RT9058 36V, 2A I , 100mA Low Dropout Voltage Linear Regulator Q General Description Features zz z zz 2A Quiescent Current The RT9058 is a low dropout (LDO) linear voltage regulator zz z zz 2% Output Accuracy that features high input voltage, low dropout voltage, ultra- zz z zz 100mA Output Current low operating current, and miniaturized packaging. With zz z zz 3.5V to 36V Input Voltage Range quiescent current as low as 2A, the RT9058 is ideal for zz z zz Dropout Voltage : 0.35V at 10mA/V 5V CC battery-powered equipment. 0.5V at 10mA/V 3.5V CC The RT9058 s stability requirements are easily met with zz z zz Fixed Output Voltage : 2.5V, 3V, 3.3V, 5V, 6V, 9V, all types of output capacitors, including tiny ceramic 12V capacitors, over its wide input range (3.5V to 36V) and its zz z zz Stable with Ceramic or Tantalum Capacitors load current range (0mA to 100mA). The RT9058 offers zz z zz Current Limit Protection standard output voltages of 2.5V, 3V, 3.3V, 5V, 6V, 9V zz z zz Over Temperature Protection and 12V. zz z zz SOT-23-3, SOT-89-3 Packages zz z zz RoHS Compliant and Halogen Free Applications z Portable, Battery Powered Equipment z Ultra Low Power Microcontrollers z Notebook Computers Pin Configurations (TOP VIEW) GND VCC 3 3 23 2 2 VCC VOUT GND VOUT GND VOUT VCC SOT-23-3 SOT-23-3 (L-Type) SOT-89-3 Functional Pin Description Pin No. Pin Name Pin Function SOT-23-3 SOT-23-3 (L-Type) SOT-89-3 1 3 1 VCC Supply Voltage Input. 2 2 3 VOUT Output of the Regulator. 3 1 2 GND Ground. Simplified Application Circuit RT9058 VCC V V VOUT OUT CC GND Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. DS9058-00 April 2013 www.richtek.com 1+ RT9058 Ordering and Marking Information Output Marking Output Marking Part Number Package Part Number Package Voltage Information Voltage Information RT9058-25GV SOT-23-3 00= RT9058-60GV SOT-23-3 0R= RT9058-25GVL S2.5V OT-23-3 (L) 2A= RT9058-60GVL S6.0V OT-23-3 (L) 2D= RT9058-25GX SOT-89-3 00= RT9058-60GX SOT-89-3 0D= RT9058-30GV SOT-23-3 2H= RT9058-90GV SOT-23-3 0N= RT9058-30GVL S3.0V OT-23-3 (L) 2G= RT9058-90GVL S9.0V OT-23-3 (L) 2E= RT9058-30GX SOT-89-3 10= RT9058-90GX SOT-89-3 0C= RT9058-33GV SOT-23-3 03= RT9058-C0GV SOT-23-3 0M= RT9058-33GVL S3.3V OT-23-3 (L) 2B= RT9058-C0GVL S12.0V OT-23-3 (L) 2F= RT9058-33GX SOT-89-3 01= RT9058-C0GX SOT-89-3 0B= RT9058-50GV SOT-23-3 06= RT9058-50GVL S5.0V OT-23-3 (L) 2C= RT9058-50GX SOT-89-3 02= Function Block Diagram VCC VOUT OCP R1 - OTP GND Bandgap R2 Reference Operation The RT9058 is a high input voltage linear regulator Current Limit Protection specifically designed to minimize external components. The RT9058 provides a current limit function to prevent The input voltage range is from 3.5V to 36V. damage during output over-load or shorted-circuit conditions. The output current is detected by an internal Output Transistor sensing transistor. The RT9058 includes a built-in low on-resistance P-MOSFET output transistor for low dropout voltage Over Temperature Protection applications. The over temperature protection function will turn off the P-MOSFET when the internal junction temperature Error Amplifier exceeds 150C (typ.) and the output current exceeds 4mA. The Error Amplifier compares the output feedback voltage Once the junction temperature cools down by from an internal feedback voltage divider to an internal approximately 20C, the regulator will automatically reference voltage and controls the P-MOSFET s gate resume operation. voltage to maintain output voltage regulation. Copyright 2013 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation. www.richtek.com DS9058-00 April 2013 2