LM317-N-MIL

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1.5A 可调输出线性稳压器

产品详情

Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 4.2 Vout (max) (V) 37 Vout (min) (V) 1.2 Noise (µVrms) 35 Iq (typ) (mA) 3.5 Thermal resistance θJA (°C/W) 39 Rating Military Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 5 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 2250 Operating temperature range (°C) 0 to 0
Output options Adjustable Output Iout (max) (A) 1.5 Vin (max) (V) 40 Vin (min) (V) 4.2 Vout (max) (V) 37 Vout (min) (V) 1.2 Noise (µVrms) 35 Iq (typ) (mA) 3.5 Thermal resistance θJA (°C/W) 39 Rating Military Load capacitance (min) (µF) 0 Regulated outputs (#) 1 Accuracy (%) 5 PSRR at 100 KHz (dB) 40 Dropout voltage (Vdo) (typ) (mV) 2250 Operating temperature range (°C) 0 to 0
TO-CAN (NDS) 2 969.2166 mm² 38.94 x 24.89
  • Typ. 0.1% Load Regulation
  • Typ. 0.01%/V Line Regulation
  • 1.5-A Output Current
  • Adjustable Output Down to 1.25 V
  • Current Limit Constant With Temperature
  • 80-dB Ripple Rejection
  • Short-Circuit Protected Output
  • Typ. 0.1% Load Regulation
  • Typ. 0.01%/V Line Regulation
  • 1.5-A Output Current
  • Adjustable Output Down to 1.25 V
  • Current Limit Constant With Temperature
  • 80-dB Ripple Rejection
  • Short-Circuit Protected Output

The LM317-N-MIL adjustable 3-pin positive voltage regulator is capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature range. The LM317-N-MIL is easy to use and requires only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators.

The LM317-N-MIL offers full overload protection, such as current limit, thermal overload protection, and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios that are difficult to achieve with standard 3-terminal regulators.

Because the regulator is floating and detects only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded. That is, avoid short-circuiting the output.

By connecting a fixed resistor between the adjustment pin and output, the LM317-N-MIL can be also used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground, which programs the output to 1.25 V where most loads draw little current.

For applications requiring greater output current, see data sheets for LM150 series (3 A), SNVS772, and LM138 series (5 A), SNVS771. For the negative complement, see LM137 (SNVS778) series data sheet.

The LM317-N-MIL adjustable 3-pin positive voltage regulator is capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature range. The LM317-N-MIL is easy to use and requires only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators.

The LM317-N-MIL offers full overload protection, such as current limit, thermal overload protection, and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios that are difficult to achieve with standard 3-terminal regulators.

Because the regulator is floating and detects only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input-to-output differential is not exceeded. That is, avoid short-circuiting the output.

By connecting a fixed resistor between the adjustment pin and output, the LM317-N-MIL can be also used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground, which programs the output to 1.25 V where most loads draw little current.

For applications requiring greater output current, see data sheets for LM150 series (3 A), SNVS772, and LM138 series (5 A), SNVS771. For the negative complement, see LM137 (SNVS778) series data sheet.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM317-N-MIL Wide Temperature Three-Pin Adjustable Regulator 数据表 PDF | HTML 2017年 6月 22日
应用手册 A Topical Index of TI LDO Application Notes (Rev. F) 2019年 6月 27日
应用手册 AN-1028 Maximum Power Enhancement Techniques for Power Packages (Rev. B) 2013年 5月 6日
应用手册 AN-103 LM340 Series Three Terminal Positive Regulators (Rev. A) 2013年 5月 6日
应用手册 AN-1148 Linear Regulators: Theory of Operation and Compensation (Rev. B) 2013年 5月 6日
用户指南 AN-1164 LM3647 Reference Design User's Manual (Rev. B) 2013年 5月 6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 Packaging Limits Range of Linear Regulators 2010年 5月 8日
应用手册 Digital Designer's Guide to Linear Voltage Regulators & Thermal Mgmt (LDO) (Rev. A) 2008年 6月 4日
用户指南 A User's Guide to Compensating Low-Dropout Regulators 2007年 3月 21日
应用手册 Linear and Switching Voltage Regulator Fundamental Part 1 2007年 3月 21日
应用手册 Method For Cal Output Voltage Tolerances in Adj Regs (cn) 最新英语版本 (Rev.A) 2005年 7月 14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 App Note 1148 Linear Regulators: Theory of Op & Comp 2004年 5月 10日
应用手册 A New Production Technique for Trimming Voltage Regulators 2002年 10月 3日
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应用手册 High Voltage Adjustable Power Supplies 2002年 10月 3日
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设计和开发

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仿真模型

LM317-N PSpice Transient Model

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仿真模型

LM317-N Unencrypted PSpice Transient Model

SNVMAP2.ZIP (2 KB) - PSpice Model
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包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
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  • 封装厂地点

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