UTCLM2954-5.0

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 -40°C ~ +125°C -40°C ~ +125°C -40°C ~ +125°C -40°C ~ +125°C 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 182kΩ 2 6 1.5 µF FROM CMOS OR TTL SHUT DOWN 3 ERROR AMPLIFIER 60mV 5V TAP 330KΩ 60kΩ ERROR DETECTION COMPARATOR ERROR 5 TO CMOS OR TTL 1.23 REF 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=25°C (note 1) -25°C