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Details, datasheet, quote on part number:LM337Y
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| Part: | LM337Y |
| Category: | Power Management => Regulators => Linear Voltage Regulators |
| Description: | ti LM337, 3-Terminal, 1.5A Adjustable Negative Voltage Regulator |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download LM337Y datasheet File size : 201 kB |
| Request For quote: | Find where to buy LM337Y
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Datasheet text preview:
LM237, LM337 3-TERMINAL ADJUSTABLE REGULATORS
SLVS047G NOVEMBER 1981 REVISED SEPTEMBER 2003
D D D D D D D
Output Voltage Range Adjustable From 1.2 V to 37 V Output Current Capability of 1.5 A Max Input Regulation Typically 0.01% Per Input-Voltage Change Output Regulation Typically 0.3% Peak Output Current Constant Over Temperature Range of Regulator Ripple Rejection Typically 77 dB Direct Replacement for Industry-Standard LM237 and LM337
LM237, LM337 . . . KC (TO-220) PACKAGE (TOP VIEW) INPUT OUTPUT INPUT ADJUSTMENT
LM337 . . . KTE OR KTP PACKAGE (TOP VIEW) OUTPUT INPUT INPUT ADJUSTMENT
description/ordering information
The LM237 and 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 and LM337 feature internal current limiting, thermal shutdown, and safe-area compensation, making them virtually immune to failure by overloads. The LM237 and LM337 serve a wide variety of applications, including local on-card regulation, programmable output-voltage regulation, and precision current regulation. ORDERING INFORMATION
TJ 25°C to 150°C 125°C 0°C to 125 C TO-220 (KC) PowerFLEX (KTE) PowerFLEX (KTP) TO-220 (KC) PACKAGE Tube of 50 Reel of 2000 Reel of 3000 Tube of 50 ORDERABLE PART NUMBER LM237KC LM337KTER LM337KTPR LM337KC TOP-SIDE MARKING LM237 LM337 L337
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. PowerFLEX is a trademark of Texas Instruments.
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.
Copyright 2003, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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LM237, LM337 3-TERMINAL ADJUSTABLE REGULATORS
SLVS047G NOVEMBER 1981 REVISED SEPTEMBER 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)
PACKAGE PowerFLEX (KTE) PowerFLEX (KTP) TO-220 (KC) BOARD High K, JESD 51-5 High K, JESD 51-5 High K, JESD 51-5 JC 3°C/W 19°C/W 3°C/W JA 23°C/W 28°C/W 19°C/W
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 Output current Operating virtual junction temperature |VI VO| 40 V, |VI VO| 10 V, P 15 W P 15 W LM237 LM337 10 6 25 0 MAX 1500 1500 150 125 UNIT mA °C
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POST OFFICE BOX 655303
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LM237, LM337 3-TERMINAL ADJUSTABLE REGULATORS
SLVS047G NOVEMBER 1981 REVISED SEPTEMBER 2003
electrical characteristics over recommended ranges of operating virtual junction temperature (unless otherwise noted)
PARAMETER Input regulation Ripple rejection TEST CONDITIONS VI VO = 3 V to 40 V VO = 10 V, VO = 10 V, TJ = 25°C TJ = MIN to MAX f = 120 HZ f = 120 HZ, CADJ = 10 µF |VO| 5 V |VO| 5 V |VO| 5 V |VO| 5 V 0.6% 0.3% 66 LM237 MIN TYP 0.01 0.02 60 77 25 0.5% 50 1% 0.6% 0.3% 66 MAX 0.02 0.05 MIN LM337 TYP 0.01 0.02 60 77 50 1% 70 1.5% mV MAX 0.04 0.07 UNIT %/V dB mV
Output regulation
IO = 10 mA to 1.5 A, TJ = 25°C IO = 10 mA to 1.5 A
Output-voltage change with temperature Output-voltage long-term drift Output noise voltage Minimum output current to maintain current regulation Peak output current Adjustment-terminal current Change in adjustment-terminal current Reference voltage (output to ADJ)
TJ = MIN to MAX After 1000 h at TJ = MAX and VI VO = 40 V f = 10 HZ to 10 kHZ, |VI VO| 40 V |VI VO| 10 V |VI VO| 15 V |VI VO| 40 V, TJ = 25°C 1.5 0.24 TJ = 25°C
0.3% 0.003% 2.5 1.2 2.2 0.4 65
1%
0.3% 0.003%
1%
5 3 1.5 0.15 100
2.5 1.5 2.2 0.4 65
10 mA 6 A 100 µA µA
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, P rated dissipation
TJ = 25°C,
2 1.225 1.2 1.25 1.25
5 1.275 1.3 1.213 1.2
2 1.25 1.25
5 1.287
TJ = 25°C TJ = MIN to MAX
V 1.3
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
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