LM337-N

AKTIV

Einstellbarer negativer linearer Spannungsregler, 1,5 A

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Datenblatt

document-pdfAcrobat LM137, LM337-N 3-Terminal Adjustable Negative Regulators datasheet (Rev. E) (Englisch) PDF | HTML

LM337-N

AKTIV

Datenblatt

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Produktdetails

Rating

Catalog

Vin (max) (V)

-4.2

Vin (min) (V)

-40

Iout (max) (A)

1.5

Output options

Adjustable Output, Negative Output

Vout (max) (V)

-1.2

Vout (min) (V)

-37

Noise (µVrms)

38

PSRR at 100 KHz (dB)

35

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

23

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Accuracy (%)

2.4

Dropout voltage (Vdo) (typ) (mV)

2400

Operating temperature range (°C)

-40 to 125

Rating

Catalog

Vin (max) (V)

-4.2

Vin (min) (V)

-40

Iout (max) (A)

1.5

Output options

Adjustable Output, Negative Output

Vout (max) (V)

-1.2

Vout (min) (V)

-37

Noise (µVrms)

38

PSRR at 100 KHz (dB)

35

Iq (typ) (mA)

0.065

Thermal resistance θJA (°C/W)

23

Load capacitance (min) (µF)

1

Regulated outputs (#)

1

Accuracy (%)

2.4

Dropout voltage (Vdo) (typ) (mV)

2400

Operating temperature range (°C)

-40 to 125

SOT-223 (DCY)

4

45.5 mm² 6.5 x 7

TO-220 (NDE)

3

46.5328 mm² 10.16 x 4.58

TO-220 (NDG)

3

193.548 mm² 10.16 x 19.05

1.5-A Output Current
Line Regulation 0.01%/V (Typical)
Load Regulation 0.3% (Typical)
77-dB Ripple Rejection
50 ppm/°C Temperature Coefficient
Thermal Overload Protection
Internal Short-Circuit Current Limiting
Protections

1.5-A Output Current
Line Regulation 0.01%/V (Typical)
Load Regulation 0.3% (Typical)
77-dB Ripple Rejection
50 ppm/°C Temperature Coefficient
Thermal Overload Protection
Internal Short-Circuit Current Limiting
Protections

The LM137 and LM337-N are adjustable 3-terminal negative voltage regulators capable of supplying –1.5 A or more currents over an output voltage range of –1.25 V to –37 V. It requires only two external resistors to set the output voltage and one output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 and LM337-N feature internal current limiting, thermal shutdown and safe-area compensation, making it virtually blowout-proof against overloads.

The LM137 and LM337-N are ideal complements to the LM117 and LM317 adjustable positive regulators. The LM137 has a wider operating temperature range than the LM337-N and is also offered in military and space qualified versions.

The LM137 and LM337-N are adjustable 3-terminal negative voltage regulators capable of supplying –1.5 A or more currents over an output voltage range of –1.25 V to –37 V. It requires only two external resistors to set the output voltage and one output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 and LM337-N feature internal current limiting, thermal shutdown and safe-area compensation, making it virtually blowout-proof against overloads.

The LM137 and LM337-N are ideal complements to the LM117 and LM317 adjustable positive regulators. The LM137 has a wider operating temperature range than the LM337-N and is also offered in military and space qualified versions.

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Technische Dokumentation

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Alle anzeigen 4

	Typ	Titel		Datum
*	Data sheet	LM137, LM337-N 3-Terminal Adjustable Negative Regulators datasheet (Rev. E)	PDF \| HTML	13 Jan 2016
	Application note	Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A)		05 Mai 2013
	Application note	LB-46 A New Production Technique for Trimming Voltage Regulators		15 Mai 2004
	Application note	A New Production Technique for Trimming Voltage Regulators		03 Okt 2002

Design und Entwicklung

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Evaluierungsplatine

LM317A-337N-EVM — 3-poliges einstellbares Regler-Evaluierungsmodul

LM317A-337N-EVM demonstriert die vorschriftsmäßige Anwendung des einstellbaren Reglers LM317A und dessen negativem Komplement LM337-N. Das Evaluierungsmodul (EVM) ist mit der SOT-223-Gehäuseoption beider Bausteine ausgestattet und liefert bis zu 1 A Laststrom. Das EVM ist für die einfache (...)

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