SL9350L33SE

SL9350 Series Low Dropout Regulators Description SOT-23 SL9350 Series are a high accuracy, low noise, high speed, low dropout 3.VIN CMOS Linear regulator with high ripple rejection and fast discharge function. The device offers a new level of cost effective performance in cellular phones, surveillance system, Bluetooth, wireless and other portable electronic devices. SL9350 Series can provide product selections of output value in the range 1.GND of 1.2V~3.6V by every 0.1V step. The current limiter's fold-back circuit also operates as a short circuit 2.VOUT SOT-23-3 protection and an output current limiter at the output pin. 3.VIN The SL9350 Series are available in standard SOT-23、SOT-89、SOT-23-3 SOT23-5 and DFN1x1-4L packages. Standard products are Pb-free and Halogen-free. 2.VOUT 1.GND Features ⚫ Maximum Output Current: 400mA(@VIN-VOUT=0.5V) SOT-89 ⚫ Output Voltage Range: 1.2V~3.6V(customized by every 0.1V step) 2.VIN ⚫ Low Quiescent Current: 50uA(Typ.) ⚫ Low Dropout Voltage: 220mV@IOUT=200mA ⚫ 0.01%/V Line Regulation ⚫ 75dB PSRR @ 1KHz ⚫ Standby Current: < 1μA ⚫ VOUT fast discharge 1.GND 2.VIN 3.VOUT Applications SOT-23-5 ⚫ Digital cameras 4. NC 5. VOUT ⚫ Cellphones ⚫ Bluetooth and wireless handsets ⚫ Other portable electronic devices Marking Code 1.SOT 9350 -XX XX:Output Voltage e.g. 3.0:3.0V 3.3:3.3V www.slkormicro.com 1.VIN 2.DFN 2.GND 3.EN DFN1x1-4L Bottom View AXX 3.EN 2.GND GND A：Product Code XX:Output Voltage e.g. 30:3.0V 33:3.3V 1.VOUT 1 4.VIN Rev.1 -- 11 December 2017 SL9350 Series Functional Pin Description Pin Name Pin Function VIN Power Input Voltage GND Ground EN Chip Enable (Active High). Note that this pin is high impedance NC NO Connected VOUT Output Voltage Ordering Information SL9350 Package Type SA:SOT-23 SQ:SOT-89 SC:SOT-23-3 SE:SOT-23-5 DE:DFN1x1-4L Output Voltage 12 : 1.2V 15 : 1.5V 22 : 2.2V 25 : 2.5V 27 : 2.7V 28 : 2.8V 30 : 3.0V 33 : 3.3V 18 : 1.8V 26 : 2.6V 29 : 2.9V 36 : 3.6V Output current tap L : 300mA Function Block Diagram VOUT VIN Current Limit VREF EN Enable Control GND www.slkormicro.com 2 Rev.1 -- 11 December 2017 SL9350 Series Absolute Maximum Ratings Note1 Ratings at 25℃ ambient temperature unless otherwise specified. Parameter Value Unit -0.3~8 V 400 mA SOT-23 400 mW SOT-89 600 mW SOT-23-3 450 mW SOT-23-5 450 mW DFN1x1-4L 550 mW SOT-23 250 °C/W SOT-89 165 °C/W SOT-23-3 220 °C/W SOT-23-5 220 °C/W DFN1x1-4L 180 °C/W Junction Temperature -40 ~ +125 °C Operating Ambient Temperature -40 ~ +85 °C Storage Temperature Range -55~ +150 °C Lead Temperature&Time 260°C,10S -- Maximum Input Voltage Output Current Power Dissipation Thermal Resistance,Junction-to-Ambient Note1: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect. Recommended Operating Conditions Parameter Supply Voltage Maximum Output Current Operating Ambient Temperature Value Unit 2.5~6.5 V 300 mA -40 ~ +85 °C Typical Application Circuit VIN 1 5 4.7uF VOUT 4.7uF 2 ON 3 4 OFF www.slkormicro.com 3 Rev.1 -- 11 December 2017 SL9350 Series Electrical Characteristics VIN=VOUT+1V, TA=25℃ , unless otherwise noted.) Parameter Input Voltage Symbol Test Conditions Min. Typ. Max. Unit 2.5 -- 6.5 V -3 -- +3 % VOUT ≥1.8V, IOUT=1mA -2 -- +2 % VIN=5V, IOUT=0mA -- 50 -- μA VOUT≥2.5V, IOUT=200mA -- 220 250 mV VOUT≥2.5V, IOUT=300mA -- 320 350 mV VIN=2.7~5.5V, IOUT=1mA -- 0.01 0.15 %/V -- 40 70 mV -- 100 -- mA VIN VOUT 1.8V, IOUT=1~300mA VOUT≤1.8V, IOUT=1~200mA VEN=VIN, VOUT Short to GND with 1Ω ILIMIT VIN=VOUT+1V -- 360 -- mA IStandby VEN=0 -- -- 1 μA -- 75 -- dB -- 45 -- dB VIN=5VDC+0.5VP-P Power Supply Rejection Rate PSRR f=1KHz, IOUT=10mA VIN=5VDC+0.5VP-P f=1MHz, IOUT=10mA EN Logic High Voltage VENH VIN=5.5V, IOUT=1mA 1.2 -- VIN V EN Logic Low Voltage VENlL VIN=5.5V, VOUT=0V -- -- 0.4 V EN Input Current IEN VEN= 0~5.5V -- -- 1.0 μA Output Noise Voltage eN 10Hz to 100KHz, COUT=1μF -- 100 -- μVRMS Output Discharge Resistance RDIS VIN=5.0V, VEN= 0V -- 160 -- Ω www.slkormicro.com 4 Rev.1 -- 11 December 2017 SL9350 Series Typical Electrical Curves 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 60 IQ Quiescent Current (μA) IQ Quiescent Current (μA) CIN=4.7uF, COUT=4.7uF, VIN=4.3V, VOUT=3.3V TA=25°C, Package is SOT-23-5(unless otherwise noted) 0 1 2 3 4 5 6 50 40 30 20 10 0 7 -40 10 VOUT Output Voltage (V) VOUT Output Voltage (V) 160 3.4 3.5 3 2.5 2 1.5 1 Io=1mA 0.5 0 0 1 2 3 4 5 3.35 3.3 3.25 3.2 3.15 3.1 3.05 3 6 -40 10 4 VOUT Output Voltage (V) 3 VOUT=3.3V 2.5 Package: SOT-23-5 2 1.5 1 Vin=Ven=4.3V 0.5 160 Vin=Ven=5V 0 100 200 300 1.2 1 0.8 VOUT=1.2V 0.6 Package: SOT-23-5 0.4 Vin=Ven=2.5V 0.2 0 400 Vin=Ven=5V 0 100 200 300 400 500 IOUT Output Current (mA) IOUT Output Current (mA) 2.5 VOUT Output Voltage (V) 4 3.5 3 2.5 VIN=4.3V 2 VIN=5.0V 1.5 VIN=5.3V 1 VOUT=3.3V Package:DFN1x1-4L 0.5 0 110 1.4 3.5 0 60 T Temperature (℃) VIN Input Voltage (V) VOUT Output Voltage (V) 110 T Temperature (℃) VIN Input Voltage (V) VOUT Output Voltage (V) 60 0 100 200 300 VIN=6.0V VIN=6.5V 400 VIN=2.8V VIN=3.8V 1.5 VIN=4.0V 1 VIN=5.0V 0.5 0 VOUT=1.8V Package:DFN1x1-4L 0 100 200 300 VIN=6.0V VIN=6.5V 400 IOUT Output Current (mA) IOUT Output Current (mA) www.slkormicro.com 2 5 Rev.1 -- 11 December 2017 SL9350 Series 600 ILIMIT Current Limit (mA) ILIMIT Current Limit (mA) 600 500 400 300 200 VOUT=3.3V 100 0 3.5 4 4.5 PSRR Power Supply Rejection Rate (dB) VDrop Dropout Voltage (mV) 300 250 200 150 100 50 50 100 150 200 300 200 VOUT=1.8V 100 3.5 www.slkormicro.com 4.5 5 250 300 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 Io=10mA 10.0 0.0 0.01 IOUT Output Current (mA) EN ON / OFF VEN=0V to 4.5V 4 VIN Input Voltage (V) 350 0 400 0 5 VIN Input Voltage (V) 0 500 0.1 1 10 100 1000 f Frequency (KHz) IOUT=10mA VEN=4.5V to 0V EN: 1V/div EN: 1V/div VIN: 1V/div VIN: 1V/div VOUT: 1V/div VOUT: 1V/div 6 IOUT=10mA Rev.1 -- 11 December 2017 SL9350 Series Power ON / OFF VIN=0V to 4.5V Line Transient VIN=4V to 5V IOUT=10mA VIN=4.5V to 0V VIN: 1V/div VIN: 1V/div VOUT: 1V/div VOUT: 1V/div IOUT=10mA VIN=5V to 4V VIN: 1V/div VIN: 1V/div VOUT: 100mV/ VOUT: 100mV/ div div Load Transient CH1: IOUT CH2: VIN CH3: VOUT VIN=4.3V, VOUT=3.3V IOUT=1mA to 50mA VIN=4.3V, VOUT = 3.3V Cin: 4.7uF, Co: 1uF www.slkormicro.com IOUT=10mA IOUT=10mA IOUT=1mA to 100mA Cin: 4.7uF, Co: 1uF 7 Rev.1 -- 11 December 2017 SL9350 Series VIN=4.3V, VOUT = 3.3V IOUT=1mA to 200mA VIN=4.3V, VOUT = 3.3V Cin: 4.7uF, Co: 1uF Cin: 4.7uF, Co: 1uF VIN=4.3V, VOUT = 3.3V IOUT=1mA to 200mA VIN=4.3V, VOUT = 3.3V IOUT=1mA to 300mA VIN=3.3V, VOUT = 1.2V IOUT=1mA to 300mA VIN=5V, VOUT=1.2V Cin: 1uF, Co: 1uF www.slkormicro.com IOUT=1mA to 300mA Cin: 1uF, Co: 1uF Cin: 1uF, Co: 1uF VIN=4V, VOUT=1.2V IOUT=1mA to 300mA Cin: 4.7uF, Co: 4.7uF Cin: 4.7uF, Co: 4.7uF VIN=2.8V, VOUT = 1.2V IOUT=1mA to 300mA IOUT=1mA to 300mA Cin: 1uF, Co: 1uF 8 Rev.1 -- 11 December 2017 SL9350 Series Function Descriptions A minimum of 1uF capacitor must be connected from Vout to ground to insure stability. Input capacitor of 1uF is recommended to ensure the input voltage does not sag below the minimum dropout voltage during load transient event. Vin pin must always be dropout voltage higher than Vout in order for the device to regulate properly. Application Information SL9350 Series requires input and output decoupling capacitors. The device is specifically designed for portable applications requiring minimum board space and smallest components. These capacitors must be correctly selected for good performance. Please note that linear regulators with a low dropout voltage have high internal loop gains, which require care in guarding against oscillation caused by insufficient decoupling capacitors. Capacitor Selection Normally, use a 1μF capacitor on the input and a 1μF capacitor on the output of the SL9350 Series. Larger input capacitor values and lower ESR (X5R, X7R) provide better supply noise rejection and transient response. A higher value output capacitor (4.7μF) may be necessary if large, fast transients are anticipated and the device is located several inches from the power source. Input-Output (Dropout) Voltage A regulator's minimum input-to-output voltage differential (dropout voltage) determines the lowest usable supply voltage. In battery-powered systems, this determines the useful end-of-life battery voltage. Because the device uses a PMOS, its dropout voltage is a function of drain to source on resistance, RDS (on), multiplied by the load current: VDROP = VIN -VOUT= RDS (on) x IOUT Current Limit and Thermal Shutdown Protection In order to prevent overloading or thermal condition from damaging the device, SL9350 Series has internal thermal and current limiting functions designed to protect the device. It will rapidly shut off PMOS pass element during overloading or over temperature condition. Thermal Considerations The SL9350 Series can deliver a current of up to 300mA over the full operating junction temperature range. However, the maximum output current must be controlled at higher ambient temperature to ensure the junction temperature does not exceed 150°C. With all possible conditions, the junction temperature must be within the range specified under operating conditions. Power dissipation can be calculated based on the output current and the voltage drop across regulator. PD = (VIN - VOUT) x IOUT The final operating junction temperature for any set of conditions can be estimated by the following thermal equation: PD (max) = (Tj (max) - Ta) / RθJA Where Tj (max) is the maximum junction temperature of the die (150°C) and Ta is the maximum ambient temperature. PCB Layout An input capacitance of ≅4 .7μF is required between the SL9350 Series input pin and ground (the amount of the capacitance may be increased without limit), this capacitor must be located a distance of not more than 1cm from the input and return to a clean analog ground. Input capacitor can filter out the input voltage spikes caused by the surge current due to the inductive effect of the package pin and the printed circuit board’s routing wire. Otherwise, the actual voltage at the Vin pin may exceed the absolute maximum rating. The output capacitor also must be located a distance of not more than 1cm from output to a clean analog ground. Because it can filter out the output spike caused by the surge current due to the inductive effect of the package pin and the printed circuit board’s routing wire. www.slkormicro.com 9 Rev.1 -- 11 December 2017 SL9350 Series Package Outline SOT-23 Dimensions in mm www.slkormicro.com 10 Rev.1 -- 11 December 2017 SL9350 Series Package Outline SOT-89 Dimensions in mm www.slkormicro.com 11 Rev.1 -- 11 December 2017 SL9350 Series Package Outline SOT-23-3 Dimensions in mm 1.6 2.8 ±0.1 10 0.127 +0.05/-0.02 ±0.1 ±0.1 2.92 12 R0.15MAX 0.95±0.1 0.35±0.05 R0.15MAX 0.06 12 ± 0.05 0.65 ±0.1 1.1 ±0.1 10 www.slkormicro.com 12 Rev.1 -- 11 December 2017 SL9350 Series Package Outline SOT-23-5 Dimensions in mm 2.92 ±0.1 1.6 2.8 ±0.1 ± 0.1 10 0.127 +0.05/-0.02 1.9±0.1 12 R0.15MAX 0.95 ±0.1 0.35±0.05 R0.15MAX 0.06 12 ± 0.05 0.65 ±0.1 1.1 ±0.1 10 www.slkormicro.com 13 Rev.1 -- 11 December 2017 SL9350 Series Package Outline DFN1x1-4L Dimensions in mm 0.625 BSC 1±0.05 0.25±0.05 1±0.05 05 0. 0. 5± 0. 05 5± 0. PIN1 PIN 1 0.225±0.05 TOP VIEW 0.125 BSC +0.05 0.5±0.05 BOTTOM VIEW SIDE VIEW www.slkormicro.com 14 Rev.1 -- 11 December 2017