LM337-N

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1.5A 負電壓可調節線性穩壓器

產品詳情

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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類型 標題 下載最新的英語版本 日期
* 數據表 LM137, LM337-N 3-Terminal Adjustable Negative Regulators 數據表 (Rev. E) PDF | HTML 2016年 1月 13日
EVM 用戶指南 LM317A-337N-EVM User's Guide 2016年 1月 21日
應用手冊 Method For Cal Output Voltage Tolerances in Adj Regs (Rev. A) 2013年 5月 5日
應用手冊 LB-46 A New Production Technique for Trimming Voltage Regulators 2004年 5月 15日
應用手冊 A New Production Technique for Trimming Voltage Regulators 2002年 10月 3日

設計和開發

如需其他信息或資源,請點擊以下任一標題進入詳情頁面查看(如有)。

評估板

LM317A-337N-EVM — 3 引腳可調節穩壓器評估模塊

LM317A-337N-EVM 展示了 LM317A 可調穩壓器及其負電壓互補器件 LM337-N 的標準應用。該評估模塊 (EVM) 中兩款器件均采用 SOT-223 封裝,負載電流最高可達 1A。此 EVM 設計便于改造,可換裝 TO-220 封裝版本的器件,以實現 1.5A 工作電流。該 EVM 預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 設計并預留散熱片空間,確保優異的散熱性能。

用戶指南: PDF
TI.com 上無現貨
仿真模型

LM337-N PSpice Transient Model

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

LM337-N Unencrypted PSpice Transient Model

SNVMAP4.ZIP (1 KB) - PSpice Model
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

訂購和質量

包含信息:
  • RoHS
  • REACH
  • 器件標識
  • 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
  • 持續可靠性監測
包含信息:
  • 制造廠地點
  • 封裝廠地點

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