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| UTC M2950/2951 LINEAR INTEGRATED CIRCUIT 250 mA LOW-DROPOUT VOLTAGE REGULATOR DESCRIPTION The UTC M2950/2951 is a monolithic integrated voltage regulator with low dropout voltage, and low quiescent current. It includes many features that suitable for different applications. Available in 3-pin TO-92, DIP-8 and SOP-8 packages. 1 TO-92 SOP-8 FEATURES *High accuracy 2.5, 3.0, 3.3, 3.6 or 5V fixed output for TO-92, SOP-8 package. *Extremely low quiescent current and dropout voltage. *Extremely tight load and line regulation. *Current and thermal limiting. *Very low temperature coefficient. *Logic controlled shutdown and error flag available for DIP and SOP package. *Output voltage programmable for DIP and SOP package. DIP-8 APPLICATIONS *Battery powered equipment. *High efficient linear regulator down to 1.24V. *Cellular phones. UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R102-004,D UTC M2950/2951 PIN CONFIGURATIONS LINEAR INTEGRATED CIRCUIT UTC M2950 1 2 3 OUTPUT GND INPUT TO-92 Plastic Package Bottom View OUTPUT SENSE 1 2 8 7 6 5 INPUT FEEDBACK 5V TAP SHUTDOWN 3 UTC M2951 GND 4 ERROR SOP-8 OR DIP-8 PACKAGE FOR UTC M2951 OUTPUT NC 1 2 8 7 6 5 INPUT NC NC SHUTDOWN 3 UTC M2950 GND 4 ERROR SOP-8 OR DIP-8 PACKAGE FOR UTC M2950 Fig.1 UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R102-004,D UTC M2950/2951 BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT UNRAGULATED DC FEEDBACK 7 INPUT 8 OUTPUT 1 5V 250mA MAX. SENSE 182K ERROR AMPLIFIER 60mV 60K ERROR 1.23 REF ERROR DETECTION COMPARATOR 2 FROM CMOS OR TTL SHUT DOWN 5V TAP 3 6 1.5 F 330K 5 TO CMOS OR TTL GND 4 FOR UTC M2951 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Feedback Voltage Shutdown Voltage Comparator Output Voltage Storage Temperature Operating Junction Temperature SYMBOL Vcc Vfeedback Vshutdown Vco Tstr Tj VALUE -0.3~+18 -1.5~+18 -0.3~+18 -0.3~+18 -65~+150 -40~+125 UNIT V V V V C C UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R102-004,D UTC M2950/2951 LINEAR INTEGRATED CIRCUIT TYP. 2.5 3.0 3.3 3.6 5.0 2.5 3.0 3.3 3.6 5.0 2.5 3.0 3.3 3.6 5.0 MAX. 2.55 3.06 3.36 3.67 5.10 2.55 3.06 3.36 3.67 5.10 2.55 3.06 3.36 3.67 5.10 100 0.1 0.1 80 450 120 12 170 200 280 0.2 0.2 150 600 140 22 200 300 430 160 100 ELECTRICAL CHARACTERISTICS (Tested at Tj=25C, VIN=6V, IL=100A and CL=1F, unless otherwise specified) PARAMETER PART NUMBER TEST CONDITION MIN. Output Voltage UTC M2950-2.5 TJ=25C 2.45 UTC M2950-3.0 2.94 UTC M2950-3.3 3.23 UTC M2950-3.6 3.53 UTC M2950-5.0 4.90 UTC M2951 (note 1) UTC M2950-2.5 -25C<=TJ<=<=+85C 2.45 UTC M2950-3.0 2.94 UTC M2950-3.3 3.23 UTC M2950-3.6 3.53 UTC M2950-5.0 4.90 UTC M2951 (note 1) Output Voltage UTC M2950-2.5 100A<=IL<=250 mA 2.45 UTC M2950-3.0 Tj<=Tj(max) 2.94 UTC M2950-3.3 3.23 UTC M2950-3.6 3.53 UTC M2950-5.0 4.90 UTC M2951 (note 1) Output Voltage 20 Temperature Coefficient Line Regulation 6V<=VIN<=18V 0.03 Load Regulation 100A<=IL<=250 mA 0.04 Dropout Voltage IL=100A 50 IL=250mA (note 2) 380 Ground Current IL=100A 75 IL=250mA 8 Dropout Ground Current VIN=4.5V,IL=100A 110 Current Limit Vout=0 160 Output Noise 10Hz to CL=1F 260 100KHz CL=200F CL=3.3F (Bypass=0.01F pins 7 to (UTC M2951)) UNIT V V V ppm/C % % mV A mA A mA V For M2951 8-Pin version only Reference Voltage Reference Voltage Feedback pin Bias Current Reference Voltage Temperature Coefficient Feedback Bias Current temperature Coefficient 1.22 1.19 1.235 20 50 0.1 1.25 1.27 40 V V nA ppm/C nA/C (Note 4) Error Comparator UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R102-004,D UTC M2950/2951 PARAMETER Output Leakage Current Output Low Voltage LINEAR INTEGRATED CIRCUIT TEST CONDITION VOH=18V VIN=4.5V IOL=400A (Note 3) (Note 3) (Note 3) 15 3.2 7.6 MIN. TYP. MAX. 1 250 PART NUMBER UNIT A mV Upper Threshold Voltage Lower Threshold Voltage Hysteresis %VO %VO mV Shutdown Input Input Logic Voltage Low(Regulator ON) High(Regulator OFF) Vshutdown=2.4V Vshutdown=18V Vshutdown>=2V,VIN<=18V, Vout=0, Feedback pin tied to 5V Tap. 2.0 30 450 3 50 600 10 A A A 1.3 0.70 V Shutdown Pin Input Current Regulator Output Current Shutdown Note 1: Additional conditions for 8-pin versions are feedback tied to 5V Tap an Output tied to Output Sense (Vout=5V) and Vshutdown<=0.8V. Note 2:Dropout Voltage is defined as the input to output differential at which the output voltage drops 100mV below its nominal value measured at 1V differential. Note 3:Comparator thresholds are expressed in terms of percentage value of voltage output. Note 4:VrefVout(Vin-1V), 2.3VVin30V, 100AIL250mA, TJTJMAX UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R102-004,D UTC M2950/2951 CURRENT L IM IT S E C T IO N LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT (10 Ampere Low Dropout Regulator) +V IN =V ou t+ 0 .5 V 680 0 .0 5 2N3906 470 UTC D65H0 4 .7 M 8 +V IN ERROR 5 10k +V OUT 250m A UTC M 2951 3 20k 0 .0 3 3 F 220 SD FB GND 4 7 R1 1% R2 47 4 .7 F 100F Vout 1 V o u t= 1 .2 3 V * ( 1 + R 1 /R 2 ) For 5V o u tp u t u s e in te r n a l r e s is to r s .W ir e p in 6 to 7 a n d w ir e p in 2 to + V o u t Fig.2 Vin UTC UTC UTC UTC UTC M2950-2.5 M2950-3.0 M2950-3.3 M2950-3.6 M2950-5.0 Vout Fig.3 UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R102-004,D UTC M2950/2951 Fig.4 Dropout Characteristics LINEAR INTEGRATED CIRCUIT Fig.5 Input Current 300 290 280 270 260 250 240 230 220 210 200 190 180 170 160 150 0 600 TYPICAL PERFORMANCE CHARACTERISTICS Fig. 6 Dropout Voltage 6 4 3 2 1 0 RL=50k RL=20 DROPOUT VOLTAGE(mV) 5 INPUT CURRENT(mA) OUTPUT VOLTAGE(V) RL=20 500 400 300 IL=250mA IL=100A 100 50 0 -75 -50 -25 0 25 50 75 100 125 150 0 1 INPUT VOLTAGE(V) 2 3 4 5 6 1 2 INPUT VOLTAGE(V) 3 4 5 6 7 8 9 10 11 12 TEMPERATURE(C) Fig. 7 Ground Pin Current 10 120 Fig. 8 Ground Pin Current Shutdown Threshold Voltage(V) 75 100 125 150 Fig. 9 Shutdown Threshold Voltage 1.8 1.6 1.4 1.2 1.0 0.8 0.6 -75 -50 -25 0 25 50 75 100 125 150 QUIESCENT CURRENT(mA) 110 QUIESCENT CURRENT() 9 100 90 80 70 60 50 -75 -50 -25 0 25 50 75 100 125 150 VIN=6V IL=100A 8 V IN=6V IL=250mA 7 6 -75 -50 -25 0 25 50 TEMPERATURE(C) TEMPERATURE(C) TEMPERATURE(C) Fig. 10 Short Circuit Current SHORT CIRCUIT CURRENT(mA) 500 300 290 280 270 260 250 240 230 -75 -50 -25 0 25 50 75 100 125 150 400 Fig. 11 Dropout Voltage Dropout Voltage(mV) 300 200 100 0 100 150 200 250 TEMPERATURE(C) OUTPUT CURRENT(mA) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R102-004,D |
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