RT9063 1A I , 250mA Low-Dropout Linear Regulator Q General Description Features zz z zz 1A Quiescent Current The RT9063 is a low-dropout (LDO) linear regulator that zz z zz 2% Output Accuracy features high input voltage, low dropout voltage, ultra-low zz z zz 200mA Output Current operating current, and miniaturized packaging. With zz z zz Dropout Voltage : 0.4V at 200mA quiescent current as low as 1A, the RT9063 is ideal for zz z zz Fixed Output Voltage 1.2V/1.5V/1.8V/2.5V/3.3V battery-powered equipment. zz z zz Stable with Ceramic or Tantalum Capacitor The RT9063 s stability requirements are easily met with zz z zz Current Limit Protection all types of output capacitors, including tiny ceramic zz z zz Over-Temperature Protection capacitors, over its wide input range and its load current zz z zz SOT-23-3, SOT-89-3 Packages range (0mA to 250mA). The RT9063 offers standard output zz z zz RoHS Compliant and Halogen Free voltages of 1.2V, 1.5V, 1.8V, 2.5V and 3.3V. Applications Pin Configurations z Portable, Battery Powered Equipment (TOP VIEW) z Ultra Low Power Microcontrollers GND 3 Ordering and Marking Information Output Marking 2 Part Number Package Voltage Information VCC VOUT RT9063-12GV SOT-23-3 0G= SOT-23-3 RT9063-12GVN S1.2V OT-23-3 (N) 2T= VCC RT9063-12GX SOT-89-3 07= 3 RT9063-15GV SOT-23-3 2M= RT9063-15GVN S1.5V OT-23-3 (N) 2U= 2 RT9063-15GX SOT-89-3 TBD GND VOUT RT9063-18GV SOT-23-3 0H= SOT-23-3 (N-Type) RT9063-18GVN S1.8V OT-23-3 (N) 2V= RT9063-18GX SOT-89-3 08= RT9063-25GV SOT-23-3 0J= RT9063-25GVN S2.5V OT-23-3 (N) 2W= 23 RT9063-25GX SOT-89-3 09= RT9063-33GV SOT-23-3 0K= VCC GND VOUT RT9063-33GVN S3.3V OT-23-3 (N) 2X= SOT-89-3 RT9063-33GX SOT-89-3 0A= Simplified Application Circuit RT9063 V VCC VOUT V CC OUT C C IN OUT GND Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS9063-00 June 2013 www.richtek.com 1+ RT9063 Functional Pin Description Pin No. Pin Name Pin Function SOT-23-3 SOT-23-3 (N-Type) SOT-89-3 1 3 1 VCC Supply Voltage Input. 2 2 3 VOUT Output of the Regulator. 3 1 2 GND Ground. Function Block Diagram VOUT VCC OCP R1 - OTP GND Bandgap R2 Reference Operation The RT9063 is a high input voltage linear regulator Current Limit specifically designed to minimize external components. The RT9063 provides a current limit function to prevent damage during output over-load or shorted-circuit Output Transistor conditions. The output current is detected by an internal The RT9063 includes a built-in low on-resistance sensing transistor. P-MOSFET output transistor for low dropout voltage applications. Over-Temperature Protection The over-temperature protection function will turn off the Error Amplifier P-MOSFET when the internal junction temperature The Error Amplifier compares the output feedback voltage exceeds 150C (typ.) and the output current exceeds from an internal feedback voltage divider to an internal 30mA. Once the junction temperature cools down by reference voltage and controls the P-MOSFET s gate approximately 20C, the regulator will automatically voltage to maintain output voltage regulation. resume operation. Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS9063-00 June 2013 2