ET- LP2950-XX 100 mA Low Dropout ET- LP2951-XX Positive Voltage Regulator Description The MIK2950-XX/MIK2951-XX is a low power voltage regulator. This device excellent choice for use in battery powered application such as cordless telephone, radio control systems, and portable computers. The MIK2950-XX/MIK2951-XX features very low quiescent current (75µA Typ.) and very low drop output voltage (Typ. 40mV at light load and 380mV at 100mA). This includes a tight initial tolerance of 0.5% typ., extremely good load and line regulation of 0.05% typ., and very low output temperature coefficient, making the MIK2950-XX/MIK2951-XX useful as a low-power voltage reference. The error flag output feature is used as power-on reset for warn of a low output voltage, due to following batteries on input. Other feature is the logic-compatible shutdown input which enable the regulator to be switched on and off. The MIK2951-XX is available in 8-pin plastic packages. The regulator output voltage may be pin-strapped for a -XX volt or programmed from 1.24 volt to 29 volts with external pair of resistors. The MIK2950-XX is offered in 3-pin TO-92 package compatible with other fixed regulator. Applications Features • • • • • • • • • • • • • • • • • • • • High accuracy output voltage Guaranteed 100mA output Very low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Needs only 1mF for stability Error Flag warns of output dropout Logic-Controlled electronic shutdown Output programmable from 1.24 to 29V Typical application data 100 mA adjustable regulator Battery powered systems Cordless telephones Radio control systems Portable/Palm top/Notebook computers Portable consumer equipment Portable Instrumentation Avionics Automotive Electronics SMPS Post-Regulator Voltage Reference Package information Pin Connection MIK2951-XX Top view input output 1 sense 2 7 MIK2951-XX 3 6 feedback 4 error shutdown ground 8 5 -XX V tap TO-92 Plastic Package (MIK2950-XX only) Absolute Maximum Ratings Parameter Power Dissipation Maximum Internally Limited Units W 260 °C Storage Temperature Range -65 to+150 °C Operating Junction Temperature Range -55 to +150 °C Input Supply Voltage -0.3 to +30 V Feedback Input Voltage -1.5 to +30 V Shutdown Input Voltage -0.3 to +30 V Error Comparator Output -0.3 to +30 V Lead Temperature (Soldering, 5 seconds) Device Selection Guide (Note 1) Output voltage Device MIK2950-2.85, MIK2951-2.85 MIK2950-3.0, MIK2951-3.0 MIK2950-3.3, MIK2951-3.3 MIK2950-5.0, MIK2951-5.0 2.85 3.0 3.3 5.0 Note 1: Other versions are available Vout = 2.9V to 5.0V Page 1 of 3 BEIJING ESTEK ELECTRONICS CO.,LTD ET- LP2950-XX ET- LP2951-XX Description The MIK2950-XX/MIK2951-XX is a low power voltage regulator. This device excellent choice for use in battery powered application such as cordless telephone, radio control systems, and portable computers. The MIK2950-XX/MIK2951-XX features very low quiescent current (75µA Typ.) and very low drop output voltage (Typ. 40mV at light load and 380mV at 100mA). This includes a tight initial tolerance of 0.5% typ., extremely good load and line regulation of 0.05% typ., and very low output temperature coefficient, making the MIK2950-XX/MIK2951-XX useful as a low-power voltage reference. The error flag output feature is used as power-on reset for warn of a low output voltage, due to following batteries on input. Other feature is the logic-compatible shutdown input which enable the regulator to be switched on and off. The MIK2951-XX is available in 8-pin plastic packages. The regulator output voltage may be pin-strapped for a -XX volt or programmed from 1.24 volt to 29 volts with external pair of resistors. The MIK2950-XX is offered in 3-pin TO-92 package compatible with other fixed regulator. Applications Features • • • • • • • • • • • • • • • • • • • • High accuracy output voltage Guaranteed 100mA output Very low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Needs only 1mF for stability Error Flag warns of output dropout Logic-Controlled electronic shutdown Output programmable from 1.24 to 29V Typical application data 100 mA adjustable regulator Battery powered systems Cordless telephones Radio control systems Portable/Palm top/Notebook computers Portable consumer equipment Portable Instrumentation Avionics Automotive Electronics SMPS Post-Regulator Voltage Reference Package information Pin Connection MIK2951-XX Top view input output 1 sense 2 7 MIK2951-XX 3 6 feedback 4 error shutdown ground 8 5 -XX V tap TO-92 Plastic Package (MIK2950-XX only) Absolute Maximum Ratings Parameter Power Dissipation Maximum Internally Limited Units W 260 °C Lead Temperature (Soldering, 5 seconds) Storage Temperature Range -65 to+150 °C Operating Junction Temperature Range -55 to +150 °C Input Supply Voltage -0.3 to +30 V Feedback Input Voltage -1.5 to +30 V Shutdown Input Voltage -0.3 to +30 V Error Comparator Output -0.3 to +30 V Device Selection Guide (Note 1) Output voltage Device MIK2950-2.85, MIK2951-2.85 MIK2950-3.0, MIK2951-3.0 MIK2950-3.3, MIK2951-3.3 MIK2950-5.0, MIK2951-5.0 2.85 3.0 3.3 5.0 Note 1: Other versions are available Vout = 2.9V to 5.0V Page 1 of 3 BEIJING ESTEK ELECTRONICS CO.,LTD ET- LP2950-XX ET- LP2951-XX Electrical Characteristics Electrical Characteristics at Ta = 25oC, VIN = 15V; unless otherwise noted Parameter Test Conditions (Note 2) Min Typ Max Units -25°C≤TJ≤85°C Full Operating Temperature 0.985 |V0| 0.98 |V0| V0 1.015 |V0| 1.02 |V0| V 0.976|V0| V0 1.024 |V0| Output Voltage Temperature Coefficient 100µA ≤ IL ≤ 100mA, TJ≤TJMAX (Note 1) 50 150 ppm/°C Line Regulation (Note 3) V0 + 1V ≤ Vin ≤ 30V (Note 4) 0.04 0.4 % Load Regulation (Note 3) 100µA ≤ IL ≤ 100mA 0.1 0.3 % Dropout Voltage (Note 5) IL=100 µA IL=100 mA 50 380 80 450 mV Ground Current IL=100 µA IL=100 mA 75 8 120 12 µA mA Dropout Ground Current Vin=V0 - 0.5V, IL=100 µA 110 170 µA Current Limit Vout=0 160 200 mA 0.05 0.2 Output Voltage Output Voltage Thermal Regulation Output Noise, 10Hz to 100KHz 430 160 100 CL=1µF CL=200µF CL=3.3µF (Bypass=0.01 µF pins 7 to 1 (MIK2951-XX)) %/W µV rms 8-pin Versions only Reference Voltage Reference Voltage Feedback Pin Bias Current Over Temperature (Note 6) Reference Voltage Temperature Coefficient (Note 7) 1.21 1.185 1.235 20 Feedback Pin Bias Current Temperature Coefficient 1.26 1.285 40 V nA 50 ppm/°C 0.1 nA/°C Error Comparator Output Leakage Current Voh=30V 0.01 1.0 µA Output Low Voltage Upper Threshold Voltage Lower Threshold Voltage Hysteresis Vin=4.5V, IOL=400 µA (Note 8) (Note 8) (Note 8) 150 60 75 15 250 mV 1.3 0.7 30 450 50 600 3 3.3V ≤ VOUT < 5.0 V 10 20 2.0V ≤ VOUT < 3.3 V 30 40 95 Shutdown Input Input Logic Voltage Shut down Pin Input Current Regulator Output Current in Shutdown Low (Regulator ON) High (Regulator OFF) VS=2.4V VS=30V (Note 9) VOUT = 5.0 V V 2 µA Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range. Note 2: Unless otherwise specified all limits guaranteed for TJ = 25°C, Vin = V0 + 1V, IL = 100µA and CL = 1µF. Additional conditions for the 8-pin versions are feedback tied to -XX V tap and output tied to output Sense (Vout = XX V) and Vshutdown ≤ 0.8 V Note 3: Regulations is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 4: Line regulation for MIK2951-XX is tested at 150°C for IL = 1mA. For IL = 100µA and TJ = 125°C, line regulation is guaranteed by design to 0.2%. See typical performance characteristics for line regulation versus temperature and load current. Note 5: 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. At very low values of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be taken into account. Note 6: Vref ≤ Vout ≤ (Vin - 1V), 2.3V ≤ Vin ≤ 30V, 100µA ≤ IL ≤ 100mA, TJ ≤ TJMAX. Note 7: Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. Note 8: Comparator thresholds are expressed in terms of a voltage differential at the feedback terminal below the nominal reference voltage measured at V0 + 1V input. To express these thresholds in terms of output voltage change, multiply by the error amplifier Page 2 of 3 BEIJING ESTEK ELECTRONICS CO.,LTD ET- LP2950-XX ET- LP2951-XX gain = Vout/Vref= (R1 + R2)/R2. For example, at a programmed output voltage of 5V, the error output is guaranteed to go low when the output drops by 95mV x 5V/1.235V=384mV. Thresholds remain constant as a percent of Vout as Vout is varied, with the dropout warning occurring at typically 5% below nominal, 7.5% guaranteed. Note 9: Vshutdown ≥ 2V, Vin ≤ 30V, Vout = 0, Feedback pin tied to -XX V Tap. Block Diagram and Typical Applications MIK2950-XX MIK2951-XX Page 3 of 3 BEIJING ESTEK ELECTRONICS CO.,LTD