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| UTC LM2954 LINEAR INTEGRATED CIRCUIT 300 mA LOW-DROPOUT VOLTAGE REGULATOR 1 DESCRIPTION The UTC LM2954 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,SOP-8 and SOT-223 packages. 1 SOT-223 TO-92 FEATURES *High accuracy 3.3, 5V fixed output for TO-92, DIP-8 and 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. SOP-8 DIP-8 APPLICATIONS *Battery powered equipment. *High efficient linear regulator down to 1.24V. *Cellular phones. ORDERING INFORMATION PART NUMBER UTC LM2954-5.0 UTC LM2954-3.3 UTC LM2954 UTC LM2954 TEMPERATURE RANGE -40C ~ +125C -40C ~ +125C -40C ~ +125C -40C ~ +125C PACKAGE 3-Pin TO-92 plastic 3-Pin TO-92 plastic 8-Pin SOP-8 plastic 8-Pin DIP-8 plastic ACCURACY 1.0% 1.0% 1.0% 1.0% UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R102-002,B UTC LM2954 PIN CONFIGURATIONS LINEAR INTEGRATED CIRCUIT UTC LM2954 1 2 3 OUTPUT GND INPUT TO-92 Plastic Package Bottom View OUTPUT SENSE SHUTDOWN 1 2 8 7 6 5 INPUT FEEDBACK 5V TAP 3 UTC LM2954 GND 4 ERROR SOP-8 OR DIP-8 PACKAGE UTC LM2954 INPUT GND OUTPUT SOT-223 PACKAGE Fig. 1 UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R102-002,B UTC LM2954 BLOCK DIAGRAM UNRAGULATED DC LINEAR INTEGRATED CIRCUIT FEEDBACK 7 INPUT 8 OUTPUT 1 5V 150mA MAX. SENSE 182k 5V TAP 60k ERROR 1.23 REF ERROR DETECTION COMPARATOR 2 6 1.5 F FROM CMOS OR TTL SHUT DOWN 3 ERROR AMPLIFIER 60mV 330K 5 TO CMOS OR TTL GND 4 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 ~ +30 -1.5 ~ +30 -0.3 ~ +30 -0.3 ~ +30 -65 ~ +150 -40 ~ +125 UNIT V V V V C C UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R102-002,B UTC LM2954 PARAMETER Output Voltage LINEAR INTEGRATED CIRCUIT TEST CONDITIONS TJ=25C (note 1) -25C<=TJ<=+85C (note 1) 100A<=IL<=300 mA Tj<=Tj(max) (note 1) ELECTRICAL CHARACTERISTICS (Tested at Tj=25C,VIN=6V,IL=100A and CL=1F.unless otherwise specified) PART NUMBER UTC LM2954-3.3 UTC LM2954-5.0 UTC LM2954 UTC LM2954-3.3 UTC LM2954-5.0 UTC LM2954 UTC LM2954-3.3 UTC LM2954-5.0 UTC LM2954 MIN. 3.27 4.95 3.23 4.9 3.23 4.9 20 TYP. 3.3 5.0 3.3 5.0 3.3 5.0 MAX. 3.33 5.05 3.36 5.1 3.36 5.1 100 UNIT V V V ppm/C % % mV Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage 6V<=VIN<=30V 100A<=IL<=300 mA IL=100mA IL=200mA (note 2) IL=100A IL=200mA VIN=4.5V,IL=100A Vout=0 CL=1F CL=200F CL=3.3F (Bypass=0.01F) pins 7 to (utc2954 ) 50 380 0.75 8 110 300 0.1 0.2 80 450 0.12 12 170 0.2 0.5 150 600 0.14 14 200 430 160 100 Ground Current mA Dropout Ground Current Current Limit Output Noise 10Hz to 100KHz A mA V For 8-Pin Version Only Reference Voltage Reference Voltage Feedback Pin Bias Current Reference Voltage Temperature Coefficient Feedback Bias Current Temperature Coefficient (Note 4) 1.22 1.19 1.235 20 50 0.1 1.25 1.27 40 V V nA ppm/C nA/C Error Comparator Output Leakage Current Output Low Voltage Upper Threshold Voltage Lower Threshold Voltage Hysteresis VOH=30V VIN=4.5V IOL=400A (Note 3) (Note 3) (Note 3) 15 1 250 3.2 7.6 A mV %VO %VO mV Shutdown Input UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R102-002,B UTC LM2954 PARAMETER Input Logic Voltage LINEAR INTEGRATED CIRCUIT TEST CONDITIONS Low(Regulator ON) High(Regulator OFF) Vshutdown=2.4V Vshutdown=30V Vshutdown>=2V,VIN<=30V, Vout=0, Feedback pin tied to 5V Tap. PART NUMBER MIN. TYP. 1.3 MAX. 0.70 UNIT V 2.0 30 450 3 50 600 10 A A A 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, 100AIL100mA, TJTJMAX APPLICATION CIRCUIT (10A LOW DROPOUT REGULATOR) CURRENT LIMIT SECTION +VIN=Vout+0.5V 680 0.05 2N3906 470 UTC D65H0 4.7M 8 +VIN ERROR 5 10k +VOUT 10 A UTC LM2954 3 220 20k 0.033 F SD FB GND 4 7 R1 1% R2 4.7 F 100 F Vout 1 47 Vout=1.23V*(1+R1/R2) For 5V output use internal resistors.Wire pin 6 to 7 and wire pin 2 to +Vout Fig.2 UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R102-002,B UTC LM2954 Vin 1 F LINEAR INTEGRATED CIRCUIT Vout 1 F UTC LM2954-3.3 UTC LM2954-5.0 Fig. 3 UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R102-002,B |
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