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LP3983H Datasheet(PDF) 1 Page - Lowpower Semiconductor inc |
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LP3983H Datasheet(HTML) 1 Page - Lowpower Semiconductor inc |
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1 / 10 page  Preliminary Datasheet LP3983H LP3983H–00 Version 1.0 Aug.-2014 Email: marketing@lowpowersemi.com www.lowpowersemi.com Page 1 of 10 600mA,Ultra-low noise, Small Package Ultra-Fast CMOS LDO Regulator General Description The LP3983H is designed for portable RF and wireless applications with demanding performance and space requirements. The LP3983H performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The LP3983H also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The LP3983H consumes less than 0.01µA in shutdown mode and has fast turn-on time less than 50µs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. It is available in the 5-lead of SOT23-5 packages. Ordering Information LP3983H □ □ □ □ □ □ FB voltage 09: 0.9V 08: 0.8V F: Pb-Free Package Type B5: SOT23-5 B6: SOT23-6 Output Voltage Type A: Adjustable Features Ultra-Low-Noise for RF Application 2V- 6V Input Voltage Range Low Dropout : 300mV @ 400mA 600mA Output Current, 750mA Peak Current High PSRR: -68dB at 1KHz < 0.01uA Standby Current When Shutdown Available in SOT23-5/6 Package TTL-Logic-Controlled Shutdown Input Ultra-Fast Response in Line/Load transient Current Limiting and Thermal Shutdown Protection Quick start-up (typically 20uS) Typical Application Circuit Applications Portable Media Players/MP3 players Cellular and Smart mobile phone LCD DSC Sensor Wireless Card GND 2 EN 3 VIN 1 OUT 5 ADJ 4 LP3983HAB5F Chip Enable 2.2uF Vin 2.2uF R1 R2 Vout 22pF |
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Similar Description - LP3983H |
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