RT9067-50GX5

RT9067 Ultra Low Power, 14V, 200mA LDO Regulator General Description Features The RT9067 is a low-dropout (LDO) voltage regulator   with enable function offering benefits of up to 14V input voltage, low-dropout, low-power operation,  and   miniaturized packaging.  The features of low quiescent current as low as 2µA and  zero disable current is ideal for powering the battery  equipment to a longer service life. The RT9067 is stable  2A Ground Current at no Load ±2% Output Accuracy 200mA Output Current with EN Zero Disable Current Maximum Operating Input Voltage 14V Dropout Voltage: 0.4V at 100mA Support Fixed Output Voltage 2.5V, 3.3V, 4.2V, 5V, 9V Stable with Ceramic or Tantalum Capacitor Current Limit Protection Over-Temperature Protection RoHS Compliant and Halogen Free with ceramic output capacitors over its wide input range  from 3.5V to 14V and entire range of output load current  (0mA to 200mA). Ordering Information RT9067- Applications    Package Type B : SOT-23-5 X5 : SOT-89-5 Portable, Battery Powered Equipments Ultra Low Voltage Microcontrollers Notebook Computers Lead Plating System G : Green (Halogen Free and Pb Free) Output Voltage 25 : 2.5V 33 : 3.3V 42 : 4.2V 50 : 5V 90 : 9V Marking Information For marking information, contact our sales representative directly or through a Richtek distributor located in your area. Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Simplified Application Circuit RT9067 EN EN VOUT VOUT COUT VCC VCC CIN GND Copyright © 2016 Richtek Technology Corporation. All rights reserved. DS9067-05 February 2016 is a registered trademark of Richtek Technology Corporation. www.richtek.com 1 RT9067 Pin Configurations (TOP VIEW) VOUT NC 5 4 2 VOUT VCC 5 4 3 1 2 3 NC GND EN VCC GND EN SOT-23-5 SOT-89-5 Functional Pin Description Pin No. Pin Name Pin Function SOT-23-5 SOT-89-5 1 4 VCC Supply Voltage Input. 2 2 GND Ground. 3 3 EN Enable Control Input. 4 1 NC No Internal Connection. 5 5 VOUT Output of the Regulator. Function Block Diagram VCC VOUT Current/Thermal Sense + GND EN Bandgap Reference Copyright © 2016 Richtek Technology Corporation. All rights reserved. www.richtek.com 2 R1 R2 is a registered trademark of Richtek Technology Corporation. DS9067-05 February 2016 RT9067 Operation Basic Operation The RT9067 is a low quiescent current linear regulator designed especially for low external component systems. The input voltage range is from 3.5V to 14V. The minimum required output capacitance for stable operation is 1F effective capacitance after consideration of the temperature and voltage coefficient of the capacitor. Output Transistor The RT9067 builds in a P-MOSFET output transistor which provides a low switch-on resistance for low dropout voltage applications. Error Amplifier The Error Amplifier compares the internal reference voltage with the output feedback voltage from the internal divider, and controls the Gate voltage of PMOSFET to support good line regulation and load regulation at output voltage. Enable The RT9067 delivers the output power when it is set to enable state. When it works in disable state, there is no output power and the operation quiescent current is zero. Current Limit Protection The RT9067 provides current limit function to prevent the device from damages during over-load or shortedcircuit conditions. This current is detected by an internal sensing transistor. Over-Temperature Protection The over-temperature protection function turns off the P-MOSFET when the junction temperature exceeds 150C (typ.) and the output current exceeds 30mA. Once the junction temperature cools down by approximately 20C, the regulator automatically resumes operation. Copyright © 2016 Richtek Technology Corporation. All rights reserved. DS9067-05 February 2016 is a registered trademark of Richtek Technology Corporation. www.richtek.com 3 RT9067 Absolute Maximum Ratings (Note 1)  VCC, EN to GND -------------------------------------------------------------------------------------------------- 0.3V to 15V  VOUT to GND RT9067-90 ---------------------------------------------------------------------------------------------------------- 0.3V to 15V RT9067-25/ RT9067-33/RT9067-50 -------------------------------------------------------------------------- 0.3V to 6V  VOUT to VCC --------------------------------------------------------------------------------------------------------------------------------------------------------------- 15V to 0.3V  Power Dissipation, PD @ TA = 25°C SOT-23-5 ------------------------------------------------------------------------------------------------------------------- 0.45W SOT-89-5 ----------------------------------------------------------------------------------------------------------- 0.87W  Package Thermal Resistance (Note 2) SOT-23-5, JA---------------------------------------------------------------------------------------------------------------------------------------------------------------- 218.1°C/W SOT-89-5, JA --------------------------------------------------------------------------------------------------------------------------------------------------------------- 113.9°C/W  Lead Temperature (Soldering, 10 sec) ------------------------------------------------------------------------------ 260°C  Junction Temperature -------------------------------------------------------------------------------------------- 150°C  Storage Temperature Range ----------------------------------------------------------------------------------- 60°C to 150°C  ESD Susceptibility (Note 3) HBM (Human Body Model) ------------------------------------------------------------------------------------- 2kV Recommended Operating Conditions (Note 4)  Supply Input Voltage, VCC ------------------------------------------------------------------------------------------------------------------------------------- 3.5V to 14V  Junction Temperature Range ----------------------------------------------------------------------------------- 40°C to 125°C  Ambient Temperature Range ----------------------------------------------------------------------------------- 40°C to 85°C Electrical Characteristics (VOUT +1 < VCC < 14V, TA = 25C, unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Supply Voltage VCC 3.5 -- 14 V Output Voltage Range VOUT 2.5 -- 12 V DC Output Accuracy VOUT ILOAD = 1mA 2 -- 2 % ILOAD = 100mA, VCC > 4.5V -- 0.4 1.2 V -- -- 1.5 V ILOAD = 0mA, VOUT ≦ 5.5V -- 2 -- μA ILOAD = 0mA, VOUT > 5.5V -- 3.5 -- μA Shutdown GND Current VEN = 0V -- 0.1 -- μA Shutdown Leakage Current VEN = 0V, VOUT = 0V -- 0.1 -- μA VEN = 14V -- 0.1 -- μA Dropout Voltage VDROP ILOAD = 100mA, VCC > 3.5V and < 4.5V VCC Consumption Current EN Input Current IQ IEN Copyright © 2016 Richtek Technology Corporation. All rights reserved. www.richtek.com 4 is a registered trademark of Richtek Technology Corporation. DS9067-05 February 2016 RT9067 Parameter Symbol VLINE Line Regulation Test Conditions Min Typ Max Unit ILOAD = 1mA, 5.5V < VCC < 14V -- -- 0.4 % ILOAD = 1mA, 3.5V < VCC < 5.5V -- 0.1 0.3 % -- 0.5 1 % 210 350 490 mA Load Regulation VLOAD 1mA < ILOAD < 200mA Output Current Limit ILIM VOUT = 0.5 x VOUT(normal) Enable Input Voltage Logic-High VIH -- -- 2 Logic-Low VIL 0.6 -- -- -- 150 -- °C -- 20 -- °C Thermal Shutdown Temperature TSD Thermal Shutdown Hysteresis TSD V ILOAD = 30mA 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. JA is measured at TA = 25C on a high effective thermal conductivity four-layer test board per JEDEC 51-7. JC is measured at the exposed pad of the package. 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 RT9067 EN VIN 3.5V to 14V EN VOUT CIN 1μF VCC Copyright © 2016 Richtek Technology Corporation. All rights reserved. DS9067-05 February 2016 VOUT COUT (Effective Capacitance  1μF) GND is a registered trademark of Richtek Technology Corporation. www.richtek.com 5 RT9067 Typical Operating Characteristics Output Voltage vs. Output Current 3.3 3.28 3.28 Output Voltage (V) Output Voltage (V) Output Voltage vs. Temperature 3.30 3.26 Vcc = 4.3V, Load = 0.1mA Vcc = 4.3V, Load = 20mA 3.24 Vcc = 4.3V 3.26 Vcc = 14V 3.24 3.22 3.22 VOUT = 3.3V VOUT=3.3V 3.2 3.20 -50 -25 0 25 50 75 100 0 125 20 40 60 Temperature (℃) Quiescent Current vs. Temperature 2.5 3.28 2 Quiescent Current (μA) Output Voltage (V) Output Voltage vs. Input Voltage 3.3 3.26 3.24 Load = 0mA Load = 0.1mA Load = 10mA Load = 20mA 3.22 5 6 1 0.5 VOUT = 3.3V 7 8 9 10 11 12 13 Vcc = 4.3V Vcc = 14V 1.5 0 3.2 4 -50 14 -25 0 25 50 75 100 125 Temperature (℃) Input Voltage (V) SHDN Input Leakage Current vs. VIN Quiescent Current vs. Input Voltage 2 20 1.8 16 Shutdown Current (nA) Quiescent Current (μA) 80 100 120 140 160 180 200 Output Current (mA) 1.6 1.4 1.2 12 8 4 VOUT = 3.3V EN = 0V 0 1 4 5 6 7 8 9 10 11 12 13 Input Voltage (V) Copyright © 2016 Richtek Technology Corporation. All rights reserved. www.richtek.com 6 14 4 6 8 10 12 14 Input Voltage (V) is a registered trademark of Richtek Technology Corporation. DS9067-05 February 2016 RT9067 SHDN Input Leakage Current vs. Temp. Enable Threshold vs. Input Voltage 2 High Threshold 0.8 1.6 Vcc = 14V Vcc = 4.3V EN Voltage (V) Shutdown Leakage Current (μA) 1 0.6 0.4 0.2 1.2 Low Threshold 0.8 0.4 EN = 0V 0 -50 -25 0 25 50 75 100 0 125 4 6 8 Temperature (℃) Enable Threshold vs. Temperature 12 0.5 0.4 Dropout Voltage (V) 1.6 High Threshold 1.2 0.8 Low Threshold 0.3 0.2 0.1 0.4 Vcc = 14V Load = 50mA 0 0 -50 -25 0 25 50 75 100 -50 125 -25 25 50 75 100 125 Ground Current vs. Load Current Current Limit vs. Temperature 250 450 Vcc = 4.3V 400 300 Vcc = 14V 250 200 150 100 GND Current (μA) 200 350 Current Limit (A) 0 Temperature (℃) Temperature (℃) 150 100 50 50 Rising, Ta = +125℃ Rising, Ta = +25℃ Rising, Ta = -40℃ VOUT = 3.3V 0 -50 -25 0 25 50 75 100 Temperature ( °C ) Copyright © 2016 Richtek Technology Corporation. All rights reserved. DS9067-05 14 Dropout Voltage vs. Temperature 2 EN Voltage (V) 10 Input Voltage (V) February 2016 125 0 0.001 0.01 0.1 1 10 100 1000 LOAD Current (mA) is a registered trademark of Richtek Technology Corporation. www.richtek.com 7 RT9067 PSRR vs. Frequency Load Transient Response 0 Vcc = 4.3V, VOUT = 3.3V, Load = 100mA PSRR (dB) -20 VOUT_ac (50mV/Div) -40 -60 ILOAD (50mA/Div) -80 10 100 1000 Vcc = 12V, VOUT = 3.3V, ILOAD = 10mA to 100mA 10000 Frequency (Hz) Time (250μs/Div) Line Transient Response Load Transient Response VOUT_ac (100mV/Div) VIN (5V/Div) VOUT_ac (20m/Div) Vcc = 6V to 12V, VOUT = 3.3V, ILOAD = 100mA ILOAD (100mA/Div) Time (250μs/Div) Time (100μs/Div) Power On from EN Power Off from EN Vcc (10V/Div) Vcc (10V/Div) EN (2V/Div) VOUT (2V/Div) EN (2V/Div) ILOAD (100mA/Div) VOUT (2V/Div) Vcc = 12V, VOUT = 3.3V, ILOAD = 100mA Time (25μs/Div) Copyright © 2016 Richtek Technology Corporation. All rights reserved. www.richtek.com 8 Vcc = 4.3V, VOUT = 3.3V, ILOAD = 10mA to 150mA ILOAD (100mA/Div) Vcc = 12V, VOUT = 3.3V, ILOAD = 100mA Time (25μs/Div) is a registered trademark of Richtek Technology Corporation. DS9067-05 February 2016 RT9067 Application Information Like any low dropout linear regulator, the RT9067's Thermal Considerations external input and output capacitors must be properly For continuous operation, do not exceed absolute selected for stability and performance. Use a 1µF or maximum junction temperature. The maximum power larger input capacitor and place it close to the IC's VCC dissipation depends on the thermal resistance of the IC and GND pins. Any output capacitor meeting meets the package, PCB layout, rate of surrounding airflow, and minimum 1mΩ ESR (Equivalent Series Resistance) and difference between junction and ambient temperature. effective capacitance larger than 1F requirement may The maximum power dissipation can be calculated by be used. Place the output capacitor close to the IC's the following formula: VOUT and GND pins. Increasing capacitance and PD(MAX) = (TJ(MAX)  TA) / JA decreasing ESR can improve the circuit's PSRR and where TJ(MAX) is the maximum junction temperature, TA line transient response. is the ambient temperature, and JA is the junction to ambient thermal resistance. Enable The RT9067 goes into sleep mode when the EN pin is in a logic low condition. During this condition, the RT9067 has an EN pin to turn on or turn off the regulator, When the EN pin is in logic high, the regulator will be turned on. The shutdown current is 0μA typical. The EN pin may be directly tied to Vcc to keep the part on. The Enable input is CMOS logic and cannot be left floating. For recommended operating condition specifications, the maximum junction temperature is 125C. The junction to ambient thermal resistance, JA, is layout dependent. For SOT-23-5 packages, the thermal resistance, JA, is 218.1C/W on a standard JEDEC 517 four-layer thermal test board. For SOT-89-5 packages, the thermal resistance, JA, is 113.9C/W on a standard JEDEC 51-7 four-layer thermal test board. The PSRR maximum power dissipation at TA = 25C can be The power supply rejection ratio (PSRR) is defined as the gain from the input to output divided by the gain from the supply to the output. The PSRR is found to be ∆Gain Error PSRR=20 x log( ) ∆Supply Note that in heavy load measuring, Δsupply will cause Δtemperature. And Δtemperature will cause Δoutput voltage. So the temperature effect is include in heavy load PSRR measuring. Current Limit calculated by the following formula : PD(MAX) = (125C  25C) / (218.1C/W) = 0.4585W for SOT-23-5 package PD(MAX) = (125C  25C) / (113.9C/W) = 0.8779W for SOT-89-5 package The maximum power dissipation depends on the operating ambient temperature for fixed TJ(MAX) and thermal resistance, JA. The derating curve in Figure 1 allows the designer to see the effect of rising ambient temperature on the maximum power dissipation. The RT9067 contains an independent current limiter, which monitors and controls the pass transistor's gate voltage, limiting the output current to 0.35A (typ.). The output can be shorted to ground indefinitely without damaging the part. Copyright © 2016 Richtek Technology Corporation. All rights reserved. DS9067-05 February 2016 is a registered trademark of Richtek Technology Corporation. www.richtek.com 9 RT9067 Four-Layer PCB SOT-89-5 SOT-23-5 Figure 1. Derating Curve of Maximum Power Dissipation Copyright © 2016 Richtek Technology Corporation. All rights reserved. www.richtek.com 10 is a registered trademark of Richtek Technology Corporation. DS9067-05 February 2016 RT9067 Outline Dimension Copyright © 2016 Richtek Technology Corporation. All rights reserved. DS9067-05 February 2016 is a registered trademark of Richtek Technology Corporation. www.richtek.com 11 RT9067 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. Copyright © 2016 Richtek Technology Corporation. All rights reserved. www.richtek.com 12 is a registered trademark of Richtek Technology Corporation. DS9067-05 February 2016