TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator TO-220 TO-263 2 (D PAK) Pin Definition: TS39500 1. Input 2. Ground (tab) 3. Output TO-220-5L Pin Definition: TS39501xx TS39502 1. Enable 1. Enable 2. Input 2. Input 3. Ground 3. Ground 4. Output 4. Output 5. Flag 5. Adjust TO-263-5L 2 (D PAK) TS39503xx 1. Enable 2. Input 3. Ground 4. Output 5. Sense General Description TS39500/1/2/3 are 5A ultra low dropout linear voltage regulators that provide low voltage, high current output with a minimum of external components. TS39500/1/2/3 offers extremely low dropout (typically 400mV at 5A) and low quiescent current (typically 36mA at 5A). TS39500/1/2/3 is ideal for PC add-in cards that need to convert from standard 3.3V to 2.5V or 2.5V to 1.8V. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the TS39501/2/3/4 to provide 2.5V from a supply as low as 3V, and 1.8V from a supply as low as 2.5V. TS39500/1/2/3 also has fast transient response for heavy switching applications. The device requires only 47uF of output capacitor to maintain stability and achieve fast transient response. On TS39500/1/2/3, the enable pin may be tied to input voltage if it is not required for enable control. Features ● ● ● ● ● ● ● ● ● Ordering Information Dropout voltage typically 0.4V @ Io=5A Output Current up to 5A Low Ground Current Extremely Fast Transient Response Current Limit & Thermal Shutdown Reversed Leakage & Reverse Battery Protection Error Flag Signals Output (TS39501 only) Adjustable Version (TS39502 only) Output Voltage Sense (TS39503/4 only) Application ● ● ● ● ● ● ● TM PowerPC Power Supplies Battery Powered Equipment Consumer and Personal Electronics High Efficiency Linear Power Supplies SMPS Post Regulator and DC to DC Modules High-efficiency Post Regulator for Switching Supply Low Voltage Microcontrollers and Digital Logic Part No. Package Packing TS39500CZxx C0 TO-220 50pcs / Tube TS39500CMxx RN TO-263 800pcs / 13” Reel TS39501CZ5xx C0 TO-220-5L 50pcs / Tube TS39501CM5xx RN TO-263-5L 800pcs / 13” Reel TS39502CZ5 C0 TO-220-5L 50pcs / Tube TS39502CM5 RN TO-263-5L 800pcs / 13” Reel TS39503CZxx C0 TO-220-5L 50pcs / Tube TS39503CMxx RN TO-263-5L 800pcs / 13” Reel Note: Where xx denotes voltage option, available are 50=5V, 33=3.3V, 25=2.5V, 18=1.8V Contact to factory for addition output voltage option. 1/12 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator Absolute Maximum Rating (Note 1) Supply Voltage Enable Voltage Storage Temperature Range VIN -20V ~ +20 VEN TSTG +20 -65 ~ +150 o Lead Soldering Temperature (260 C) ESD V V C o 5 (Note 3) S Operating Rating (Note 2) Operation Input Voltage VIN (operate) +2.25 ~ +16 V Operation Enable Voltage Power Dissipation (Note 4) VEN (operate) PD +2.25 ~ +16 Internally Limited V W TJ -40 ~ +125 Operating Junction Temperature Range o C Electrical Characteristics o VIN = VOUT + 1V, VIN =2.5V for fixed reference output voltage, Venable= 2.25V, Ta = 25 C, unless otherwise specified. Parameter Fixed Output Voltage Fixed Reference Output Voltage Conditions 10mA ≤ IL ≤ 5A, Vo+1V ≤ VIN ≤ 8V Min Typ Max Unit 0.980|Vo| VOUT 1.020|Vo| V 0.980|Vo| Line Regulation IL=10mA 10mA ≤ IL ≤ 5A, 2.5V ≤ VIN ≤ 8V IL=10mA, Vo+1V ≤ VIN ≤ 8V Load Regulation VIN =Vout+1V, 10mA≤IL≤5A Fixed Reference Output Voltage 0.970|Vo| -- 0.05 0.5 % -- 0.2 1.0 % ------ 40 65 185 250 400 6 10 17 45 4.5 100 200 --550 10 20 ---- ppm/ C 0.980|Vo| 0.970|Vo| 1.24 1.020|Vo| 1.030|Vo| V -- 40 120 nA (Note 8) --- 20 0.1 --- ppm/ C o nA/ C Low (OFF) -- -- 0.8 High (ON) VEN =2.25V 2.25 -- --- -75 VEN =0.8V -- -- 4 Output Voltage Temp. Coefficient Dropout Voltage (Note 5) Quiescent Current (Note 6) Current Limited 1.020|Vo| 1.24 (VREF) IL=100mA IL=750mA Δ VOUT = -1% IL=1.5A IL=5A IL=100mA IL=750mA VIN= VOUT +1V IL=1.5A IL=5A VOUT=0, VIN =VOUT+1V ----- 1.030|Vo| V o mV mA A Reference (TS39502) Reference Voltage Reference Voltage (Note 7) Adjust Pin Bias Current Reference Voltage Temp. Coefficient Adjust Pin Bias Current Temp. Coefficient o Enable Input (TS39501/2/3/4) Input Logic Voltage Enable Pin Input Current 2/12 V uA Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator Electrical Characteristics (Continue) Flag Output (TS39501) Output Leakage Current VOH=16V -- -- 2 uA Output Low Voltage (Note 9) Upper Threshold Voltage Lower Threshold Voltage VIN=0.9 * VOUT, IOL=250uA % of VOUT % of VOUT --93 ---- 400 99 -- mV % % -- 1 -- % Hysteresis Thermal Performance Condition Package type Typ Unit Thermal Resistance Junction to Case TO-220 / TO-220-5L 80 o C/W TO-263 / TO-263-5L 80 Note 1. Exceeding the absolute maximum ratings may be damaged the device. Note 2. The device is not guaranteed to function outside its operating rating. Note 3. Devices are ESD sensitive. Handling precautions recommended. Note 4. PD(max) = (TJ(max) - Ta) + ӨJA, where ӨJA depends upon the printed circuit layout. See ”Applications Information”. o Note 5. Output voltage temperature coefficient is ΔVOUT (worst case)+(TJ(max) – TJ(MIN)) where TJ(max) is +125 C and TJMIN) is o -40 C. Note 6. VDROP = VIN - VOUT when VOUT decreases to 99% of its nominal output voltage with VIN = VOUT + 1. For output voltages below 2.5V, dropout voltage is the input-to-output voltage differential with the minimum input voltage being 2.5V. Minimum input operating voltage is 2.5V Note 7. IGND is the quiescent current. IIN = IGND + IOUT Note 8. VEN <0.8V, VIN <8V and VOUT =0 Note 9. For 1.8V device, VIN = 2.25V (device is in dropout) Pin Description Pin Configuration Pin Description Enable Input TTL/COMS compatible input. Logic high is enable; logic low or open is shutdown Unregulated input: +16V maximum supply Ground Output Ground: Ground pin and TAB / heat sink are internally connected. Regulator output Flag (fixed voltage) Feed Back (adjustable) Sense Error Flag (output): Open-collector output. Active low indicates an output fault condition, if no used, leave open. Adjustment input: Feedback input. Connect to resistive voltage-divider network. Sense pin is the input to the error amplifier 3/12 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator Functional Diagram TS39500 Fixed Regulator Block Diagram TS39501/3/4 Fixed Regulator with Flag and Enable Block Diagram TS39502 Adjustable Regulator Block Diagram 4/12 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator Application Information The TS39500/1/2/3 are high performance with low dropout voltage regulator suitable for moderate to high current and voltage regulator application. Its 630mV dropout voltage at full load and over temperature makes it especially valuable in battery power systems and as high efficiency noise filters in post regulator applications. Unlike normal NPN transistor design, where the base to emitter voltage drop and collector to emitter saturation voltage limit the minimum dropout voltage, dropout performance of the PNP output of these devices is limited only by low Vce saturation voltage. The TS39500/1/2/3 is fully protected from damage due to fault conditions. Linear current limiting is provided. Output current during overload conditions is constant. Thermal shutdown the device when the die temperature exceeds the maximum safe operating temperature. Transient protection allows device survival even when the input voltage spikes above and below nominal. The output structure of these regulators allows voltages in excess of the desired output voltage to be applied without reverse current flow. Output Capacitor Requirement The TS39500/1/2/3 requires an output capacitor to maintain stability and improve transient response is necessary. The value of this capacitor is dependent upon the output current, lower currents allow smaller capacitors. TS39500/1/2/3 output capacitor selection is dependent upon the ESR of the output capacitor to maintain stability. When the output capacitor is 10uF or greater, the output capacitor should have an ESR less than 2Ω. This will improve transient response as well as promote stability. Ultra low ESR capacitors (<100mΩ), such as ceramic chip capacitors, may promote instability. These very low ESR levels may cause an oscillation and/or under damped transient response. A low ESR solid tantalum capacitor works extremely well and provides good transient response and stability over temperature aluminum electrolytes can also be used, as long as the ESR of the capacitor is <2Ω. The value of the output capacitor can be increased without limit. Higher capacitance values help to improve transient response and ripple rejection and reduce output noise. Input Capacitor Requirement An input capacitor of 1uF or greater is recommended when the device is more than 4” away from the bulk AC supply capacitance or when the supply is a battery. Small, surface mount, ceramic chip capacitors can be used for bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving the integrity of the output voltage. Minimum Load Current The TS39500/1/2/3 is specified between finite loads. If the output current is too small leakage currents dominate and the output voltage rises. A 10mA minimum load current is necessary for proper regulation. Adjustable Regulator Design The adjustable regulator versions (TS39502) is allow to programming the output voltage anywhere between 1.25 and the 16V maximum operating rating of the family. Two resistors are used. Resistors can be quite large up to 1MΩ, because of the very high input impedance and low bias current of the sense comparator, the resistor values are calculated by: Where Vout is the desired output voltage. Above application circuit shows component definition. Applications with widely varying load currents may scale the resistors to draw the minimum load current required for proper operation. 5/12 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator Application Information (Continue) Enable Input TS39501/2/3/4 versions feature an active-high enable (EN) input that allows ON/OFF control of the regulator. Current drain reduces to “zero” when the device is shutdown, with only micro-amperes of leakage current. The EN input has TTL/CMOS compatible thresholds for simple interfacing with logic interfacing. EN may be directly tied to VIN and pulled up to the maximum supply voltage. Error Flag TS39501 versions feature an Error Flag, which looks at the output voltage and signals an error condition when this voltage drops 5% below its expected value. The error flag is an open-collector output that pulls low under fault conditions. It may sink 10mA. Low output voltage signifies a number of possible problems, including an over-current fault (the device is in current limit) or low input voltage. The flag output is inoperative during over temperature shutdown conditions. A pull-up resistor from error flag to either VIN or VOUT is required for proper operation. For information regarding the minimum and maximum values of pull-up resistance, refer the graph as follow: Transient Response and 3.3V to 2.5V or 2.5V to 1.8V Conversion TS39500/1/2/3 has excellent transient response to variations in input voltage and load current. The device have been designed to respond quickly to load current variations and input voltage variations. Large output capacitors are not required to obtain this performance. A standard 10uF output capacitor, preferably tantalum, is all that is required. Larger values help to improve performance even further. By virtue of its low dropout voltage, this device does not saturate into dropout as readily as similar NPN base designs. When converting from 3.3V to 2.5V or 2.5V to 1.8V, the NPN based regulators are already operating in dropout, with typical dropout requirements of 1.2V or greater,. To convert down to 2.5V or 1.8V without operating in dropout, NPN based regulators require an input voltage of 3.7V at the very least. The TS39500/1/2/3 regulator will provide excellent performance with an input as low as 3.0V or 2.5V respectively. This gives the PNP based regulators a distinct advantage over older, NPN based linear regulators. Output Sense Sense pin can be connected to the load and traces the load voltage, TS39503/4 will adjust the output voltage to maintain the load at expected voltage. 6/12 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator Application Information (Continue) Thermal Characteristics TS39500/1/2/3 linear regulators are simple to use, the most complicated design parameters to consider are thermal characteristics, thermal design requires the following application specification parameters: Maximum ambient temperature, TA Output current, IOUT Output voltage, VOUT Input voltage, VIN Calculate the power dissipation of the regulator from these numbers and the device parameters from this datasheet, where the ground current is taken from data sheet. PD = (VIN – VOUT) x IOUT + VIN x IGND The heat sink thermal resistance is determined by: ӨSA = (TJ(MAX) – TA) / PD – (ӨJC + ӨCS) Where TJ(MAX) ≤ 125oC and ӨCS is between 0oC and 2oC /W. The heat sink may by significantly reduced in applications where the minimum input voltage is know and is large compared with the dropout voltage and distribute the heat between this resistor and the regulator. The low dropout properties of vertical PNP regulators allow significant reductions in regulator power dissipation and the associated heat sink without compromising performance. When this technique is employed, a capacitor of at least 1uF is needed directly between the input and regulator ground. Typical Application Circuit 2.5V/5A Regulator 2.5V/5A Regulator with Error Flag 7/12 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator TO-220 Mechanical Drawing DIM A B C D E F G H I J K L M N O P 8/12 TO-220 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 10.000 10.500 0.394 0.413 3.740 3.910 0.147 0.154 2.440 0.381 2.345 4.690 12.700 8.382 14.224 3.556 0.508 27.700 2.032 0.255 5.842 2.940 6.350 1.106 2.715 5.430 14.732 9.017 16.510 4.826 1.397 29.620 2.921 0.610 6.858 0.096 0.015 0.092 0.092 0.500 0.330 0.560 0.140 0.020 1.060 0.080 0.010 0.230 0.116 0.250 0.040 0.058 0.107 0.581 0.355 0.650 0.190 0.055 1.230 0.115 0.024 0.270 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator TO-263 Mechanical Drawing DIM A B C D E F G H I J 9/12 TO-263 DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 10.000 10.500 0.394 0.413 14.605 15.875 0.575 0.625 0.508 0.991 0.020 0.039 2.420 2.660 0.095 0.105 4.064 4.830 0.160 0.190 1.118 1.400 0.045 0.055 0.450 0.730 0.018 0.029 8.280 8.800 0.325 0.346 1.140 1.400 0.044 0.055 1.480 1.520 0.058 0.060 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator TO-220-5L Mechanical Drawing DIM A B C D E F G H I J K L M N 10/12 TO-220-5L DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 10.00 10.50 0.394 0.413 3.240 4.440 0.128 0.175 2.440 2.940 0.096 0.116 0.260 1.020 0.010 0.040 1.570 1.830 0.062 0.072 13.31 14.13 0.524 0.556 4.475 5.225 0.176 0.206 1.170 1.370 0.046 0.054 27.60 29.44 1.087 1.159 2.175 2.925 0.086 0.115 0.297 0.477 0.012 0.019 8.280 8.800 0.326 0.346 6.010 6.510 0.237 0.256 14.29 15.31 0.563 0.603 Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive Voltage Regulator TO-263-5L Mechanical Drawing DIM A B C D E F G H I J 11/12 TO-263-5L DIMENSION MILLIMETERS INCHES MIN MAX MIN MAX 9.70 10.54 0.382 0.415 14.60 15.87 0.575 0.625 0.69 0.94 0.027 0.037 1.524 2.032 0.060 0.080 4.30 4.70 0.169 0.185 1.22 1.40 0.048 0.055 2.24 2.82 0.088 0.111 0.36 0.56 0.014 0.022 8.50 9.20 0.330 0.362 1.40 MAX 0.055 MAX Version: A07 TS39500/1/2/3 5A Ultra Low Dropout Positive 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. 12/12 Version: A07