TS2950ACTA3

TS2950/A 150mA Ultra Low Dropout Voltage Regulator TO-92 Pin Definition: 1. Output 2. Ground 3. Input TO-252 (DPAK) Pin Definition: 1. Input 2. Ground 3. Output General Description The TS2950/A are low power voltage regulators. These devices are excellent choice for use in battery-powered applications such as cordless telephone, radio control systems, and portable computers. The TS2950/A is features very low quiescent current (75uA Typ.) and very low drop output voltage (Typ. 40uV at light load and 380 mV at 100 mA). This includes a tight initial tolerance of 1% (A version), extremely good load and line regulation 0.05% typ. and very low output temperature coefficient, making the TS2950/A useful as a lowpower voltage reference. Features ● ● ● ● ● ● ● ● Extremely low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Need only 1uF for stability Use as Regulator or Reference Stable with low-ESR output capacitors Current and thermal limiting Ordering Information Part No. TS2950CTxx B0 TS2950CTxx A3 TS2950ACTxx B0 TS2950ACTxx A3 TS2950CPxx RO TS2950ACPxx RO Package TO-92 TO-92 TO-92 TO-92 TO-252 TO-252 Packing 1Kpcs / Bulk 2Kpcs / Ammo 1Kpcs / Bulk 2Kpcs / Ammo 2.5Kpcs / 13” reel 2.5Kpcs / 13” reel Application ● ● ● ● ● Battery powered systems SMPS Post-Regulator Voltage Reference Portable consumer equipment Radio control system Note: Where xx denotes voltage option, available are 50= 5.0V 33= 3.3V 30= 3.0V Contact factory for additional output voltage option. Absolute Maximum Rating Parameter Input Supply Voltage Power Dissipation Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering 5 second) Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case Symbol VIN Pd TJ TSTG TSTG RӨJA RӨJC Limit TO-92 TO-252 - 0.3 ~ +30 Internally Limited - 40 ~ +125 -65 ~ +150 260 160 80 100 2.87 Unit V W o o o o o C C C C/W C/W 1/10 Version: D11 TS2950/A 150mA Ultra Low Dropout Voltage Regulator Electrical Characteristics (VIN=VOUT +1V, Ta=25oC, unless otherwise specified.) Parameter Test Conditions (note 2) Tj=25 C Output Voltage Full Operating temp 100uA≤ IL ≤100mA Tj≤Tj(max) Output Voltage Temperature Coefficient Line Regulation (Note 3) Load Regulation (Note 3) Dropout Voltage (Note 5) Ground Current Dropout Ground Current Current Limit Thermal Regulation Output Noise, 10Hz to 100KHz CL= 1uF CL= 200uF CL= 3.3uF (Note 1) 6V≤ VIN ≤30V (Note 4) 100uA≤ IL ≤100mA IL=100uA IL=100mA IL=100uA IL=100mA VIN= 4.5V, IL= 100uA VOUT= 0 o Min |0.985| |0.990| |0.980| |0.988| |0.975| |0.985| ------------- Typ Max |1.015| |1.010| |1.020| |1.012| |1.025| |1.015| 150 100 0.2 0.3 80 450 120 12 170 250 0.2 ---- Unit TS2950 TS2950A TS2950 TS2950A TS2950 TS2950A TS2950 TS2950A 5.0 3.3 3.0 V 50 20 0.04 0.1 50 380 75 8 110 160 0.05 430 160 100 ppm/ o C % % mV mV uA mA uA mA %W uV/ rms Note 1: Output voltage temperature coefficients defined as the worst case voltage change divided by the total temperature range. o Note 2: Unless otherwise specified all limits guaranteed for Tj= 25 C, Vin= 6V, IL= 100uA and CL= 100uF. Note 3: Regulation 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 is guaranteed by design to 0.2%. 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 value of programmed output voltage, the minimum input supply voltage of 2V (2.3V over temperature) must be taken in to account. 2/10 Version: D11 TS2950/A 150mA Ultra Low Dropout Voltage Regulator Application Hints External Capacitors For the stability of the TS2950/A is requires a 1.0uF(0.22uF is recommended for 3.0V & 3.3V) or greater capacitor between output and ground. Oscillation could occur without this capacitor. The tantalum or aluminum electrolytic o works fine; could use the film type work but are not cost efficient. For the operation of below -25 C solid tantalum is o recommended since the many aluminum type have electrolytes the freeze at about -30 C. The ESR of about 5 or less and resonant frequency above 500KHz are most important parameter in the value of Capacitor. The Capacitors value can be increased without any limit. At lower values of output current, less output capacitance is required for stability. For the currents below 10mA the value of capacitor can be reduce to 0.33uF and 0.1uF for 1mA. The TS2950/A is not like other low dropout regulators will remain stable and regulation with no load in addition to the internal voltage divider. This feature very important in application, it is like CMOS RAM keep-alive. If at the input of TS2950/A connected to battery or between AC filter capacitor and input is 10 inches wire then 1uF tantalum or aluminum electrolytic capacitor should be connected between input and ground. This could cause more problems when using higher value of external to set the output voltage. To fix this problem increasing output capacitance to 3.3uF. Reducing Output Noise It could be an advantage to reduce the AC noise present at the output. One method is to reduce the regulator bandwidth by increasing the value of the output capacitor. This is the only method that noise could reduce on the TS2950/A, but is relatively inefficient, as increasing capacitor from 1uF to 220uF only decreases the noise from 430uV to 160uVrms for a 100KHz bandwidth at 5V output. the output capacitor must be increased to 3.3uF to maintain stability. These change the output noise from 430uV/rms for a 100 kHz bandwidth 5V, 3.3V & 3V output. Block Diagram and Typical Applications Circuit 3/10 Version: D11 TS2950/A 150mA Ultra Low Dropout Voltage Regulator Electrical Characteristics Curve (Ta = 25oC, unless otherwise noted) Figure 1. Line Regulation vs. Input Voltage Figure 2. Load Regulation vs. Output Current Figure 3. Ground Pin Current vs. Output Current Figure 4. Ground Pin Current vs. Input Voltage Figure 5. Dropout Voltage vs. Output Current Figure 6. Load Transient Response 4/10 Version: D11 TS2950/A 150mA Ultra Low Dropout Voltage Regulator TO-252 Mechanical Drawing Marking Diagram XX = Voltage Code (50 = 5.0V, 33 = 3.3V, 30 = 3.0V) Y = Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code 5/10 Version: D11 TS2950/A 150mA Ultra Low Dropout Voltage Regulator TO-92 Mechanical Drawing DIM A B C D E F G H TO-92 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 4.30 4.70 0.169 0.185 4.30 4.70 0.169 0.185 12.70 15.49 0.500 0.609 0.39 0.49 0.015 0.019 1.18 1.28 0.046 0.050 3.30 3.70 0.130 0.146 1.27 1.31 0.050 0.051 0.33 0.43 0.013 0.017 Marking Diagram XX = Voltage Code (50 = 5.0V, 33 = 3.3V, 30 = 3.0V) Y = Year Code M = Month Code (A=Jan, B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep, J=Oct, K=Nov, L=Dec) L = Lot Code 6/10 Version: D11 TS2950/A 150mA Ultra Low Dropout Voltage Regulator Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 7/10 Version: D11