SEAWARD ELECTRONICS INC. 1A Positive Voltage Regulators (Preliminary) Description SE8117 Features The SE8117 series of high performance low dropout voltage regulators are designed for applications that require efficient conversion and fast transient response. ¾ Low Dropout Performance. ¾ Guaranteed 1A Output Current. ¾ Wide Input Supply Voltage Range. ¾ Over-temperature and Over-current Protection. Pin Configuration Tab is Vout 1 2 ¾ Fixed or Adjustable Output Voltage. ¾ Rugged 3KV ESD withstand capability. ¾ Available in SOT-223 Packages. 3 Application Adj/Gnd Out In Front View SOT-223 ¾ Active SCSI Terminators. ¾ High Efficiency Linear Regulators. ¾ 5V to 3.3V Linear Regulators ¾ Motherboard Clock Supplies. Ordering Information VOUT Volts Device Package SE8117TA SOT-223 Output voltage is adjustable. SE8117TXX SOT-223 XX denotes voltage options. Available voltages are 1.5V, 1.8V, 2.5V, 3.0V, and 3.3V. Absolute Maximum Rating Symbol VIN θJC θJA TJ Parameter Input Supply Voltage Thermal Resistance Junction to Case SOT-223 Thermal Resistance Junction to Ambient SOT-223 Operating Junction Temperature Range TSTG Storage Temperature Range TLEAD Lead Temperature (Soldering 10 Sec) Maximum Units 9 V 15 °C/W 156 0 to 125 °C/W °C -40 to 150 °C 260 °C © Seaward Electronics, Inc., 2004. • www.seawardinc.com.cn • Tel: 0086-010-82895700 • Fax: 0086-010-82895706 Room 1605, Building 1, International Pioneering Park, #1 Shangdi XinXi Road • Haidian District, Beijing 100085, China Preliminary and all contents are subject to change without prior notice. 1 SEAWARD ELECTRONICS INC. 1A Positive Voltage Regulators (Preliminary) SE8117 Electrical Characteristic VIN,MAX ≤ 8V, VIN,MIN – VOUT = 1.5V, IOUT = 10mA, CIN = 10µF, COUT = 22µF, TJ = 0 – 125°C, unless otherwise specified. Symbol Parameter Test Condition Min Typ Max Units (+2%) V 1.275 (+2%) V 10mA ≤ IOUT ≤ 1A, TA = 25°C, SE8117T15 VO Output Voltage (1) SE8117T18 SE8117T25 1.5 (-2%) 1.8 2.5 SE8117T30 3.0 SE8117T33 3.3 VREF Reference Voltage (1) (Adj. Voltage Version) 10mA ≤ IOUT ≤ 1A VSR Line Regulation (1) IOUT = 10mA 0.3 % VLR Load Regulation (1) (VIN - VOUT) = 2V 10mA ≤ IOUT ≤ 1A 0.4 % IQ Quiescent Current 9 mA IADJ Adjust Pin Current 48 µA ∆IADJ Adjust Pin Current Change 10mA ≤ IOUT ≤ 1A 0.2 µA VD Dropout Voltage (2) ∆VREF = 1%, IOUT = 1A 1.1 V IO Minimum Load Current 4 mA ICL Current Limit 1.8 A TC Temperature Coefficient 0.07 %/°C OTP Thermal Protection 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 = 1A 72 dB 1.225 (-2%) 1.250 Notes: 1. Low duty cycle pulse testing with which TJ remains unchanged. 2. ∆VOUT, ∆VREF = 1%. © Seaward Electronics, Inc., 2004. • www.seawardinc.com.cn • Tel: 0086-010-82895700 • Fax: 0086-010-82895706 Room 1605, Building 1, International Pioneering Park, #1 Shangdi XinXi Road • Haidian District, Beijing 100085, China Preliminary and all contents are subject to change without prior notice. 2 SEAWARD ELECTRONICS INC. 1A Positive Voltage Regulators (Preliminary) SE8117 Typical Applications Adjustable Voltage Regulator VIN >= 3.0V 3 2 SE8117T15 VOUT = 1.5V VREF R1 124 Ohm 1 CIN 10uF COUT 22uF IADJ R2 24.9 Ohm Fixed Voltage Regulator VIN >= 4.8V CIN 10uF 3 SE8117T33 2 VOUT = 3.3V COUT 22uF 1 IQ © Seaward Electronics, Inc., 2004. • www.seawardinc.com.cn • Tel: 0086-010-82895700 • Fax: 0086-010-82895706 Room 1605, Building 1, International Pioneering Park, #1 Shangdi XinXi Road • Haidian District, Beijing 100085, China Preliminary and all contents are subject to change without prior notice. 3 SEAWARD ELECTRONICS INC. 1A Positive Voltage Regulators (Preliminary) SE8117 Typical Performance Characteristics Line Transients Reference Voltage vs Junction Temperature Reference Voltage (mV) 1250 VIN = 4.5V – 5.5 V 1245 1240 1235 CIN = 0.1µF, COUT = 1µF 1230 1225 1220 -25 0 25 50 75 100 125 150 Junction Temperature (C) Load Transients Output Voltage vs Junction Temperature 3.70 3.65 Output Voltage 3.60 ILOAD = 10mA – 1A 3.55 3.50 3.45 3.40 3.35 COUT = 22µF, CIN = 10µF 3.30 3.25 3.20 -25 0 25 50 75 100 125 150 Junction Temperature (C) Dropout Voltage vs Output Current 1.14 Dropout Voltage (V) 1.12 1.1 1.08 1.06 1.04 1.02 1 0 200 400 600 800 1000 Output Current (mA) © Seaward Electronics, Inc., 2004. • www.seawardinc.com.cn • Tel: 0086-010-82895700 • Fax: 0086-010-82895706 Room 1605, Building 1, International Pioneering Park, #1 Shangdi XinXi Road • Haidian District, Beijing 100085, China Preliminary and all contents are subject to change without prior notice. 4 SEAWARD ELECTRONICS INC. 1A Positive Voltage Regulators (Preliminary) SE8117 Outline Drawing for SOT-223 © Seaward Electronics, Inc., 2004. • www.seawardinc.com.cn • Tel: 0086-010-82895700 • Fax: 0086-010-82895706 Room 1605, Building 1, International Pioneering Park, #1 Shangdi XinXi Road • Haidian District, Beijing 100085, China Preliminary and all contents are subject to change without prior notice. 5