LM337-N

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1.5A 负电压可调节线性稳压器

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数据表

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

LM337-N

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数据表

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产品详情

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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	类型	标题		日期
*	数据表	LM137, LM337-N 3-Terminal Adjustable Negative Regulators 数据表 (Rev. E)	PDF \| HTML	2016年 1月 13日
	EVM 用户指南	LM317A-337N-EVM User's Guide		2016年 1月 21日
	应用手册	Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A)		2013年 5月 5日
	应用手册	LB-46 A New Production Technique for Trimming Voltage Regulators		2004年 5月 15日
	应用手册	A New Production Technique for Trimming Voltage Regulators		2002年 10月 3日

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评估板

LM317A-337N-EVM — 3 引脚可调节稳压器评估模块

LM317A-337N-EVM 展示了 LM317A 可调稳压器及其负电压互补器件 LM337-N 的标准应用。该评估模块 (EVM) 中两款器件均采用 SOT-223 封装，负载电流最高可达 1A。此 EVM 设计便于改造，可换装 TO-220 封装版本的器件，以实现 1.5A 工作电流。该 EVM 预留了足够的占位空间供用户自主选择电容，且采用 4 层铜 PCB 设计并预留散热片空间，确保优异的散热性能。

用户指南: PDF