UTC LM2954 LINEAR INTEGRATED CIRCUIT 300 mA LOW-DROPOUT VOLTAGE REGULATOR 1 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. SOT-223 TO-92 SOP-8 DIP-8 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. 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 UTC TEMPERATURE RANGE -40°C ~ +125°C -40°C ~ +125°C -40°C ~ +125°C -40°C ~ +125°C PACKAGE ACCURACY 3-Pin TO-92 plastic 3-Pin TO-92 plastic 8-Pin SOP-8 plastic 8-Pin DIP-8 plastic UNISONIC TECHNOLOGIES 1.0% 1.0% 1.0% 1.0% CO., LTD. 1 QW-R102-002,B UTC LM2954 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS UTC LM2954 1 2 3 OUTPUT INPUT GND TO-92 Plastic Package Bottom View OUTPUT 1 SENSE 2 SHUTDOWN 3 UTC LM2954 GND 4 8 INPUT 7 FEEDBACK 6 5V TAP 5 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 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM UNRAGULATED DC FEEDBACK INPUT 7 8 OUTPUT 5V 150mA MAX. 1 SENSE FROM CMOS OR TTL SHUT DOWN 3 ERROR AMPLIFIER 60mV 182kΩ 5V TAP 6 ERROR DETECTION COMPARATOR 330KΩ 1.5 µF 60kΩ ERROR 1.23 REF 2 5 TO CMOS OR TTL GND 4 ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VALUE UNIT Supply Voltage Feedback Voltage Shutdown Voltage Comparator Output Voltage Storage temperature Operating Junction Temperature Vcc Vfeedback Vshutdown Vco Tstr Tj -0.3 ~ +30 -1.5 ~ +30 -0.3 ~ +30 -0.3 ~ +30 -65 ~ +150 -40 ~ +125 V V V V °C °C UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R102-002,B UTC LM2954 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Tested at Tj=25°C,VIN=6V,IL=100µA and CL=1F.unless otherwise specified) PARAMETER PART NUMBER Output Voltage 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 TEST CONDITIONS TJ=25°C (note 1) -25°C<=TJ<=+85°C (note 1) 100µA<=IL<=300 mA Tj<=Tj(max) (note 1) MIN. TYP. MAX. UNIT 3.27 4.95 3.3 5.0 3.33 5.05 V 3.23 4.9 3.3 5.0 3.36 5.1 V 3.23 4.9 3.3 5.0 3.36 5.1 V 100 ppm/°C 50 0.1 0.2 80 0.2 0.5 150 % % mV mA Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage 6V<=VIN<=30V 100µA<=IL<=300 mA IL=100mA Ground Current IL=200mA (note 2) IL=100µA 380 0.75 450 0.12 600 0.14 IL=200mA VIN=4.5V,IL=100µA Vout=0 CL=1µF CL=200µF CL=3.3µF (Bypass=0.01µF) pins 7 to (utc2954 ) 8 110 300 12 170 14 200 Dropout Ground Current Current Limit Output Noise 10Hz to 100KHz 20 µA mA 430 160 100 µV 1.25 1.27 40 V V nA 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 ppm/°C 0.1 nA/°C Error Comparator Output Leakage Current Output Low Voltage Upper Threshold Voltage Lower Threshold Voltage Hysteresis VOH=30V VIN=4.5V IOL=400µA (Note 3) 1 250 3.2 %VO (Note 3) (Note 3) µA mV 7.6 15 %VO mV Shutdown Input UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R102-002,B UTC LM2954 PARAMETER LINEAR INTEGRATED CIRCUIT PART NUMBER TEST CONDITIONS MIN. TYP. Input Logic Voltage MAX. 1.3 Low(Regulator ON) High(Regulator OFF) Vshutdown=2.4V Shutdown Pin Input Current V 0.70 2.0 Vshutdown=30V Vshutdown>=2V,VIN<=30V, Vout=0, Feedback pin tied to 5V Tap. Regulator Output Current Shutdown UNIT 30 50 µA 450 3 600 10 µA µA 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: Vref≤Vout≤(Vin-1V), 2.3V≤Vin≤30V, 100µA≤IL≤100mA, TJ≤TJMAX APPLICATION CIRCUIT (10A LOW DROPOUT REGULATOR) CURRENT LIMIT SECTION +VIN=Vout+0.5V 0.05Ω 680Ω 2N3906 UTC D65H0 470Ω 8 +VIN 4.7MΩ ERROR 5 UTC LM2954 3 220Ω 20kΩ SD FB GND 4 +VOUT 10 A 10kΩ R1 7 Vout 1% 4.7 µF 100 µF R2 1 47Ω 0.033 µF 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 LINEAR INTEGRATED CIRCUIT UTC LM2954-3.3 UTC LM2954-5.0 1 µF Vout 1 µF Fig. 3 UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R102-002,B