SE5168

SE5168 SEAWARD | Alldatasheet

Document overview

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Technical content

Features

¾ Typical Low Dropout Voltage of 200mV at 75mA. ¾ Guaranteed 150mA output over the full operating temperature range. ¾ Excellent Line and Load Regulation. ¾ High Accuracy Output Voltage of 2%. ¾ Typical Low Ground Current at 50 μA ¾ Current Limiting and Thermal Protection. ¾ Standard SOT-23-3L, TO-92, and SC70 (SOT-323-3L) Package.

Applications

¾ Cellphones. ¾ Wireless LAN’s. ¾ Hand-Held Instrumentation. ¾ Portable Video Game Devices. ¾ Digital Cameras. Ordering/Marking Information Package Ordering Information Marking Information 3.3V SE5168AHN SE5168AHN YYWW 2.8V SE5168BHN SE5168BHN YYWW 2.5V SE5168CHN SE5168CHN YYWW 1.8V SE5168DHN SE5168DHN YYWW 1.5V SE5168EHN SE5168EHN YYWW 3.0V SE5168FHN SE5168FHN YYWW 3.3V SE5168AHG SE5168AHG YYWW 2.8V SE5168BHG SE5168BHG YYWW 2.5V SE5168CHG SE5168CHG YYWW 1.8V SE5168DHG SE5168DHG YYWW 1.5V SE5168EHG SE5168EHG YYWW 3.0V SE5168FHG SE5168FHG YYWW YY: year code WW: week code.

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator Ordering/Marking Information (Continued) Package Ordering Information Marking Information 3.3V SE5168ALN 16 8AN_ 2.8V SE5168BLN 16 8BN_ 2.5V SE5168CLN 16 8CN_ 1.8V SE5168DLN 16 8DN_ 1.5V SE5168ELN 16 8EN_ 3.0V SE5168FLN 16 8FN_ 3.3V SE5168ALG 16 8AG_ 2.8V SE5168BLG 16 8BG_ 2.5V SE5168CLG 16 8CG_ 1.8V SE5168DLG 16 8DG_ 1.5V SE5168ELG 16 8EG_ 3.0V SE5168FLG 16 8FG_ 3.3V SE5168APN 6A N 2.8V SE5168BPN 6B N 2.5V SE5168CPN 6C N 1.8V SE5168DPN 6D N 1.5V SE5168EPN 6E N 3.0V SE5168FPN 6F N 3.3V SE5168APG 6A G 2.8V SE5168BPG 6B G 2.5V SE5168CPG 6C G 1.8V SE5168DPG 6D G 1.5V SE5168EPG 6E G 3.0V SE5168FPG 6F G Starting with 1, a bar on top of 1 is for production year 2001, and underlined 1 is for year 2002. The next character is marked on top for 2003, and underlined for 2004. The naming pattern continues with consecutive characters for later years. The last character is the week code. (

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator

Electrical Characteristics

VIN =5V; CIN = 2.2μF; COUT = 2.2μF（Electrolytic capacitor）; IOUT = 10mA; TJ = 25°C; unless otherwise noted Symbol Parameter Conditions Min Typ Max Unit VOUT Output Voltage Accuracy SE5168 – 1.5V(VIN=1.8V,IOUT=1mA) SE5168 – 1.8V(VIN=3.3V,IOUT=10mA) SE5168 – 2.5V SE5168 – 2.8V SE5168 – 3.0V SE5168 – 3.3V 1.470 1.764 2.450 2.744 2.940 3.234 1.5 1.8 2.5 2.8 3.0 3.3 1.530 1.836 2.550 2.856 3.060 3.366 V V V V V V ΔVOUT Line Regulation V IN = (VOUT + 1)V to 5.5V -- 1 -- %/V ΔVOUT Load Regulation (5) VIN =(VOUT + 1)V or 2.7V IOUT = 10mA to 150mA -- 1 -- % ΔVOUT/ΔT Output Voltage Temperature Coefficient Note 4 -- 0.033 -- mV/°C IOUT = 10mA -- 20 -- IOUT = 75mA -- 200 -- VIN – VOUT Dropout Voltage (6) (VOUT>2V) IOUT = 150mA -- 500 -- mV Thermal Protection Temperature -- 150 -- TPROTECTION Thermal Protection Protection Hysterisys -- 20 -- PSRR Ripple Rejection f = 120 Hz -- 57 -- dB IQ Quiescent Current I OUT = 10mA -- 50 -- μA ILIMIT Current Limit -- 200 -- mA Absolute Maximum Ratings(1) Power Dissipation (PD) ……….. Internally Limited (3) Storage Temperature (TS) ……….. -40°C to +150°C Operating Ratings(2) Junction Temperature (TJ) …….….. 0°C to +125°C Package Thermal Resistance 160°C/W (TO-92) 230°C/W (SOT-23-3L) 250°C/W (SC70)

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator 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 “Thermal Consideration” 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 0.1mA to 150mA. 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

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator Line Regulation (VOUT = 3.3V) (VIN = 4.3V to 5V, IOUT = 1mA) 3.0000 3.1000 3.2000 3.3000 3.4000 3.5000 3.6000 4.2 4.7 5.2 5.7 VIN (V) VOUT (V) Load Regulation (VOUT = 3.3V) (VIN = 5V, IOUT = 1mA to 150mA) 3.0000 3.1000 3.2000 3.3000 3.4000 3.5000 3.6000 0 50 100 150 IOUT (mA) VOUT (V) Output Voltage vs Temperature (VIN = 3.3V, IOUT = 10mA) 1.400 1.450 1.500 1.550 1.600 20 30 40 50 60 70 80 90 100 110 120 Temperature(C) Output Voltage(V) IQ vs IOUT (VOUT = 1.5V) (VIN = 3.3V, IOUT = 1mA to 150mA) 100 0 20 40 60 80 100 120 140 160 IOUT (mA) IQ (uA) Power Supply Rejection Ratio (PSRR) (VIN = 5V, VPP = 1V) 40.0 45.0 50.0 55.0 60.0 65.0 70.0 10 100 1000 10000 100000 Frequency(Hz) PSRR(dB) Transient Response (VOUT = 1.5V) (IOUT = 1mA to 50mA)

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator Application Hints Like any low dropout regulator, SE5168 requires external capacitors to ensure stability. The external capacitors must be carefully selected to ensure performance. Thermal Considerations It is important that the thermal limit of the package is not exceeded. The SE5168 has built-in thermal protection. When the thermal limit is exceeded, the IC will enter protection, and V OUT will be pulled to ground. The power dissipation for a given application can be calculated as following: The power dissipation (P D) is PD = IOUT * [VIN – VOUT] The thermal limit of the package is then limited to P D(MAX) = [T J – T A]/ΘJA where T J is the junction temperature, T A is the ambient temperature, and ΘJA is around 250°C/W for SE5168. SE5168 is designed to enter thermal protection at 150°C. For example, if T A is 25°C then the maximum P D is limited to about 0.5W. In other words, if I OUT(MAX) = 150mA, then [VIN – VOUT] cannot exceed 3.33V. Input Capacitor An input capacitor of at least 2.2μF is required. The inexpensive Electrolytic capacitor is preferred. The value can be increased without upper limit. Output Capacitor An output capacitor is required for stability. It must be placed no more than 1 cm away from the V OUT pin, and connected directly between VOUT and GND pins. The inexpensive Electrolytic capacitor is recommended. The minimum value is 2.2 μF but may be increased without limit.

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator OUTLINE DRAWING SOT-23-3L (SC-59) OUTLINE DRAWING TO-92 B C A D E F J G H K L MIN MAX MIN MAX A 0.110 0.120 2.80 3.04 B 0.047 0.055 1.20 1.40 C 0.083 0.104 2.10 2.64 D 0.035 0.040 0.89 1.03 E 0.070 0.080 1.7 8 2.05 F 0.018 0.024 0.4 5 0.60 G 0.015 0.020 0.37 0.51 H 0.0005 0.004 0.013 0.10 J 0.034 0.040 0.887 1.0 2 K 0.003 0.007 0.085 0.1 8 L - 0.027 - 0.69 DIMN INCHES MM DIMENSIONS A B D E G F H K J M I NM A XM I NM A X A 0.175 0.205 4.445 5.207 B 0.170 0.210 4.318 5.334 E 0.500 0.610 12.70 15.50 F 0.016 0.021 0.407 0.533 G 0.045 0.055 1.143 1.397 H 0.095 0.105 2.413 2.667 J 0.080 0.105 2.032 2.667 K 0.125 0.165 3.175 4.191 DIMN INCHES MM DIMENSIONS

Preliminary and all contents are subject to change without prior notice. SE5168 150mA CMOS LDO Regulator OUTLINE DRAWING SC70 (SOT-323-3L) 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