Description Features The SE5167 is an efficient linear voltage ¾ Typical 175mV dropout voltage at 150mA. regulator. It has extra low dropout voltage. At light ¾ Low Ground current at 65uA. (Typ.) loads the typical dropout voltage is 15mV, at full ¾ Guaranteed 300mA output over the full load the typical dropout voltage is 380mV. The output voltage accuracy is better than 2%. The SE5167 has low ground current at 65uA, so it can help prolong battery life. The SE5167 is specially designed for hand-held, battery-powered devices. operating temperature range. ¾ Extremely tight load and line regulation. ¾ Low temperature coefficient. ¾ Current and thermal limiting. ¾ No-load stability. ¾ Available in SOT-23-3L and TO-92 Packages. Applications ¾ CD/DVD-ROM, CD/RW ¾ Wireless LAN card, Keyboard, Mouse ¾ Battery Powered Equipments ¾ PCMCIA Card Ordering/Marking Information Package Revision Ordering Information 3.3V SE5167AHN-LF 2.8V SE5167BHN-LF 2.5V SE5167CHN-LF 1.8V SE5167DHN-LF 1.5V SE5167EHN-LF 3.0V SE5167FHN-LF 3.3V SE5167AHG-LF 2.8V SE5167BHG-LF 2.5V SE5167CHG-LF 1.8V SE5167DHG-LF 1.5V SE5167EHG-LF 3.0V SE5167FHG-LF Marking Information SE5167AHN YYWW-LF SE5167BHN YYWW-LF SE5167CHN YYWW-LF SE5167DHN YYWW-LF SE5167EHN YYWW-LF SE5167FHN YYWW-LF SE5167AHG YYWW-LF SE5167BHG YYWW-LF SE5167CHG YYWW-LF SE5167DHG YYWW-LF SE5167EHG YYWW-LF SE5167FHG YYWW-LF YY: year code WW: week code. LF: lead free. 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 1 Ordering/Marking Information (Continued) Package Revision Ordering Information Marking Information 3.3V SE5167ALN-LF 167AN_ 2.8V SE5167BLN-LF 167BN_ for production year 2001, and 2.5V SE5167CLN-LF 167CN_ underlined 1 is for year 2002. Starting with 1, a bar on top of 1 is The 1.8V SE5167DLN-LF 167DN_ next character is marked on top for 1.5V SE5167ELN-LF 167EN_ 2003, and underlined for 2004. The 3.0V SE5167FLN-LF 167FN_ 3.3V SE5167ALG-LF 167AG_ 2.8V SE5167BLG-LF 167BG_ 2.5V SE5167CLG-LF 167CG_ 1.8V SE5167DLG-LF 167DG_ naming pattern continues with consecutive characters for later years. The last character is the week code. (A-Z: 1-26, a-z: 27-52) A dot on top right corner is for 1.5V SE5167ELG-LF 167EG_ lead-free process. 3.0V SE5167FLG-LF 167FG_ LF: lead free. 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 2 Absolute Maximum Ratings(1) Operating Ratings(2) Supply Input Voltage (VIN) ..……...……………....+6V Power Dissipation (PD) ……….. Internally Limited (3) Junction Temperature (TJ) …….….... 0°C to +125°C Supply Input Voltage (VIN) ……...….. +2.8V to +6V Junction Temperature (TJ) …….….. 0°C to +125°C Package Thermal Resistance Lead Temperature (soldering, 5 sec.) …....…. 260°C 160°C/W (TO-92) Storage Temperature (TS) ……….. -40°C to +150°C 250°C/W (SOT-23-3L) Electrical Characteristics VIN = 5V; CIN = 2.2μF; COUT = 2.2μF（Electrolytic capacitor）; IOUT = 10mA; TJ = 25°C, unless otherwise specified. Symbol Parameter VOUT Conditions Min Typ Max SE5167 – 1.5V(VIN=1.8V,IOUT=1mA) 1.470 1.5 1.530 SE5167 – 1.8V(VIN=3.3V,IOUT=10mA) 1.764 1.8 1.836 Output Voltage SE5167-2.5V 2.450 2.5 2.550 Accuracy SE5167-2.8V 2.744 2.8 2.856 SE5167-3.0V 2.940 3.0 3.060 SE5167-3.3V 3.234 3.3 3.366 Units V Output Voltage ΔVOUT /ΔT Temperature Note 4 -- 0.025 -- mV/℃ VIN = (VOUT+0.8)V or 2.5V to 5.5V -- 1.0 -- %/V -- 1.0 -- % IOUT =10mA -- 15 -- IOUT =150mA -- 175 -- IOUT =300mA -- 380 -- Thermal Protection Temperature -- 150 -- ℃ Protection Hysterisys -- 20 -- ℃ Coefficient ΔVOUT / VOUT ΔVOUT / VOUT Line Regulation Load Regulation(5) (6) VIN - VOUT TPROTECTION Dropout Voltage Thermal Protection VIN = (VOUT+0.8)V or 2.5V IOUT =1mA to 300mA mV PSRR Ripple Rejection f =120Hz -- 59 -- dB IGROUND Ground Current IOUT =10mA -- 65 -- uA ILIMIT Current Limit VOUT =0V -- 600 -- mA Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 3 Note 1: Exceeding the absolute maximum rating may damage the device. Note 2: The device is not guaranteed to function outside its operating rating. Note 3: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(MAX) = (TJ(MAX) - TA)/θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See Table 1 and the “Thermal Considerations” section for details. Note 4: Output voltage temperature coefficient is the worst-case voltage change divided by the total temperature range. Note 5: Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load range from 100μA to 300mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification. Note 6: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its nominal value measured at 1V differential. Note 7: The Cin or Cout should be chosen carefully. Please refer to the Application Hints Typical Application Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 4 Line Regulation (VOUT = 3.3V) Load Regulation (VOUT = 3.3V) (VIN = 4.3V to 6V, IOUT = 1mA) (VIN = 5V, IOUT = 1mA to 500mA) 3.6000 3.600 3.5000 3.500 3.400 VOUT (V) VOUT (V) 3.4000 3.3000 3.300 3.2000 3.200 3.1000 3.100 3.000 3.0000 4.2 4.7 5.2 0 5.7 100 VIN (V) 200 300 400 500 IOUT (mA) Output Voltage vs Temperature IQ vs IOUT (VOUT = 3.3V) (VIN = 5V, IOUT = 10mA) (VIN = 5V, IOUT = 10mA to 500mA) 160 3.330 140 3.320 100 IQ (uA) VOUT (V) 120 3.310 3.300 3.290 80 60 3.280 40 20 3.270 0 20 40 60 80 100 120 0 0 Temperature (C) 100 200 300 400 500 IOUT (mA) Transient Response (VOUT = 1.5V) PSRR (VOUT = 3.3) (IOUT = 1mA to 150mA) (VIN = 5V, VPP = 1V) 70 60 PSRR (dB) 50 40 30 20 10 0 100 1000 10000 Frequency (Hz) Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 5 Application Hints Thermal Consideration Like any Low dropout regulator, SE5167 requires It is important that the thermal limit of the package external capacitors to ensure stability. The external should not be exceeded. The SE5167 has built-in capacitors must be carefully selected to ensure the thermal protection. When the thermal limit is performances. exceeded, the IC will enter protection, and the VOUT will be reset to zero. The power dissipation for a given application can be calculated as follows: Input Capacitor: An Input Capacitor of at least 2.2uF is required. The inexpensive Electrolytic capacitor is preferred. The The Power Dissipation (PD) is value can be increased without upper limit. PD = IOUT * [VIN – VOUT] Output Capacitor: The thermal limit of the package is then limited to An Output Capacitor is required for look stability. It PD(MAX) = [TJ – TA]/θJA where TJ is the junction must be located no more than 1cm away from the temperature, TA is ambient temperature, and θJA is VOUT pin, and connected directly between VOUT and around 250°C/W for SE5167. SE5167 is designed GND pins. The inexpensive Electrolytic capacitor is to enter thermal protection at 150°C. For example, if recommended. The minimum value is 2.2uF but TA is 25°C then the max PD is limited to about 0.5W. once again its value can be increased without limit. In other words, if IOUT(MAX) = 300mA, then [VIN – VOUT] can not exceed 1.67V. Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 6 OUTLINE DRAWING SOT-23-3L (SC-59) C J H B D A E G F K L N DIM A B C D E F G H J K L DIMENSIONS INCHES MM MIN MAX MIN MAX 0.110 0.047 0.083 0.035 0.070 0.018 0.015 0.0005 0.034 0.003 - 0.120 0.055 0.104 0.040 0.080 0.024 0.020 0.004 0.040 0.007 0.027 2.80 1.20 2.10 0.89 1.78 0.45 0.37 0.013 0.887 0.085 - 3.04 1.40 2.64 1.03 2.05 0.60 0.51 0.10 1.02 0.18 0.69 OUTLINE DRAWING TO-92 A DIMN B D E G F H K Revision J A B E F G H J K DIMENSIONS INCHES MM MIN MAX MIN MAX 0.175 0.170 0.500 0.016 0.045 0.095 0.080 0.125 0.205 0.210 0.610 0.021 0.055 0.105 0.105 0.165 4.445 4.318 12.70 0.407 1.143 2.413 2.032 3.175 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 7 5.207 5.334 15.50 0.533 1.397 2.667 2.667 4.191 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 - 12/5/2008 Revision 12/5/2008 Preliminary and all contents are subject to change without prior notice. © Seaward Electronics, Inc., 2006. • www.seawardinc.com.cn • Page 8