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线性和低压降 (LDO) 稳压器

LM2940QML

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军用级 1A 5V 可调节输出线性稳压器/LDO

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数据表

LM2940QML

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产品详情

Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 26 Vin (min) (V) 6 Vout (max) (V) 5 Vout (min) (V) 5 Fixed output options (V) 5 Rating Military Noise (µVrms) 150 PSRR at 100 KHz (dB) 50 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 136 Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) -55 to 125
Output options Fixed Output Iout (max) (A) 1 Vin (max) (V) 26 Vin (min) (V) 6 Vout (max) (V) 5 Vout (min) (V) 5 Fixed output options (V) 5 Rating Military Noise (µVrms) 150 PSRR at 100 KHz (dB) 50 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 136 Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) -55 to 125
CFP (NAC) 16 62.9285 mm² 9.91 x 6.35 WAFERSALE (YS) — See data sheet
  • Available with Radiation Ensure
    • ELDRS Free 100 krad(Si)
  • Dropout Voltage Typically 0.5V @IO = 1A
  • Output Current in Excess of 1A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection

All trademarks are the property of their respective owners.

  • Available with Radiation Ensure
    • ELDRS Free 100 krad(Si)
  • Dropout Voltage Typically 0.5V @IO = 1A
  • Output Current in Excess of 1A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection

All trademarks are the property of their respective owners.

The LM2940 positive voltage regulator features the ability to source 1A of output current with a dropout voltage of typically 0.5V and a maximum of 1V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3V. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3V).

Designed also for vehicular applications, the LM2940 and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

The LM2940 positive voltage regulator features the ability to source 1A of output current with a dropout voltage of typically 0.5V and a maximum of 1V over the entire temperature range. Furthermore, a quiescent current reduction circuit has been included which reduces the ground current when the differential between the input voltage and the output voltage exceeds approximately 3V. The quiescent current with 1A of output current and an input-output differential of 5V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3V).

Designed also for vehicular applications, the LM2940 and all regulated circuitry are protected from reverse battery installations or 2-battery jumps. During line transients, such as load dump when the input voltage can momentarily exceed the specified maximum operating voltage, the regulator will automatically shut down to protect both the internal circuits and the load. The LM2940 cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LM2940QML 1A Low Dropout Regulator 数据表 (Rev. B) 2013年 5月 2日
* SMD LM2940QML SMD 5962-89587 2016年 6月 21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-1148 Linear Regulators: Theory of Operation and Compensation (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
更多文献资料 Die D/S LM2940-5.0 MDE 1A Low Dropout Adj Regulator 2012年 9月 20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
应用手册 Understanding the Terms and Definitions of LDO Voltage Regulators 1999年 10月 21日

设计和开发

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封装 引脚 CAD 符号、封装和 3D 模型
CFP (NAC) 16 Ultra Librarian
WAFERSALE (YS) —
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

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：
  • 制造厂地点
  • 封装厂地点

支持和培训

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