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RT9187-33PQV Datasheet(PDF) 1 Page - Richtek Technology Corporation |
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RT9187-33PQV Datasheet(HTML) 1 Page - Richtek Technology Corporation |
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1 / 9 page  RT9187 1 DS9187-09 April 2008 www.richtek.com Pin Configurations Applications CDMA/GSM Cellular Handsets Battery-Powered Equipment Laptop, Palmtops, Notebook Computers Hand-Held Instruments Mini PCI & PCI-Express Cards PCMCIA & New Cards Portable Information Appliances 1A, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator Ordering Information Marking Information For marking information, contact our sales representative directly or through a RichTek distributor located in your area, otherwise visit our website for detail. General Description The RT9187 is a high-performance, 1A LDO regulator, offering extremely high PSRR and ultra-low dropout. Ideal for portable RF and wireless applications with demanding performance and space requirements. A noise reduction pin is also available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The RT9187 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9187 consumes less than 0.1uA in shutdown mode and has fast turn-on time less than 40 μs. The other features include ultra-low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the VDFN-8L 3x3 and SOP-8 (Exposed Pad) package. (TOP VIEW) VDFN-8L 3x3 Features Ultra-Low-Noise for RF Application Ultra-Fast Response in Line/Load Transient Quick Start-Up (Typically 40 μμμμμs) < 0.1uA Standby Current When Shutdown Low Dropout : 240mV at 1A Wide Operating Voltage Ranges : 2.5V to 5.5V TTL-Logic-Controlled Shutdown Input Current Limiting Protection Thermal Shutdown Protection Only 2.2uF Output Capacitor Required for Stability High Power Supply Rejection Ratio RoHS Compliant and 100% Lead (Pb)-Free VIN VOUT VOUT VIN EN BP/ADJ NC GND 7 6 5 1 2 3 4 8 9 Note : Richtek Pb-free and Green products are : RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020. Suitable for use in SnPb or Pb-free soldering processes. 100% matte tin (Sn) plating. SOP-8 (Exposed Pad) VIN VIN VOUT VOUT EN NC BP/ADJ GND GND 2 3 4 5 6 7 8 9 RT9187( Package Type QV : VDFN-8L 3x3 (V-Type) SP : SOP-8 (Exposed Pad-Option 1) Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commer- cial Standard) - ) None : Adjustable Output Fixed Output Voltage Code 10 : 1.0V 11 : 1.1V : 32 : 3.2V 33 : 3.3V 1L : 1.34V |
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