® RT9063 1μ μA IQ, 250mA Low-Dropout Linear Regulator General Description Features The RT9063 is a low-dropout (LDO) linear regulator that features high input voltage, low dropout voltage, ultra-low operating current, and miniaturized packaging. With quiescent current as low as 1μA, the RT9063 is ideal for battery-powered equipment. The RT9063's stability requirements are easily met with all types of output capacitors, including tiny ceramic capacitors, over its wide input range and its load current range (0mA to 250mA). The RT9063 offers standard output voltages of 1.2V, 1.5V, 1.8V, 2.5V and 3.3V. 2 VOUT Portable, Battery Powered Equipment Ultra Low Power Microcontrollers RT9063-12GV RT9063-12GVN RT9063-12GX VCC RT9063-15GV RT9063-15GVN RT9063-18GV RT9063-18GVN 3 2 VOUT SOT-23-3 (N-Type) 2 3 GND VOUT RT9063-18GX RT9063-23GV RT9063-23GVN RT9063-25GV RT9063-25GVN RT9063-25GX RT9063-27GV SOT-89-3 Simplified Application Circuit RT9063 VCC VOUT GND VOUT COUT Copyright © 2014 Richtek Technology Corporation. All rights reserved. DS9063-01 March 2014 Part Number SOT-23-3 CIN 200mA Output Current Dropout Voltage : 0.4V at 200mA Fixed Output Voltage 1.2V/1.5V/1.8V/2.5V/3.3V Stable with Ceramic or Tantalum Capacitor Current Limit Protection Over-Temperature Protection SOT-23-3, SOT-89-3 Packages RoHS Compliant and Halogen Free Ordering and Marking Information 3 VCC GND VCC (TOP VIEW) GND Applications Pin Configurations VCC 1μ μA Quiescent Current ±2% Output Accuracy RT9063-27GVN RT9063-28GV RT9063-28GVN RT9063-33GV RT9063-33GVN RT9063-33GX Output Voltage Package Marking Information 1.2V SOT-23-3 SOT-23-3 (N) SOT-89-3 0G= 2T= 07= SOT-23-3 SOT-23-3 (N) SOT-23-3 SOT-23-3 (N) 2M= 2U= 0H= 2V= SOT-89-3 SOT-23-3 SOT-23-3 (N) SOT-23-3 08= 47= 42= 0J= SOT-23-3 (N) SOT-89-3 SOT-23-3 2W= 09= 48= SOT-23-3 (N) SOT-23-3 SOT-23-3 (N) SOT-23-3 43= 49= 44= 0K= SOT-23-3 (N) SOT-89-3 2X= 0A= 1.5V 1.8V 2.3V 2.5V 2.7V 2.8V 3.3V is a registered trademark of Richtek Technology Corporation. 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 GND Bandgap Reference R1 - + OTP R2 Operation The RT9063 is a high input voltage linear regulator specifically designed to minimize external components. Output Transistor The RT9063 includes a built-in low on-resistance P-MOSFET output transistor for low dropout voltage applications. Error Amplifier The Error Amplifier compares the output feedback voltage from an internal feedback voltage divider to an internal reference voltage and controls the P-MOSFET's gate voltage to maintain output voltage regulation. Copyright © 2014 Richtek Technology Corporation. All rights reserved. www.richtek.com 2 Current Limit The RT9063 provides a current limit function to prevent damage during output over-load or shorted-circuit conditions. The output current is detected by an internal sensing transistor. Over-Temperature Protection The over-temperature protection function will turn off the P-MOSFET when the internal junction temperature exceeds 150°C (typ.) and the output current exceeds 30mA. Once the junction temperature cools down by approximately 20°C, the regulator will automatically resume operation. is a registered trademark of Richtek Technology Corporation. DS9063-01 March 2014 RT9063 Absolute Maximum Ratings (Note 1) VCC to GND ----------------------------------------------------------------------------------------------------------------VOUT to VCC --------------------------------------------------------------------------------------------------------------VOUT to GND --------------------------------------------------------------------------------------------------------------Power Dissipation, PD @ TA = 25°C SOT-23-3 --------------------------------------------------------------------------------------------------------------------SOT-89-3 --------------------------------------------------------------------------------------------------------------------Package Thermal Resistance (Note 2) SOT-23-3, θJA ---------------------------------------------------------------------------------------------------------------SOT-89-3, θJA ---------------------------------------------------------------------------------------------------------------Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------Junction Temperature -----------------------------------------------------------------------------------------------------Storage Temperature Range --------------------------------------------------------------------------------------------ESD Susceptibility (Note 3) HBM (Human Body Model) ----------------------------------------------------------------------------------------------MM (Machine Model) ------------------------------------------------------------------------------------------------------ Recommended Operating Conditions −0.3V to 7V −7V to 0.3V −0.3V to 7V 0.41W 0.59W 243.3°C/W 167.7°C/W 260°C 150°C −65°C to 150°C 2kV 200V (Note 4) Supply Input Voltage, VCC ----------------------------------------------------------------------------------------------- 2.5V to 6V Junction Temperature Range --------------------------------------------------------------------------------------------- −40°C to 125°C Ambient Temperature Range --------------------------------------------------------------------------------------------- −40°C to 85°C Electrical Characteristics ((VOUT + 1) < VCC < 6V, TA = 25°C, unless otherwise specified.) Parameter Min Typ Max Unit 1.2 -- 3.3 V ILOAD = 1mA 2 -- 2 % ILOAD = 0.2A, VOUT 3V -- 0.4 1.2 ILOAD = 0.1A, VOUT < 3V -- 0.3 1 No Load -- 1 3 ILOAD = 1mA, VOUT > 1.8V -- 0.6 1 ILOAD = 1mA, VOUT 1.8V -- 0.6 1.3 10mA < ILOAD < 200mA, V OUT < 1.5V -- 1 1.4 10mA < ILOAD < 200mA, 1.5V VOUT < 2.5V -- 0.7 1.2 10mA < ILOAD < 250mA, V OUT 2.5V -- 0.6 1 f = 100Hz, IOUT = 50mA -- 70 -- f = 10kHz, IOUT = 50mA -- 40 -- 300 400 500 mA OTP Threshold -- 150 -- C OTP Hysteresis -- 20 -- C Output Voltage Range Symbol VOUT DC Output Accuracy Dropout Voltage Quiescent Current VDrop IQ Line Regulation Load Regulation Power Supply Rejection Ratio Output Current Limit Test Conditions PSRR VOUT = 0.5 x VOUT(Normal) Copyright © 2014 Richtek Technology Corporation. All rights reserved. DS9063-01 March 2014 V A % % dB is a registered trademark of Richtek Technology Corporation. www.richtek.com 3 RT9063 Note 1. Stresses beyond those listed “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect device reliability. Note 2. θJA is measured at TA = 25°C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. Note 3. Devices are ESD sensitive. Handling precaution is recommended. Note 4. The device is not guaranteed to function outside its operating conditions. Typical Application Circuit VCC CIN 1µF RT9063 VCC VOUT Copyright © 2014 Richtek Technology Corporation. All rights reserved. www.richtek.com 4 GND COUT 1µF VOUT is a registered trademark of Richtek Technology Corporation. DS9063-01 March 2014 RT9063 Typical Operating Characteristics Output Voltage vs. Output Current 3.32 3.31 3.31 3.30 Output Voltage (V) Output Voltage (V) Output Voltage vs. Temperature 3.32 ILOAD = 0mA ILOAD = 10mA ILOAD = 20mA 3.29 3.28 3.27 3.26 3.30 3.29 3.28 3.27 3.26 VCC = 5V, VOUT = 3.3V VCC = 5V, VOUT = 3.3V 3.25 3.25 -50 -25 0 25 50 75 100 125 0 30 Temperature (°C) Output Voltage vs. Input Voltage 120 150 180 3.31 2.0 3.30 3.29 ILOAD = 0mA ILOAD = 10mA ILOAD = 20mA 3.27 240 270 1.8 1.6 1.4 VCC = 4V VCC = 6V 1.2 3.26 VCC = 3.5V to 6V, VOUT = 3.3V VOUT = 3.3V 3.25 1.0 3.5 4 4.5 5 5.5 6 -50 -25 0 Input Voltage (V) 25 50 75 100 125 Temperature (°C) Quiescent Current vs. Input Voltage Dropout Voltage vs. Temperature 2.2 200 2.0 Dropout Voltage (mV) Quiescent Current (µA) 210 Quiescent Current vs. Temperature 2.2 Quiescent Current (µA) Output Voltage (V) 90 Output Current (mA) 3.32 3.28 60 1.8 1.6 1.4 150 ILOAD = 50mA ILOAD = 20mA ILOAD = 10mA 100 50 1.2 VCC = 5V, VOUT = 3.3V VCC = 3.5V to 6V, VOUT = 3.3V 1.0 0 3.5 4 4.5 5 5.5 Input Voltage (V) Copyright © 2014 Richtek Technology Corporation. All rights reserved. DS9063-01 March 2014 6 -50 -25 0 25 50 75 100 125 Temperature (°C) is a registered trademark of Richtek Technology Corporation. www.richtek.com 5 RT9063 Power Supply Rejection Ratio Output Current Limit vs. Temperature -30 400 -35 380 370 PSRR (dB) Output Current Limit (mA) 390 360 350 VCC = 6V VCC = 5V VCC = 4V 340 330 320 310 -40 -45 -50 -55 VOUT = 3.3V VCC = 3.5V, VOUT = 1.5V, ILOAD = 50mA, Capacitance = 10μF -60 300 -50 -25 0 25 50 75 100 10 125 100 1000 10000 Temperature (°C) Frequency (Hz) Load Transient Response Line Transient Response 100000 VOUT (20mV/Div) VIN (2V/Div) VOUT (50mV/Div) IOUT (100mV/Div) VCC = 3.8V to 6V, VOUT = 3.3V, ILOAD = 10mA VCC = 6V, VOUT = 3.3V, ILOAD = 10mA to 250mA Time (250μs/Div) Time (1ms/Div) Ground Current vs. Load Current Power Up Response 200 Ground Current (µA) VCC = 6V, VOUT = 2.5V VIN (5V/Div) 150 100 Rising, TA = 125°C Rising, TA = 25°C Rising, TA = −40°C VOUT (1V/Div) 50 IOUT (100mA/Div) 0 0.001 0.01 0.1 1 10 100 1000 VCC = 5V, VOUT = 3.3V, ILOAD = 250mA Time (100μs/Div) Load Current (mA) Copyright © 2014 Richtek Technology Corporation. All rights reserved. www.richtek.com 6 is a registered trademark of Richtek Technology Corporation. DS9063-01 March 2014 RT9063 Applications Information Any output capacitor meeting the minimum 1mΩ ESR (Equivalent Series Resistance) requirement may be used. Place the output capacitor close to the IC's VOUT and GND pins. Increasing capacitance and decreasing ESR can improve the circuit's PSRR and line transient response. Thermal Considerations For continuous operation, do not exceed absolute the maximum junction temperature. The maximum power dissipation depends on the thermal resistance of the IC package, PCB layout, rate of surrounding airflow, and the allowed difference between the junction and ambient temperatures. The maximum power dissipation can be calculated by the following formula : 1.0 Maximum Power Dissipation (W)1 Like any low dropout linear regulator, the RT9063's external input and output capacitors must be properly selected for stability and performance. Use a 1μF or larger input capacitor and place it close to the IC's VCC and GND pins. Four-Layer PCB 0.8 SOT-89-3 0.6 SOT-23-3 0.4 0.2 0.0 0 25 50 75 100 125 Ambient Temperature (°C) Figure 1. Derating Curve of Maximum Power Dissipation PD(MAX) = (TJ(MAX) − TA) / θJA where TJ(MAX) is the maximum junction temperature, TA is the ambient temperature, and θJA is the junction to ambient thermal resistance. The recommended operating conditions specify a maximum junction temperature is 125°C. The junction to ambient thermal resistance, θJA, is layout dependent. On a standard JEDEC 51-7 four-layer thermal test board , the thermal resistance, θJA, of the SOT-23-3 package is 243.3°C/W. For the SOT-89-3 package, the θJA, is 167.7°C/W. The maximum power dissipation at TA = 25°C can be calculated by the following formula : PD(MAX) = (125°C − 25°C) / (243.3°C/W) = 0.41W for SOT-23-3 package PD(MAX) = (125°C − 25°C) / (167.7°C/W) = 0.59W for SOT-89-3 package For a fixed T J(MAX) of 125°C, the maximum power dissipation depends on the operating ambient temperature and the package's thermal resistance, θJA. The derating curve in Figure 1 shows the effect of rising ambient temperature on the maximum recommended power dissipation. Copyright © 2014 Richtek Technology Corporation. All rights reserved. DS9063-01 March 2014 is a registered trademark of Richtek Technology Corporation. www.richtek.com 7 RT9063 Outline Dimension H D L C B e A A1 b Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.889 1.295 0.035 0.051 A1 0.000 0.152 0.000 0.006 B 1.397 1.803 0.055 0.071 b 0.356 0.508 0.014 0.020 C 2.591 2.997 0.102 0.118 D 2.692 3.099 0.106 0.122 e 1.803 2.007 0.071 0.079 H 0.080 0.254 0.003 0.010 L 0.300 0.610 0.012 0.024 SOT-23-3 Surface Mount Package Copyright © 2014 Richtek Technology Corporation. All rights reserved. www.richtek.com 8 is a registered trademark of Richtek Technology Corporation. DS9063-01 March 2014 RT9063 D D1 A B C C1 e e H A b b1 b Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 1.397 1.600 0.055 0.063 b 0.356 0.483 0.014 0.019 B 2.388 2.591 0.094 0.102 b1 0.406 0.533 0.016 0.021 C 3.937 4.242 0.155 0.167 C1 0.787 1.194 0.031 0.047 D 4.394 4.597 0.173 0.181 D1 1.397 1.753 0.055 0.069 e 1.448 1.549 0.057 0.061 H 0.356 0.432 0.014 0.017 3-Lead SOT-89 Surface Mount Package Richtek Technology Corporation 14F, No. 8, Tai Yuen 1st Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Richtek products are sold by description only. Richtek reserves the right to change the circuitry and/or specifications without notice at any time. Customers should obtain the latest relevant information and data sheets before placing orders and should verify that such information is current and complete. Richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product. Information furnished by Richtek is believed to be accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Richtek or its subsidiaries. DS9063-01 March 2014 www.richtek.com 9