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LM3411

現行

精密二次穩壓器和驅動器

立即訂購
產品規格表

LM3411

現行
產品規格表 立即訂購

產品詳細資料

VO (V) 3.3, 5 Initial accuracy (max) (%) 0.5, 1, 11 VO adj (min) (V) 3.3 VO adj (max) (V) 5 Iz for regulation (min) (µA) 85 Reference voltage (V) Fixed Rating Catalog Temp coeff (max) (ppm/°C) 61 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 15
VO (V) 3.3, 5 Initial accuracy (max) (%) 0.5, 1, 11 VO adj (min) (V) 3.3 VO adj (max) (V) 5 Iz for regulation (min) (µA) 85 Reference voltage (V) Fixed Rating Catalog Temp coeff (max) (ppm/°C) 61 Operating temperature range (°C) -40 to 85 Iout/Iz (max) (mA) 15
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Fixed Voltages of 3.3 V and 5 V With Initial
    Tolerance of ±1% for Standard Grade and ±0.5%
    for A Grade
  • Custom Voltages Available (3 V to 17 V)
  • Wide Output Current Range (20 µA to 15 mA)
  • Low Temperature Coefficient
  • Available in 5-Pin SOT-23 Surface-Mount
    Package (Tape and Reel)
  • Fixed Voltages of 3.3 V and 5 V With Initial
    Tolerance of ±1% for Standard Grade and ±0.5%
    for A Grade
  • Custom Voltages Available (3 V to 17 V)
  • Wide Output Current Range (20 µA to 15 mA)
  • Low Temperature Coefficient
  • Available in 5-Pin SOT-23 Surface-Mount
    Package (Tape and Reel)

The LM3411 is a low-power fixed-voltage (3.3 V or 5 V) precision shunt regulator designed specifically for driving an optoisolator to provide feedback isolation in a switching regulator.

The LM3411 circuitry includes an internally compensated operational amplifier, a bandgap reference, NPN output transistor, and voltage setting resistors.

A trimmed precision bandgap reference with temperature drift curvature correction provides a ensured 1% precision over the operating temperature range (A grade version). The inverting input of the amplifier is externally accessible for loop frequency compensation when used as part of a larger servo system. The output is an open-emitter NPN transistor capable of driving up to 15 mA of load current.

Because of its small die size, the LM3411 has been made available in the subminiature 5-pin SOT-23 surface-mount package. This package is ideal for use in space-critical applications.

Although its main application is to provide a precision output voltage (no trimming required) and maintain very good regulation in isolated DC-DC converters, it can also be used with other types of voltage regulators or power semiconductors to provide a precision output voltage without precision resistors or trimming.

The LM3411 is a low-power fixed-voltage (3.3 V or 5 V) precision shunt regulator designed specifically for driving an optoisolator to provide feedback isolation in a switching regulator.

The LM3411 circuitry includes an internally compensated operational amplifier, a bandgap reference, NPN output transistor, and voltage setting resistors.

A trimmed precision bandgap reference with temperature drift curvature correction provides a ensured 1% precision over the operating temperature range (A grade version). The inverting input of the amplifier is externally accessible for loop frequency compensation when used as part of a larger servo system. The output is an open-emitter NPN transistor capable of driving up to 15 mA of load current.

Because of its small die size, the LM3411 has been made available in the subminiature 5-pin SOT-23 surface-mount package. This package is ideal for use in space-critical applications.

Although its main application is to provide a precision output voltage (no trimming required) and maintain very good regulation in isolated DC-DC converters, it can also be used with other types of voltage regulators or power semiconductors to provide a precision output voltage without precision resistors or trimming.
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類型 標題 日期
* Data sheet LM3411 Precision Secondary Regulator and Driver datasheet (Rev. F) PDF | HTML 2016年 5月 27日
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 2019年 6月 28日
EVM User's guide AN-1305 LM5030 Evaluation Board (Rev. A) 2013年 5月 6日
Application note AN-1095 Design of Isolated Converters Using Simple Switchers (Rev. B) 2013年 4月 23日
White paper Versatility of the LM5030 PWM Push-Pull Controller 2003年 12月 1日

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