SE8117B

Description The SE8117B series of high performance low dropout voltage regulators are designed for applications that require efficient conversion and fast transient response. In addition, SE8117B is designed to be stable under conditions where Cin and Cout are not present. However, it is recommended to include Cin and Cout in the system design as this will increase the PSRR rating. SE8117B is characterized under Junction Temperature from -40°C to +130°C. Features Low Dropout Performance. Low Quiescent Current：3mA（Typ.） Guaranteed 1A Output Current. Wide Input Supply Voltage Range. Stable operation without Cin and Cout. Over-temperature and Over-current Protection. Fixed or Adjustable Output Voltage. Rugged 2KV ESD withstand capability. Available in SOT-223 and TO252 Packages. RoHS Compliant and 100% Lead (Pb)-Free Application Pin Configuration Active SCSI Terminators. High Efficiency Linear Regulators. 5V to 3.3V Linear Regulators Motherboard Clock Supplies. Ordering Information Device Marking Information SE8117TXXLF SE8117TALF Package VOUT Fixed output voltages; XX denotes voltage options (1.5V,1.8V, 2.5V,3.3V and 5.0V). Adjustable output voltage. SE8117BTXXLF SE8117BTALF SOT-223 TO-252 (Lead-free) Absolute Maximum Rating Symbol VIN θJA TJ TSTG TLEAD Parameter Input Supply Voltage Thermal Resistance Junction to Ambient (SOT-223) Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering 10 Sec) Maximum 9 60 -40 to 130 -40 to 150 260 Units V °C/W °C °C °C Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 1 Electrical Characteristic VIN,MAX ≤ 8V, VIN,MIN – VOUT = 1.5V, IOUT = 10mA, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified. Symbol Parameter Test Condition SE8117BT15 SE8117BT18 VO Output Voltage (1) SE8117BT25 SE8117BT33 SE8117BT50 VREF VSR VLR IQ IADJ ∆IADJ VD IO ICL TC OTP VN RA Notes: 1. Low duty cycle pulse testing with which TJ remains unchanged. 2. The IQ of SE8117BT15 is 1.2mA(Typ.) Reference Voltage (Adj. Voltage Version) Line Regulation (1) Load Regulation (1) Quiescent Current(2) Adjust Pin Current Adjust Pin Current Change Dropout Voltage (3) Minimum Load Current Current Limit Temperature Coefficient Thermal Protection RMS Output Noise Ripple Rejection Ratio TA = 25°C, 10Hz ≤ f ≤ 10kHz f = 120Hz, COUT = 22μF (Tantalum), (VIN - VOUT) = 3V, IOUT = 100mA VOUT + 1.5V < VIN < 8V 10mA ≤ IOUT ≤ 1A IOUT = 1A (1) Min 1.470 1.764 2.450 3.234 4.900 (-2%) ------------- Typ 1.5 1.8 2.5 3.3 5.0 Max 1.530 1.836 2.550 3.366 5.100 Units V (VIN - VOUT) = 1.5V IOUT = 10mA VOUT + 1.5V < VIN < 8V IOUT = 10mA (VIN - VOUT) = 1.5V 10mA ≤ IOUT ≤ 1A Fixed Output Version 1.250 (+2%) 0.3 0.5 3 65 14 1.3 0.4 1.8 0.07 175 0.003 57 ------------- V % % mA μA μA V mA A %/°C °C %VO dB 3. 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 98% from the nominal value obtained at VIN = VOUT +1.5V. Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 2 Typical Application Adjustable Voltage Regulator VIN >= 3.0V 3 SE8117BTA 2 VOUT = 1.5V VREF CIN 10uF 1 R1 124 Ohm COUT 22uF IADJ R2 24.9 Ohm VOUT = VREF (1 + R2 ) + IADJR 2 R1 Fixed Voltage Regulator VIN >= 4.8V 3 SE8117BT33 2 VOUT = 3.3V CIN 10uF 1 IQ COUT 22uF Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 3 Typical Performance Characteristics Reference Voltage vs Junction Temperature 1250 1245 1240 1235 1230 1225 1220 -25 0 25 50 75 100 125 150 Junction Temperature (C) Dropout Voltage vs. Output Current 1.17 Dropout Voltage (V) 1.15 Reference Voltage (mV) 1.11 1.09 1.07 1.05 1.03 0 200 400 600 800 Output Current(mA) 1000 PSRR (dB) 1.13 70 60 50 40 30 20 10 0 0.001 PSRR IOUT = 100mA 0.01 0.1 1 Frequency (kHz) Load Transients 10 Line Transients VIN = 4.5V – 5.5 V CIN = 0.1μF, COUT = 1μF 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 0 200 Load Regulation SE8117B_3.3V SE8117B_1.8V 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 3 4 5 Line Regulation V o u t (V ) V o u t (V ) SE8117B_3.3 SE8117B_1.8 400 600 Iload (mA) 800 1000 6 7 8 9 Vin (V) 10 11 12 Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 4 Typical Performance Characteristics Short Transient Response Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 5 Outline Drawing for SOT-223 Outline Drawing for TO252 Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 6 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 - 7/28/2008 Revision 7/28/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com • Page 7