RT9161A-33GX Richtek

RT9161/A 300/500mA Low Dropout Linear Voltage Regulator General Description Features zz z zz Low Dropout Voltage of 200mV at Output Current The RT9161/A is a 300/500mA fixed output voltage low 100mA, 450mV at Output Current 300mA, and dropout linear regulator. Typical ground current is 750mV at 500mA Output Current approximately 110A, from zero to maximum loading zz z zz Guaranteed 300/500mA Output Current conditions. Wide range of available output voltage fits most zz z zz Internal 1.5 P-MOSFET Draws No Base Current of applications. Built-in output current-limiting most zz z zz Low Ground Current 110A thermal-limiting provide maximal protection against any zz z zz 2% Accuracy Output Voltage fault conditions. zz z zz Input Voltage Range up to 12V For ease of application, the RT9161/A comes in the popular zz z zz Extremely Tight Load Regulation 3-pin SOT-23 (300mA), SOT-89 (300mA), SOT-223 zz z zz Fast Transient Response (500mA), or TO-92 packages. zz z zz Current-limiting and Thermal-limiting zz z zz RoHS Compliant and 100% Lead (Pb)-Free Ordering Information RT9161/A- Applications z Voltage Regulator for LAN Card, CD-ROM, and DVD Package Type z Wireless Communication Systems V : SOT-23-3 X : SOT-89 z Battery Powered Systems G : SOT-223 ZL : TO-92 (L-Type) Marking Information ZT : TO-92 (T-Type) For marking information, contact our sales representative Lead Plating System P : Pb Free directly or through a Richtek distributor located in your G : Green (Halogen Free and Pb Free) area. Output Voltage 15 : 1.5V Pin Configurations 16 : 1.6V : (TOP VIEW) 49 : 4.9V 50 : 5.0V VIN 500mA Output Current 3 300mA Output Current 12 3 Note : 2 Richtek products are : GND VOUT RoHS compliant and compatible with the current require- GND VIN VOUT SOT-23-3 (TAB) ments of IPC/JEDEC J-STD-020. SOT-89 Suitable for use in SnPb or Pb-free soldering processes. 1 2 3 GND VIN VOUT (TAB) SOT-223 DS9161/A-35 April 2011 www.richtek.com 1+ + + RT9161/A 3 VOUT 3 VOUT 2 GND 2 VIN 1VIN 1 GND TO-92 (L-Type) TO-92 (T-Type) Typical Application Circuit RT9161/A VIN VOUT V V IN OUT C C IN OUT GND 1uF 10uF Electrolytic Functional Pin Description Pin Name Pin Function VOUT Output Voltage. GND Ground. VIN Power Input. Function Block Diagram VIN VOUT Error Amp Current Limiting Sensor - Thermal 1.2V Shutdown Reference GND www.richtek.com DS9161/A-35 April 2011 2