version A with Low Output Noise FIGURE 2. Version B with Adjustable Output 3 2 Si9183-A 1 4 5 VIN GND SD VOUT BP VIN SD VOUT 1 mF 2.2 mF Thin SOT-23, 5-Lead 3 2 Si9183-B 1 4 5 VIN GND SD VOUT FB VIN SD VOUT 1 mF 2.2 mF 0.1 mF ON OFF ON OFF Thin SOT-23, 5-Lead |
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