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| SENSITRON SEMICONDUCTOR TECHNICAL DATA DATA SHEET 4339, REV. - SHD526150 LINEAR VOLTAGE REGULATOR THREE TERMINAL-POSITIVE-ADJUSTABLE 3.0 Amp, Low Dropout Voltage TO-257 Hermetic Package Features: * * * * * * * * * * * Description: Three-Terminal Adjustable Operates Down to 1V Dropout Guaranteed Dropout Voltage at Multiple Current Levels On-Chip Thermal Limiting Line Regulation: 0.035% Load Regulation: 0.20% Fixed Versions Available Electrically Equivalent to LT(R)1085 High Efficiency Linear Regulators Post Regulator for Switching Supplies Constant Current Regulators SYMBOL Vin Vref Vout/Vin Vout/Vin Vout/Iout VDO ILIM ILIM IAdj IAdj IMIN IQ Vin/Vout Vout/T Vout/T (% of Vout) JC This positive adjustable regulator is designed to provide 3A with high efficiency using simple 3-terminal configurations. All internal circuitry is designed to operate down to 1V input-to-output differential and the dropout voltage is fully specified as a function of load current. Dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. Available in fixed voltages. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures. Applications: ELECTRICAL CHARACTERISTICS -55C < TA < 125C (UNLESS OTHERWISE SPECIFIED) PARAMETER Input Voltage Reference Voltage Line Regulation Note(1,2) Line Regulation Note(1,2) Load Regulation Note(1,2,3) Dropout Voltage Current Limit Current Limit Adjust Pin Adjust Pin Current Change Minimum Load Current Quiescent Current Ripple Rejection Thermal Regulation Temperature Stability Long Term Stability RMS Output Noise Thermal Resistance (J-C) Test Conditions 1.5V < (Vin-Vout) < 25V, 10mA < Iout < 2A 1.5V<(Vin-Vout)<15V,Iout=10mA TA = 25C (Vin-Vout) = 15V to 35V Iout =10 mA (Vin-Vout) = 3V 10mA 1.220 TYP 1.250 0.035 0.050 0.60 1.30 4.00 0.50 55 0.2 5 8 72 0.004 0.50 0.30 0.003 - Max. 35 1.270 0.20 0.50 1.00 1.50 120 5 10 13 0.02 1.0 4 Units V V % % % V A A A A mA mA dB %/W % % % C/W 3.20 0.20 60 Notes: 1) See thermal regulation specification for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2) Line and load regulation is guaranteed up to the maximum power dissipation in the package. Input/output differential and the output current determine power dissipation. Guaranteed maximum output power will not be available over the full / input/output voltage range. 3) IFull Load is defined as the maximum value of output load current as a function of the input-to-output voltage. IFull Load is equal to 3.0 Amps. * 221 West Industry Court * Deer Park, NY 11729-4681 * Phone (631) 586-7600 * Fax (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * SHD526150 SENSITRON TECHNICAL DATA DATA SHEET 4339, REV. D ro po ut V oltag e vs O utp ut C u rren t INPUT/OUTPUT VOLTAGE DIFFERENTIAL (V) 5V, 3 .0 A Re g u la to r VI N 6.5V IN OUT ADJ 10F 365 1% *REQUIRED FOR STABILITY 121 1% 5V AT 3.0A 2 + + 10F* TANTALUM 1 0 0 50% OUTPUT CURRENT 100% MINIMUM INPUT/OUTPUT DIFFERENTIAL (V) Dropout Voltage 2 INDICATES GUARANTEED TEST POINT Short-Circut Current 6 OUTPUT VOLTAGE DEVIATION (%) SHORT-CIRCUIT CURRENT (A) 0.10 Load Regulation I = 3A -55C T J 150C 0C T J 125C 1 TJ= 150C TJ= 25C TJ = -55C 5 4 3 -55C 2 IFU L L L OA D 1 0 GUARANTEED 0.05 0 .00 - 0.05 25C 150C - 0.10 - 0.15 0 0 1 2 3 OUTPUT CURRENT (A) 4 0 30 35 5 10 15 20 25 INPUT/OUTPUT DIFFERENTIAL (V) - 0.20 -50 -25 0 5 0 75 100 25 T EM PER AT UR E (C ) 125 150 100 90 RIPPLE REJECTION (dB) Ripple Rejec tion V RIPP LE 3V PP VRIPPLE 0.5VP -P RIPPLE REJECTION (dB) Ripple Rejection vs Current 100 90 80 70 60 50 40 30 20 10 100k 0 0 VO UT = 5 V CA DJ = 25 F C O UT = 25 F 0.5 2.5 1.0 1.5 2.0 OUTPUT CURRENT (A) 3.0 10 fR = 120Hz VRIPPLE 3VP-P POWER (W) Maximum Power Dissipation* 50 80 70 60 50 40 30 20 10 0 10 ( VIN- VOUT) >3V 40 (VIN- V OUT) >V DROPOUT fR = 20kHz V RIPPL E 0 .5 VP-P 30 20 C ADJ= 200 F AT FREQU EN CIES < 60 Hz C ADJ= 25 F AT FR EQU ENC IES > 60H z I OUT = 3A 100 1k 10k FREQUENCY (Hz) 0 50 60 70 80 90 100 110 120 130 140 15 CASE TEMPERATURE (C) * AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE * 221 West Industry Court * Deer Park, NY 11729-4681 * Phone (631) 586-7600 * Fax (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * SHD526150 SENSITRON TECHNICAL DATA DATA SHEET 4339, REV. - 10 MINIMUM OPERATING CURRENT (mA) Minimum Operating Current 1.27 Temperature Stability 100 90 REFERENCE VOLTAGE (V) Adjust Pin Current 9 1.26 ADJUSTPINCURRENT ( A) 8 7 6 5 4 3 2 1 0 0 TJ = -55C 5 10 15 20 25 30 35 INPUT/OUTPUT DIFFERENTIAL (V) TJ =25C TJ =150C 80 70 60 50 40 30 20 10 0 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) 1.25 1.24 1.23 -50 -25 0 25 50 75 100 125 150 TEMPERATURE (C) Load Transient Response 0.3 OUTPUT VOLTAGE DEVIATION (V) Line Transient Response 60 OUTPUT VOLTAGE DEVIATION (mV) 0.2 0.1 0 -0.1 -0.2 -0.3 3 2 1 0 0 CADJ= 0 CADJ = 1 F 40 20 0 -20 -40 -60 14 13 12 11 0 CAD J= 0 CADJ = 1 F LOAD CURRENT (A) C IN = 1 F CO UT = 10 F TANTALUM VOUT =10V VI N =13V PRELOAD =100mA 50 TIME ( s) 100 DEVIATION (V) INPUT V OUT = 10V II N = 0.2A C I N = 1 F TANTALUM C OU T = 10 F TANTALUM 100 TIME ( s) 200 Adjustable Regulator Configuration or Changing Voltage of Fixed Regulator VI N V IN Optional Configuration to Reduce Low Side Parasitic Resistance Effects RPL HI SIDE PARASITIC LINE RESISTANCE IN ADJ OUT + IN C1 10 F ADJ I ADJ 55 A OUT VREF R1 R2 + VOUT C 2 22 F R1 R R2 RP H LO SIDE PARASITIC LINE RESISTANCE V OU T = VREF (1 + R2/R1) + IADJ (R2) * 221 West Industry Court * Deer Park, NY 11729-4681 * Phone (631) 586-7600 * Fax (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * SHD526150 SENSITRON TECHNICAL DATA DATA SHEET 4339, REV. - Block D ia gram VI N THERMAL LIMIT V OUT V AD J * 221 West Industry Court * Deer Park, NY 11729-4681 * Phone (631) 586-7600 * Fax (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * + - SHD526150 SENSITRON TECHNICAL DATA DATA SHEET 4339, REV. - MECHANICAL DIMENSIONS: in Inches / mm .200 (5.08 .190 4.82) .045 (1.14 .035 0.89) .150 (3.81 Dia. .140 3.56) .420 (10.67 .410 10.41) .537 (13.64 .527 13.39) 1.132 (28.75 1.032 26.21) .665 (16.89 .645 16.38) .430 (10.92 .410 10.41) 123 .035 (0.89 .025 0.63) 3 Places .100(2.54) BSC 2 Places .120(3.05) BSC TO-257 PINOUT TABLE TYPE TO - 257 3A Adjustable Regulator PIN 1 ADJ PIN 2 VOUT PIN 3 VIN DISCLAIMER: 1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s). 2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment, medical equipment , and safety equipment) , safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement . 3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems that may result from applications of information, products or circuits described in the datasheets. 4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from use at a value exceeding the absolute maximum rating. 5- No license is granted by the datasheet(s) under any patents or other rights of any third party or Sensitron Semiconductor. 6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of Sensitron Semiconductor. 7- The products (technologies) described in the datasheet(s) are not to be provided to any party whose purpose in their application will hinder maintenance of international peace and safety nor are they to be applied to that purpose by their direct purchasers or any third party. When exporting these products (technologies), the necessary procedures are to be taken in accordance with related laws and regulations. * 221 West Industry Court * Deer Park, NY 11729-4681 * Phone (631) 586-7600 * Fax (631) 242-9798 * * World Wide Web Site - http://www.sensitron.com * E-Mail Address - sales@sensitron.com * |
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