LM337 Selling Leads, Price trend, LM337 DataSheet download, circuit diagram from SeekIC.com

Features: ` Output Voltage Range Adjustable From1.2 V to 37 V` Output Current Capability of 1.5 A Max` Input Regulation Typically 0.01% PerInput-Voltage Change` Output Regulation Typically 0.3%` Peak Output Current Constant OverTemperature Range of Regulator` Ripple Rejection Typically 77 dB` Dire...

Product Details

Description

Features:

` 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 National
Semiconductor LM237 and LM337

Pinout

Connection Diagram

Specifications

Output Current	1500 mA
Output Min	-37 Volt
Input Min Voltage	-50 Volt
Input Max Voltage	-4.2 Volt
Adjustable Output	Yes
On/Off Pin	No
Error Flag	No
RegType	Linear Regulator
Temperature Min	-40 deg C
Temperature Max	125 deg C
Output Max	-1.2 Volt
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Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Drawing	Package Marking Convention**
LM337T	Full Production	RoHS Compliant	$0.434	TO-220	3	RAIL	T03B	Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &3 (3-Digit Date Code) &K Line 3: LM337

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product LM337 is available. Click here for more information .

Input-to-output differential voltage, VI VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 V
Package thermal impedance, qJA (see Notes 1 and 2): KC package . . . . . . . . . . . . . . . . . . . . . . . . . . . 22°C/W
KTE package . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .23°C/W
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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.
NOTES: 1. Maximum power dissipation is a function of TJ(max), qJA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) TA)/qJA. Operating at the absolute maximum TJ of 150°C can impact reliability. Due to
variations in individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be
activated at power levels slightly above or below the rated dissipation.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace
length of zero.

Description

The LM137/LM337 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of -1.5A over an output voltage range of -1.2V to -37V. These regulators are exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads.

The LM137/LM337 serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137/LM337 are ideal complements to the LM117/LM317 adjustable positive regulators.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM337IMP	SLM	0	42786	0	0	3352500	2	951281028
LM337IMPX	SLM	0	42786	0	0	3352500	2	951281028
LM337T	SLM	0	42786	0	0	3352500	2	951281028

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

More Application Notes

Title	Size in Kbytes	Date
AN-1428: Application Note 1428 LM3370 Evaluation Board	11933 Kbytes	9-Jan-08	Download
AN-1428 (Chinese): Application Note 1428 LM3370 Evaluation Board	901 Kbytes		640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">
AN-74: Application Note 74 LM139/LM239/LM339 A Quad of Independently Functioning Comparators	702 Kbytes	1-Oct-02	Download
AN-298: Application Note 298 Isolation Techniques for Signal Conditioning	379 Kbytes	2-Oct-02	Download
AN-242: Application Note 242 Applying a New Precision Op Amp	383 Kbytes	4-Oct-04	Download
AN-225: Application Note 225 IC Temperature Sensor Provides Thermocouple Cold-Junction Compensation	89 Kbytes	2-Oct-02	Download
AN-295: Application Note 295 A High Performance Industrial Weighing System	117 Kbytes	4-Oct-04	Download
AN-272: Application Note 272 Op Amp Booster Designs	382 Kbytes	2-Oct-02	Download
AN-286: Application Note 286 Applications of the LM392 Comparator Op Amp IC	135 Kbytes	2-Oct-02	Download
AN-240: Application Note 240 Wide-Range Current-to-Frequency Converters	126 Kbytes	3-Oct-02	Download
AN-C: Application Note C V/F Converter ICs Handle Frequency-to-Voltage Needs	187 Kbytes	3-Oct-02	Download
AN-D: Application Note D Versatile Monolithic V/Fs can Compute as Well as Convert with High Accuracy	248 Kbytes	3-Oct-02	Download
AN-288: Application Note 288 System-Oriented DC-DC Conversion Techniques	405 Kbytes	3-Oct-02	Download
AN-275: Application Note 275 CMOS D/A Converters Match Most Microprocessors	127 Kbytes	2-May-04	Download
AN-247: Application Note 247 Using the ADC0808/ADC0809 8-Bit µP Compatible A/D Converters with 8-Channel Analog Multiplexer	547 Kbytes	3-Oct-02	Download
AN-256: Application Note 256 Circuitry for Inexpensive Relative Humidity Measurement	119 Kbytes	2-Oct-02	Download
AN-285: Application Note 285 An Acoustic Transformer Powered Super&hyphen;High Isolation Amplifier	172 Kbytes	4-Oct-04	Download
AN-258: Application Note 258 Data Acquisition Using the ADC0816 and ADC0817 8-Bit A/D Converter with On-Chip 16 Channel Multiplexer	683 Kbytes	4-Oct-04	Download
AN-284: Application Note 284 Single-Supply Applications of CMOS MICRODACs	121 Kbytes	3-Oct-02	Download
AN-673: 2-Way Multiplexed LCD Drive and Low Cost A/D-Converter Using V/F Techniques with COP8 Microcontrollers	526 Kbytes	5-Aug-95	Download
AN-265: Application Note 265 An Electronic Watt-Watt-Hour Meter	185 Kbytes	3-Oct-02	Download
AN-274: Application Note 274 CMOS A/D Converter Interfaces Easily with Many Microprocessors	73 Kbytes	3-Oct-02	Download
AN-210: Application Note 210 New Phase-Locked-Loops Have Advantages as Frequency to Voltage Converters (and more)	339 Kbytes	3-Oct-02	Download
AN-301: Application Note 301 Signal Conditioning for Sophisticated Transducers	579 Kbytes	2-Oct-02	Download

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The LM337 is a 3-terminal negative adjustable regulator. Itsupply in excess of 1.5A over an output voltage range of -1.2V to - 37V. This regulator requires only two externalresistor to set the output voltage. Included on the chip arecurrent limiting, thermal overload protection and safe areacompensation.

LM337

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