LM237 LM337 SLVS047E LM237KC LM337KTER LM337KC MPFM001E 4073375/F MO-169 - Datasheet Archive

 

3-TERMINAL ADJUSTABLE REGULATORS D D D D D D Output Voltage Range Adjustable From ­1.2 V to ­37 V LM237, LM337 . . . KC

 

LM237 LM237, LM337 LM337 3-TERMINAL ADJUSTABLE REGULATORS D D D D D D Output Voltage Range Adjustable From ­1.2 V to ­37 V LM237 LM237, LM337 LM337 . . . KC (TO-220) PACKAGE (TOP VIEW) Output Current Capability of 1.5 A Max Input Regulation Typically 0.01% Per Input-Voltage Change Output Regulation Typically 0.3% OUTPUT INPUT ADJUSTMENT LM337 LM337 . . . KTE PACKAGE (TOP VIEW) Peak Output Current Constant Over Temperature Range of Regulator OUTPUT INPUT D INPUT SLVS047E SLVS047E ­ NOVEMBER 1981 ­ REVISED MAY 2003 Ripple Rejection Typically 77 dB Direct Replacement for National Semiconductor LM237 LM237 and LM337 LM337 INPUT ADJUSTMENT description/ordering information The LM237 LM237 and LM337 LM337 are adjustable 3-terminal negative-voltage regulators capable of supplying in excess of ­1.5 A over an output voltage range of ­1.2 V to ­37 V. They are exceptionally easy to use, requiring only two external resistors to set the output voltage and one output capacitor for frequency compensation. The current design has been optimized for excellent regulation and low thermal transients. In addition, the LM237 LM237 and LM337 LM337 feature internal current limiting, thermal shutdown, and safe-area compensation, making them virtually immune to failure by overloads. The LM237 LM237 and LM337 LM337 serve a wide variety of applications, including local on-card regulation, programmable output-voltage regulation, and precision current regulation. ORDERING INFORMATION ­25°C to 150°C 0°C to 125°C ORDERABLE PART NUMBER PACKAGE TJ TOP-SIDE MARKING TO-220 (KC) Tube of 50 LM237KC LM237KC LM237 LM237 POWER-FLEX (KTE) Reel of 2000 LM337KTER LM337KTER LM337 LM337 TO-220 (KC) Tube of 50 LM337KC LM337KC LM337 LM337 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 2003, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 LM237 LM237, LM337 LM337 3-TERMINAL ADJUSTABLE REGULATORS SLVS047E SLVS047E ­ NOVEMBER 1981 ­ REVISED MAY 2003 schematic diagram ADJUSTMENT OUTPUT INPUT absolute maximum ratings over operating temperature ranges (unless otherwise noted) Input-to-output differential voltage, VI ­ VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ­40 V Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ­65°C to 150°C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. package thermal data (see Note 1) POWER-FLEX (KTE) High K, JESD 51-5 JC 3°C/W JA 23°C/W TO-220 (KC) High K, JESD 51-5 3°C/W 19°C/W PACKAGE BOARD NOTE 1: Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) ­ TA)/JA. Operating at the absolute maximum TJ of 150°C can affect reliability. recommended operating conditions MIN IO TJ 2 Output current MAX |VI ­ VO| 40 V, P 15 W 10 1500 |VI ­ VO| 10 V, P 15 W 6 1500 LM237 LM237 ­25 150 LM337 LM337 0 125 O erating Operating virtual junction tem erature temperature POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 UNIT mA °C LM237 LM237, LM337 LM337 3-TERMINAL ADJUSTABLE REGULATORS SLVS047E SLVS047E ­ NOVEMBER 1981 ­ REVISED MAY 2003 electrical characteristics over recommended ranges of operating virtual junction temperature (unless otherwise noted) TEST CONDITIONS PARAMETER Input regulation VO = ­10 V, VO = ­10 V, Output regulation CADJ = 10 µF MAX 0.02 f = 120 HZ f = 120 HZ, MIN TYP MAX 0.02 0.01 0.04 0.05 0.02 0.07 60 66 60 77 |VO| 5 V IO = 10 mA to 1.5 A, , TJ = 25°C LM337 LM337 TYP 0.01 TJ = 25°C TJ = MIN to MAX VI ­ VO = ­3 V to ­40 V 3 40 Ripple rejection LM237 LM237 MIN 66 0.3% 50 0.5% 0.3% 50 70 |VO| 5 V 1% 1.5% Output-voltage change with temperature TJ = MIN to MAX 0.6% Output-voltage long-term drift After 1000 h at TJ = MAX and VI ­ VO = ­40 V 0.3% Output noise voltage f = 10 HZ to 10 kHZ, Minimum output current to maintain regulation Peak output current mV 1% |VO| 5 V IO = 10 mA to 1 5 A 1.5 %/V dB 77 25 |VO| 5 V UNIT TJ = 25°C mV 0.6% 1% 0.3% 0.003% 1% 0.003% |VI ­ VO| 40 V 2.5 5 2.5 10 |VI ­ VO| 10 V 1.2 3 1.5 6 mA |VI ­ VO| 15 V 1.5 |VI ­ VO| 40 V, TJ = 25°C 2.2 1.5 2.2 0.24 0.4 0.15 0.4 Adjustment-terminal current A 65 Change in adjustment-terminal current VI ­ VO = ­ 2.5 V to ­40 V, IO = 10 mA to MAX VI ­ VO = ­ 3 V to ­40 V, IO = 10 mA to 1.5 A, 15A P rated dissipation TJ = 25°C 65 100 µA 2 5 2 5 µA ­1.225 ­1.25 ­1.275 ­1.213 ­1.25 ­1.287 ­1.2 ­1.25 ­1.3 ­1.2 ­1.25 ­1.3 TJ = 25°C, g Reference voltage (output to ADJ) 100 TJ = MIN to MAX V Thermal regulation Initial TJ = 25°C, 10-ms pulse 0.002 0.02 0.003 0.04 %/W Unless otherwise noted, these specifications apply for the following test conditions |VI ­ VO| = 5 V and IO = 0.5 A. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. All characteristics are measured with a 0.1-µF capacitor across the input and a 1-µF capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 3 LM237 LM237, LM337 LM337 3-TERMINAL ADJUSTABLE REGULATORS SLVS047E SLVS047E ­ NOVEMBER 1981 ­ REVISED MAY 2003 electrical characteristics, TJ = 25°C TEST CONDITIONS PARAMETER Input regulation Ripple rejection Output regulation IO = 10 mA to 1 5 A 1.5 Output noise voltage f = 10 HZ to 10 kHZ Minimum output current to maintain regulation Peak output current f = 120 HZ CADJ = 10 µF, f = 120 HZ Reference voltage (output to ADJ) MAX 0.04 60 66 50 |VO| 5 V 0.3% UNIT %/V dB 77 |VO| 5 V mV 1% 0.003% |VI ­ VO| 40 V 2.5 10 |VI ­ VO| 10 V 1.5 6 |VI ­ VO| 15 V 1.5 2.2 |VI ­ VO| 40 V 0.15 0.4 mA A 65 VI ­ VO = ­ 2.5 V to ­40 V, VI ­ VO = ­ 3 V to ­40 V, P rated dissipation IO = 10 mA to MAX IO = 10 mA to 1.5 A, ­1.213 100 µA 2 Adjustment-terminal current Change in adjustment-terminal current TYP 0.01 VI ­ VO = ­3 V to ­40 V VO = ­10 V, VO = ­10 V, LM237 LM237, LM337 LM337 MIN 5 µA ­1.25 ­1.287 V Unless otherwise noted, these specifications apply for the following test conditions |VI ­ VO| = 5 V and IO = 0.5 A. All characteristics are measured with a 0.1-µF capacitor across the input and a 1-µF capacitor across the output. Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input. 4 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 LM237 LM237, LM337 LM337 3-TERMINAL ADJUSTABLE REGULATORS SLVS047E SLVS047E ­ NOVEMBER 1981 ­ REVISED MAY 2003 APPLICATION INFORMATION LM237 LM237 or LM337 LM337 OUTPUT INPUT VI VO ADJUSTMENT R1 C1 C2 + + R2 R1 is typically 120 . R2 + R1 ­ V O ­ 1.25 *1 where VO is the output in volts. C1 is a 1-µF solid tantalum capacitor required only if the regulator is more than 10 cm (4 in) from the power-supply filter capacitor. C2 is a 1-µF solid tantalum or 10-µF aluminum electrolytic capacitor required for stability. Figure 1. Adjustable Negative-Voltage Regulator LM237 LM237 or LM337 LM337 RS VI INPUT OUTPUT VO ADJUSTMENT RS = 1.25 V ILIMIT Figure 2. Current-Limiting Circuit POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 5 MECHANICAL DATA MPFM001E MPFM001E ­ OCTOBER 1994 ­ REVISED JANUARY 2001 KTE (R-PSFM-G3) PowerFLEXTM PLASTIC FLANGE-MOUNT 0.375 (9,52) 0.080 (2,03) 0.070 (1,78) 0.365 (9,27) 0.360 (9,14) 0.050 (1,27) 0.040 (1,02) 0.350 (8,89) 0.220 (5,59) NOM 0.010 (0,25) NOM Thermal Tab (See Note C) 0.360 (9,14) 0.350 (8,89) 0.295 (7,49) NOM 0.320 (8,13) 0.310 (7,87) 0.420 (10,67) 0.410 (10,41) 1 3 0.025 (0,63) 0.031 (0,79) 0.100 (2,54) Seating Plane 0.004 (0,10) 0.010 (0,25) M 0.005 (0,13) 0.001 (0,03) 0.200 (5,08) 0.041 (1,04) 0.031 (0,79) 0.010 (0,25) NOM Gage Plane 3°­ 6° 0.010 (0,25) 4073375/F 4073375/F 12/00 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. The center lead is in electrical contact with the thermal tab. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15). Falls within JEDEC MO-169 MO-169 PowerFLEX is a trademark of Texas Instruments. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 MECHANICAL DATA MSOT007A MSOT007A ­ JANUARY 1995 ­ REVISED SEPTEMBER 1995 KC (R-PSFM-T3) PLASTIC FLANGE-MOUNT PACKAGE 0.120 (3,05) 0.100 (2,54) 0.420 (10,67) 0.380 (9,65) 0.156 (3,96) DIA 0.146 (3,71) 0.185 (4,70) 0.175 (4,46) (see Note H) 0.052 (1,32) 0.048 (1,22) 0.270 (6,86) 0.230 (5,84) (see Note H) 0.625 (15,88) 0.560 (14,22) 0.125 (3,18) (see Note C) (see Note F) 0.250 (6,35) MAX 0.562 (14,27) 0.500 (12,70) 1 0.035 (0,89) 0.029 (0,74) 0.010 (0,25) M 3 0.070 (1,78) 0.045 (1,14) 0.122 (3,10) 0.102 (2,59) 0.025 (0,64) 0.012 (0,30) 0.100 (2,54) 0.200 (5,08) 4040207 / B 01/95 NOTES: A. B. C. D. E. F. G. H. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Lead dimensions are not controlled within this area. All lead dimensions apply before solder dip. The center lead is in electrical contact with the mounting tab. The chamfer is optional. Falls within JEDEC TO-220AB Tab contour optional within these dimensions POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI's standard warranty. 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