RT9193-25GF

® RT9193 300mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator General Description Features The RT9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9193 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The RT9193 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The RT9193 consumes less than 0.01μA in shutdown mode and has fast turn-on time less than 50μs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. Available in the SC-70-5, SOT-23-5, TSOT-23-5, WDFN-6L 2x2 and MSOP-8 packages.  Ultra Low Noise for RF Application  Ultra Fast Response in Line/Load Transient μs) Quick Start-Up (Typically 50μ 2.8V IOUT = 300mA, VOUT > 2.8V mV Line Regulation VLINE VIN = (VOUT + 1V) to 5.5V, Load Regulation VLOAD 1mA  IOUT  300mA -- -- 0.6 % Standby Current ISTBY VEN = GND, Shutdown -- 0.01 1 A Copyright © 2022 Richtek Technology Corporation. All rights reserved. DS9193-18 June 2022 IOUT = 1mA is a registered trademark of Richtek Technology Corporation. www.richtek.com 3 RT9193 Parameter Symbol EN Input Bias Current f = 10kHz Unit nA 0 100 VIL VIN = 3V to 5.5V, Shutdown -- -- 0.4 1.2 -- -- -- 100 -- -- 70 -- -- 50 -- Logic-High VIH Rejection Rate Max -- Voltage f = 100Hz Typ VEN = GND or VIN Logic-Low Power Supply Min IIBSD EN Threshold Output Noise Voltage Test Conditions VIN = 3V to 5.5V, Start-Up eNO 10Hz to 100kHz, IOUT = 200mA COUT = 1F PSRR COUT = 1F, IOUT = 10mA V VRMS dB Thermal Shutdown Temperature TSD -- 165 -- C Thermal Shutdown Temperature TSD -- 30 -- C 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 low effective thermal conductivity single-layer test board per JEDEC 51-3. Note 3. Devices are ESD sensitive. Handling precautions are recommended. Note 4. The device is not guaranteed to function outside its operating conditions. Note 5. The dropout voltage is defined as VIN − VOUT, which is measured when VOUT is VOUT(NORMAL) − 100mV. Copyright © 2022 Richtek Technology Corporation. All rights reserved. www.richtek.com 4 is a registered trademark of Richtek Technology Corporation. DS9193-18 June 2022 RT9193 Typical Operating Characteristics Quiescent Current vs. Temperature Output Voltage vs. Temperature 1.8 1.6 1.5 1.4 RT9193-15xU5 VIN = 3.3V CIN = COUT = 1μF X7R 90 Quiescent Current (µA) RT9193-15xU5 VIN = 3.3V CIN = COUT = 1μF X7R 1.7 Output Voltage (V) 95 85 80 75 70 1.3 65 60 1.2 -50 -25 0 25 50 75 100 -50 125 -25 0 25 20 TJ = 125°C 0 200 PSRR (dB) Dropout Voltage (mV) 125 VIN = 4V to 5V CIN = COUT = 1μF, X7R RT9193-33xB CIN = COUT = 1μF TJ = 25°C 150 TJ = -40°C 100 -20 -40 ILoad = 100mA -60 50 ILoad = 10mA -80 0 0 0.05 0.1 0.15 0.2 0.25 10 0.01 0.3 100 0.1 1K 1 10K 10 100K 100 Load Current (A) Frequency (Hz) (kHz) EN Pin Shutdown Threshold vs. Temperature EN Pin Shutdown Response 1.50 RT9193-15xU5 VIN = 3.3V CIN = COUT = 1μF X7R EN Pin Voltage (V) 1.75 1.25 Output Voltage (V) EN Pin Shutdown Threshold (V)1 100 PSRR Dropout Voltage vs. Load Current 250 75 Temperature (°C) Temperature (C) 300 50 1.00 0.75 10 VIN = 5V CIN = COUT = 1μF 1M 1000 RT9193-28xU5 No Load 5 0 2 1 0 0.50 -50 -25 0 25 50 75 100 125 Time (500μs/Div) Temperature (°C) Copyright © 2022 Richtek Technology Corporation. All rights reserved. DS9193-18 June 2022 is a registered trademark of Richtek Technology Corporation. www.richtek.com 5 RT9193 Load Transient Response ILOAD = 1mA to 60mA 50 Output Voltage Deviation (mV) 0 20 0 -20 0 50 0 -50 Line Transient Response Line Transient Response RT9193-25xB ILOAD = 1mA 5 4 10 0 -10 6 VIN = 4V to 5V COUT = 1μF RT9193-25xB ILOAD = 100mA 5 4 10 0 -10 Time (50μs/Div) Time (100μs/Div) Noise Noise RT9193-30xB ILOAD = 50mA VIN = 4.5V CIN = COUT = 1μF, X7R VIN = 4.5V CIN = COUT = 1μF, X7R 200 200 100 100 Noise (μV) Noise (μV) 200 Time (500μs/Div) VIN = 4V to 5V COUT = 1μF 0 -100 -200 RT9193-15xU5 ILOAD = 50mA 0 -100 -200 f = 10Hz to 100kHz Time (10ms/Div) Copyright © 2022 Richtek Technology Corporation. All rights reserved. www.richtek.com 6 ILOAD = 1mA to 250mA VIN = 5V, VOUT = 2.8V 400 CIN = COUT = 1μF Time (500μs/Div) Input Voltage Deviation (V) 6 Load Current (mA) VIN = 5V, VOUT = 2.8V 100 CIN = COUT = 1μF Output Voltage Deviation (mV) Output Voltage Deviation (mV) Input Voltage Deviation (V) Output Voltage Deviation (mV) Load Current (mA) Load Transient Response f = 10Hz to 100kHz Time (10ms/Div) is a registered trademark of Richtek Technology Corporation. DS9193-18 June 2022 RT9193 Output Voltage (V) EN Pin Voltage (V) Start Up 10 VIN = 5V CIN = COUT = 1μF RT9193-28xU5 No Load 5 0 2 1 0 Time (10μs/Div) Copyright © 2022 Richtek Technology Corporation. All rights reserved. DS9193-18 June 2022 is a registered trademark of Richtek Technology Corporation. www.richtek.com 7 RT9193 Applications Information Like any low dropout regulator, the external capacitors used with the RT9193 must be carefully selected for regulator stability and performance. Using a capacitor whose value is >1μF on the RT9193 input and the amount of capacitance can be increased without limit. The input capacitor must be located a distance of not more than 0.5 inch from the input pin of the IC and returned to a clean analog ground. Any good quality ceramic or tantalum can be used for this capacitor. The capacitor with larger value and lower ESR (equivalent series resistance) provides better PSRR and line-transient response. The output capacitor must meet both requirements for minimum amount of capacitance and ESR in all LDOs application. The RT9193 is designed specifically to work with low ESR ceramic output capacitor in space-saving and performance consideration. Using a ceramic capacitor whose value is at least 1μF with ESR is >1mΩ on the RT9193 output ensures stability. The RT9193 still works well with output capacitor of other types due to the wide stable ESR range. Figure 1 shows the curves of allowable ESR range as a function of load current for various output capacitor values. Output capacitor of larger capacitance can reduce noise and improve load transient response, stability, and PSRR. The output capacitor should be located not more than 0.5 inch from the VOUT pin of the RT9193 and returned to a clean analog ground. Region of Stable COUT ESR vs. Load Current 100 Connecting a 22nF between the BP pin and GND pin significantly reduces noise on the regulator output, it is critical that the capacitor connection between the BP pin and GND pin be direct and PCB traces should be as short as possible. There is a relationship between the bypass capacitor value and the LDO regulator turn on time. DC leakage on this pin can affect the LDO regulator output noise and voltage regulation performance. Enable Function The RT9193 features an LDO regulator enable/disable function. To assure the LDO regulator will switch on, the EN turn on control level must be greater than 1.2 volts. The LDO regulator will go into the shutdown mode when the voltage on the EN pin falls below 0.4 volts. For to protecting the system, the RT9193 have a quick-discharge function. If the enable function is not needed in a specific application, it may be tied to VIN to keep the LDO regulator in a continuously on state. Thermal Considerations Thermal protection limits power dissipation in RT9193. When the operation junction temperature exceeds 165°C, the OTP circuit starts the thermal shutdown function turn the pass element off. The pass element turn on again after the junction temperature cools by 30°C. For continue operation, do not exceed absolute maximum operation junction temperature 125°C. The power dissipation definition in device is : Instable 10 COUT ESR (Ω) Bypass Capacitor and Low Noise PD = (VIN − VOUT) x IOUT + VIN x IQ 1 The maximum power dissipation depends on the thermal resistance of IC package, PCB layout, the rate of surroundings airflow and temperature difference between junction to ambient. The maximum power dissipation can be calculated by following formula : Stable 0.1 0.01 RT9193-15xU5 CIN = COUT = 1μF, X7R PD(MAX) = ( TJ(MAX) − TA ) /θJA 0.001 0 50 100 150 200 250 Load Current (mA) Figure 1 Copyright © 2022 Richtek Technology Corporation. All rights reserved. www.richtek.com 8 300 Where T J(MAX) is the maximum operation junction temperature 125°C, TA is the ambient temperature and the θJA is the junction to ambient thermal resistance. is a registered trademark of Richtek Technology Corporation. DS9193-18 June 2022 RT9193 For recommended operating conditions specification of RT9193, where T J(MAX) is the maximum junction temperature of the die (125°C) and TA is the maximum ambient temperature. The junction to ambient thermal resistance (θJA is layout dependent) for TSOT-23-5/ SOT-23-5 package is 250°C/W, SC-70-5 package is 333°C/W, WDFN-6L 2x2 package is 165°C/W and MSOP8 package is 160°C/W on standard JEDEC 51-3 thermal test board. The maximum power dissipation at TA = 25°C can be calculated by following formula : PD(MAX) = (125°C − 25°C) / 333 = 300mW for SC-70-5 PD(MAX) = (125°C − 25°C) / 250 = 400mW for TSOT-23-5/SOT-23-5 PD(MAX) = (125°C − 25°C) / 165 = 606mW for WDFN-6L 2x2 PD(MAX) = (125°C −25°C) / 160 = 625mW for MSOP-8 The maximum power dissipation depends on operating ambient temperature for fixed T J(MAX) and thermal resistance θJA. For RT9193 packages, the Figure 2 of derating curves allows the designer to see the effect of rising ambient temperature on the maximum power allowed. 700 MSOP-8 WDFN-6L 2x2 Power Dissipation (mW) 600 500 TSOT-23-5/ SOT-23-5 400 SC 70-5 300 200 100 0 0 25 50 75 100 125 Ambient Temperature (°C) Figure 2. Derating Curve for Packages Copyright © 2022 Richtek Technology Corporation. All rights reserved. DS9193-18 June 2022 is a registered trademark of Richtek Technology Corporation. www.richtek.com 9 RT9193 Outline Dimension H D L B C b A A1 e Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.800 1.100 0.031 0.044 A1 0.000 0.100 0.000 0.004 B 1.150 1.350 0.045 0.054 b 0.150 0.400 0.006 0.016 C 1.800 2.450 0.071 0.096 D 1.800 2.250 0.071 0.089 e 0.650 0.026 H 0.080 0.260 0.003 0.010 L 0.210 0.460 0.008 0.018 SC-70-5 Surface Mount Package Copyright © 2022 Richtek Technology Corporation. All rights reserved. www.richtek.com 10 is a registered trademark of Richtek Technology Corporation. DS9193-18 June 2022 RT9193 H D L B C b A A1 e Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.700 1.000 0.028 0.039 A1 0.000 0.100 0.000 0.004 B 1.397 1.803 0.055 0.071 b 0.300 0.559 0.012 0.022 C 2.591 3.000 0.102 0.118 D 2.692 3.099 0.106 0.122 e 0.838 1.041 0.033 0.041 H 0.080 0.254 0.003 0.010 L 0.300 0.610 0.012 0.024 TSOT-23-5 Surface Mount Package Copyright © 2022 Richtek Technology Corporation. All rights reserved. DS9193-18 June 2022 is a registered trademark of Richtek Technology Corporation. www.richtek.com 11 RT9193 H D L B C b A A1 e 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 0.559 0.014 0.022 C 2.591 2.997 0.102 0.118 D 2.692 3.099 0.106 0.122 e 0.838 1.041 0.033 0.041 H 0.080 0.254 0.003 0.010 L 0.300 0.610 0.012 0.024 SOT-23-5 Surface Mount Package Copyright © 2022 Richtek Technology Corporation. All rights reserved. www.richtek.com 12 is a registered trademark of Richtek Technology Corporation. DS9193-18 June 2022 RT9193 D2 D L E E2 1 e b A A1 SEE DETAIL A 2 1 2 1 A3 DETAIL A Pin #1 ID and Tie Bar Mark Options Note : The configuration of the Pin #1 identifier is optional, but must be located within the zone indicated. Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.700 0.800 0.028 0.031 A1 0.000 0.050 0.000 0.002 A3 0.175 0.250 0.007 0.010 b 0.200 0.350 0.008 0.014 D 1.950 2.050 0.077 0.081 D2 1.000 1.450 0.039 0.057 E 1.950 2.050 0.077 0.081 E2 0.500 0.850 0.020 0.033 e L 0.650 0.300 0.026 0.400 0.012 0.016 W-Type 6L DFN 2x2 Package Copyright © 2022 Richtek Technology Corporation. All rights reserved. DS9193-18 June 2022 is a registered trademark of Richtek Technology Corporation. www.richtek.com 13 RT9193 D L E1 E e A2 A A1 b Dimensions In Millimeters Dimensions In Inches Symbol Min Max Min Max A 0.810 1.100 0.032 0.043 A1 0.000 0.150 0.000 0.006 A2 0.750 0.950 0.030 0.037 b 0.220 0.380 0.009 0.015 D 2.900 3.100 0.114 0.122 e 0.650 0.026 E 4.800 5.000 0.189 0.197 E1 2.900 3.100 0.114 0.122 L 0.400 0.800 0.016 0.031 8-Lead MSOP Plastic 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. www.richtek.com 14 DS9193-18 June 2022