@vic AV2950/2951 LINEAR INTEGRATED CIRCUIT 100 mA LOW-DROPOUT VOLTAGE REGULATOR DESCRIPTION 1 TO-92 The @vic AV2950/2951 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. SOP-8 FEATURES DIP-8 *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. APPLICATIONS *Battery powered equipment. *High efficient linear regulator down to 1.24V. *Cellular phones. QW-R102-001,G @vic AV2950/2951 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS UTC AV2950 1 2 3 OUTPUT INPUT GND TO-92 Plastic Package Bottom View OUTPUT 1 SENSE 2 SHUTDOWN 3 GND AV2951 2951 4 8 INPUT 7 FEEDBACK 6 5V TAP 5 ERROR SOP-8 OR DIP-8 PACKAGE FOR @vic AV2951 OUTPUT 1 NC 2 SHUTDOWN GND 3 8 2 AV2950 4 INPUT 7 NC 6 NC 5 ERROR SOP-8 OR DIP-8 PACKAGE FOR @vic AV2950 Fig.1 QW-R102-001,G @vic AV2950/2951 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM FEEDBACK UNRAGULATED DC INPUT 7 8 OUTPUT 5V 150mA MAX. 1 SENSE FROM CMOS OR TTL SHUT DOWN 3 ERROR AMPLIFIER 60mV 2 182kΩ 5V TAP 6 330KΩ 1.5 µF 60kΩ ERROR ERROR DETECTION COMPARATOR 1.23 REF 5 TO CMOS OR TTL GND 4 FOR @vic AV2951 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Feedback Voltage Shutdown Voltage Storage Temperature Operating Junction Temperature SYMBOL Vcc Vfeedback Vshutdown Tstr Tj VALUE -0.3~+30 -1.5~+30 -0.3~+30 -65~+150 -40~+125 UNIT V V V °C °C QW-R102-001,G @vic AV2950/2951 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Tested at Tj=25°C, VIN=6V, IL=100µA and CL=1µF, unless otherwise specified) PARAMETER Output Voltage Output Voltage PART NUMBER AV2950-2.5 AV2950-3.0 AV2950-3.3 AV2950-3.6 AV2950-5.0 AV2951 AV2950-2.5 AV2950-3.0 AV2950-3.3 AV2950-3.6 AV2950-5.0 AV2951 AV2950-2.5 AV2950-3.0 AV2950-3.3 AV2950-3.6 AV2950-5.0 AV2951 Output Voltage Temperature Coefficient Line Regulation Load Regulation Dropout Voltage Ground Current Dropout Ground Current Current Limit Output Noise 10Hz ~ 100KHz TEST CONDITION TJ=25°C (note 1) -25°C≦TJ≦+85°C (note 1) 100µA≦IL≦100 mA Tj<=Tj(max) MIN 2.45 2.94 3.23 3.53 4.90 TYP 2.5 3.0 3.3 3.6 5.0 MAX 2.55 3.06 3.36 3.67 5.10 2.45 2.94 3.23 3.53 4.90 2.5 3.0 3.3 3.6 5.0 2.55 3.06 3.36 3.67 5.10 2.45 2.94 3.23 3.53 4.90 2.5 3.0 3.3 3.6 5.0 2.55 3.06 3.36 3.67 5.10 UNIT V V V (note 1) 20 6V≦VIN≦30V 100µA≦IL≦100 mA IL=100µA IL=100mA (note 2) IL=100µA IL=100mA VIN=4.5V,IL=100µA Vout=0 CL=1µF CL=200µF CL=3.3µF (Bypass=0.01µF pins 7 to (utc2951)) 0.03 0.04 50 380 75 8 110 160 100 0.1 0.1 80 450 120 12 170 200 ppm/°C 0.2 0.2 150 600 140 14 200 220 430 160 100 % % mV µA mA µA mA 1.25 1.27 40 V V nA µV For LP2951 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) (Note 3) (Note 3) 1 250 3.2 7.6 15 µA mV %VO %VO mV QW-R102-001,G @vic AV2950/2951 PARAMETER Shutdown Input PART NUMBER LINEAR INTEGRATED CIRCUIT TEST CONDITION MIN Regulator Output Current Shutdown UNIT 0.70 V 30 450 50 600 µA µA 3 10 µA 1.3 Input Logic Voltage Shutdown Pin Input Current MAX TYP Low(Regulator ON) High(Regulator OFF) Vshutdown=2.4V Vshutdown=30V Vshutdown≧2V, VIN≦30V, Vout=0, Feedback pin tied to 5V Tap. 2.0 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 QW-R102-001,G @vic AV2950/2951 LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT (10 Ampere Low Dropout Regulator) CURRENT LIMIT SECTION +VIN=Vout+0.5V 0.05Ω 680Ω 2N3906 UTC D65H0 470Ω 8 +VIN 4.7MΩ 5 ERROR UTC LP2951 3 220Ω 20kΩ SD FB GND 4 +VOUT 100m A 10kΩ R1 7 Vout 100µF 4.7µF 1% R2 1 47Ω 0.033µF 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 Vin Vout Fig.3 QW-R102-001,G @vic AV2950/2951 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS RL=50kΩ RL=50Ω 3 2 1 0 0 1 3 2 4 5 6 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 0 1 600 RL=50Ω 2 INPUT VOLTAGE(V) Fig. 7 Ground Pin Current 3 4 5 6 7 8 INPUT VOLTAGE(V) Fig. 8 Ground Pin Current -75 -50 QUIESCENT CURRENT(mA) 60 50 -75 -50 -25 0 25 50 75 V IN=6V IL=100mA 6 5 4 100 125 150 -25 0 25 50 75 100 125 150 1.6 Shutdown Threshold Voltage(V) m A) QUIESCENT CURRENT( 70 50 1.8 7 80 IL=100µA ＞ 100 Fig. 9 Shutdown Threshold Voltage 100 VIN=6V IL=100µA 300 TEMPERATURE(°C)? 8 90 400 0 9 10 11 12 120 110 IL=100mA 500 DROPOUT VOLTAGE(mV) INPUT CURRENT(mA) OUTPUT VOLTAGE(V) 5 4 Fig. 6 Dropout Voltage Fig.5 Input Current Fig.4 Dropout Characteristics 6 -75 -50 TEMPERATURE(°C)? -25 0 25 50 75 100 125 150 1.4 1.2 1.0 0.8 0.6 -75 -50 TEMPERATURE(°C)? -25 0 25 50 75 100 125 150 TEMPERATURE(°C) Fig. 11 Dropout Voltage Fig. 10 Short Circuit Current 500 400 160 150 Dropout Voltage(mV) SHORT CIRCUIT CURRENT(mA) 170 140 130 120 110 100 -75 -50 300 200 100 0 -25 0 25 50 75 TEMPERATURE(°C)? 100 125 150 0.1 1 10 100 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. QW-R102-001,G