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LM337-N

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1.5A 負(fù)電壓可調(diào)節(jié)線性穩(wěn)壓器

產(chǎn)品詳情

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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頂層文檔 類型 標(biāo)題 格式選項 下載最新的英語版本 日期
* 數(shù)據(jù)表 LM137, LM337-N 3-Terminal Adjustable Negative Regulators 數(shù)據(jù)表 (Rev. E) PDF | HTML 2016年 1月 13日
應(yīng)用手冊 Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 2013年 5月 5日
應(yīng)用手冊 LB-46 A New Production Technique for Trimming Voltage Regulators 2004年 5月 15日
應(yīng)用手冊 A New Production Technique for Trimming Voltage Regulators 2002年 10月 3日

設(shè)計與開發(fā)

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評估板

LM317A-337N-EVM — 3 引腳可調(diào)節(jié)穩(wěn)壓器評估模塊

LM317A-337N-EVM 展示了 LM317A 可調(diào)穩(wěn)壓器及其負(fù)電壓互補(bǔ)器件 LM337-N 的標(biāo)準(zhǔn)應(yīng)用。該評估模塊 (EVM) 中兩款器件均采用 SOT-223 封裝，負(fù)載電流最高可達(dá) 1A。此 EVM 設(shè)計便于改造，可換裝 TO-220 封裝版本的器件，以實(shí)現(xiàn) 1.5A 工作電流。該 EVM 預(yù)留了足夠的占位空間供用戶自主選擇電容，且采用 4 層銅 PCB 設(shè)計并預(yù)留散熱片空間，確保優(yōu)異的散熱性能。

用戶指南: PDF
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仿真模型

LM337-N PSpice Transient Model

SNVMAP5.ZIP (49 KB) - PSpice Model
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仿真模型

LM337-N Unencrypted PSpice Transient Model

SNVMAP4.ZIP (1 KB) - PSpice Model
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封裝 引腳 CAD 符號、封裝和 3D 模型
SOT-223 (DCY) 4 Ultra Librarian
TO-220 (NDE) 3 Ultra Librarian
TO-220 (NDG) 3 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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