SE8117T15-HF-1.5V

Description Features  Low Dropout Performance.  Low Quiescent Current：2.7mA（Typ.）  Guaranteed 1A Output Current.  Wide Input Supply Voltage Range.  Stable operation without Cin and Cout. In addition, SE8117 is designed to be stable under  Over-temperature and Over-current Protection. conditions where Cin and Cout are not present.  Fixed or Adjustable Output Voltage. However, it is recommended to include Cin and  Available in SOT-223 and TO252 Packages. Cout in the system design as this will speed up the  RoHS Compliant The SE8117 series of high performance low dropout voltage regulators are designed for applications that require efficient conversion and fast transient response. transient response and increase the PSRR rating. SE8117 is characterized under Junction Pin Configuration Temperature from -40°C to +125°C. Application  Active SCSI Terminators.  High Efficiency Linear Regulators.  5V to 3.3V Linear Regulators  Motherboard Clock Supplies. Pin Description NO. Pin Name Pin Function Description 1 ADJ/GND A resistor divider from this pin to the VOUT pin and ground sets the output voltage (Ground only for Fixed-Mode). 2 OUT The output of the regulator. A minimum of 4.7µF capacitor (0.15Ω ≤ ESR ≤ 0.5Ω) must be connected from this pin to ground to insure stability. 3 IN The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input voltage does not sag below the minimum dropout voltage during the load transient response. This pin must always be 1.3V higher than VOUT in order for the device to regulate properly. A minimum of 4.7µF capacitor (0.15Ω ≤ ESR ≤0.5Ω) must be connected from this pin to ground to insure stability. Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 1 Ordering Information Ordering No. Package SE8117T15-HF-1.5V SOT-223 SE8117T18-HF-1.8V SOT-223 SE8117T25-HF-2.5V SOT-223 SE8117T33-HF-3.3V SOT-223 SE8117T50-HF-5.0V SOT-223 SE8117TA-HF-ADJ SOT-223 SE8117J33-LF-3.3V TO-252 SE8117JA-LF-ADJ TO-252 Marking Shipping SE8117T15 Tape and Reel YYWW 1000/2500 SE8117T18 Tape and Reel YYWW 1000/2500 SE8117T25 Tape and Reel YYWW 1000/2500 SE8117T33 Tape and Reel YYWW 1000/2500 SE8117T50 Tape and Reel YYWW 1000/2500 SE8117TA Tape and Reel YYWW 1000/2500 SE8117J33 Tape and Reel YYWW 2500 SE8117JA Tape and Reel YYWW 2500 Absolute Maximum Rating Symbol Parameter Maximum Units 15 120 -40 to 125 -40 to 150 V °C/W °C °C Lead Temperature (Soldering 10 Sec) 260 °C Maximum Junction Temperature 150 °C VIN θJA TJ TSTG Input Supply Voltage Thermal Resistance Junction to Ambient (SOT-223) Operating Junction Temperature Range Storage Temperature Range TLEAD TMJ Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 2 Electrical Characteristic VIN,MAX ≤ 9V, VIN,MIN – VOUT = 2V, IOUT = 10mA, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified. Symbol Parameter VO Output Voltage Test Condition Min Typ Max SE8117T-15 1.470 1.5 1.530 SE8117T-18 1.764 1.8 1.836 SE8117T-25 2.450 2.5 2.550 SE8117T-33 3.234 3.3 3.366 SE8117T-50 4.900 5.0 5.100 Units V VREF Reference Voltage (Adj. Voltage Version) (VIN - VOUT) = 1.5V IOUT = 10mA (-2%) VSR Line Regulation VOUT + 1.5V < VIN < 9V IOUT = 10mA -- 0.3 -- %/V VLR Load Regulation (1) (VIN - VOUT) = 2.0V 10mA ≤ IOUT ≤ 1A -- 0.0001 -- %/mA IQ Quiescent Current Fixed Output Version -- 2.7 5 mA IADJ (IGND) Adjust Pin Current （GND Current） -- 50 120 μA ∆IADJ Adjust Pin Current Change VOUT + 1.5V < VIN < 9V -- 0.2 5 μA VD Dropout Voltage (1) (2) IOUT = 1A -- 1.25 1.3 V IO Minimum Load Current -- 0.4 5 mA ICL Current Limit (1) 1 1.35 -- A TC Temperature Coefficient -- 30 -- ppm/℃ /V OTP Thermal Protection VIN=9V, IOUT=10mA -- 175 -- °C VN RMS Output Noise TA = 25°C, 10Hz ≤ f ≤ 10kHz -- 0.003 -- %VO RA Ripple Rejection Ratio f = 120Hz, COUT = 22μF (Tantalum), (VIN - VOUT) = 3V, IOUT = 10mA -- 60 -- dB 1.250 (+2%) V Notes: 1. Low duty cycle pulse testing with which TJ remains unchanged. 2. The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage. It is measured when the output voltage has dropped to 98% from the nominal value obtained at VIN = VOUT +2V. Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 3 Typical Application Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 4 Application Hints The typical Linear regulator would require Thermal Considerations external capacitors to ensure stability. However, It is important that the thermal limit of the package SE8117 is designed in such a way that these is not exceeded. The SE8117 has built-in external capacitor can be omitted if the PCB thermal protection. When the thermal limit is layout is tight and system noise is not very high. exceeded, the IC will enter protection, and VOUT For better transient and PSRR performance, the will be pulled to ground. The power dissipation Input for a given application can be calculated as and Output capacitors are still following: recommended. The power dissipation (PD) is PD = IOUT * [VIN – VOUT] Input Capacitor An input capacitor of 10μF is recommended. Ceramic or Tantalum can be used. The value The thermal limit of the package is then limited to PD(MAX) = [TJ – TA]/ΘJA where TJ is the junction can be increased without upper limit. temperature, TA is the ambient temperature, and ΘJA is around 120°C/W for SE8117. SE8117 is Output Capacitor designed to enter thermal protection at 125°C. An output capacitor of 22uF is recommended for For example, if TA is 25°C then the maximum PD better transient and PSRR performance. is limited to about 0.83W. It In other words, if should be placed no more than 1 cm away from IOUT(MAX) = 500mA, then [VIN – VOUT] can not the VOUT pin, and connected directly between exceed 1.66V. (Ref. SOT223 without heat sink.) VOUT and GND pins. The value may be increased without upper limit. Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 5 Typical Performance Characteristics Reference Voltage vs Junction Temperature Output Voltage vs Load Current 1.251 1.7872 1.787 1.249 Output Voltage (V) Reference Voltage (V) 1.250 1.248 1.247 1.246 1.245 1.7868 1.7866 1.7864 1.7862 1.244 25 40 55 70 85 100 115 130 1.786 145 1 Junction Temperature (C) 100 1000 Load Current (mA) Dropout Voltage vs Load Current PSRR vs Frequency 1.5 70.0 1.4 60.0 1.3 50.0 PSRR(dB) Dropout Voltage (V) 10 1.2 1.1 40.0 30.0 20.0 1 10.0 0.9 0.0 1 10 100 Load Current (mA) Dropout Volatge VS Oueput Current 1000 100 1000 10000 Frequency(Hz) Adjus Pin Current VS Temperature Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 6 100000 Typical Performance Characteristics Line Transient Response Short Transient Response Load Transient Response Short Circuit Start-up Transient Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 7 Outline Drawing for SOT-223 Outline Drawing for TO252 Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 8 Customer Support Seaward Electronics Incorporated – China Section B, 2nd Floor, ShangDi Scientific Office Complex, #22 XinXi Road Haidian District, Beijing 100085, China Tel: 86-10-8289-5700/01/05 Fax: 86-10-8289-5706 Seaward Electronics Corporation – Taiwan 2F, #181, Sec. 3, Minquan East Rd, Taipei, Taiwan R.O.C Tel: 886-2-2712-0307 Fax: 886-2-2712-0191 Seaward Electronics Incorporated – North America 1512 Centre Pointe Dr. Milpitas, CA95035, USA Tel: 1-408-821-6600 Last Updated - 4/21/2020 Revision 4/21/2020 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 9