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LM2940C

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1A、26V、高 PSRR、低壓降穩(wěn)壓器

產(chǎn)品詳情

Rating Catalog Vin (max) (V) 26 Vin (min) (V) 6 Iout (max) (A) 1 Output options Fixed Output Vout (max) (V) 15 Vout (min) (V) 5 Fixed output options (V) 5, 9, 12, 15 Noise (μVrms) 150 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 23, 41 Load capacitance (min) (μF) 22 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) 0 to 125
Rating Catalog Vin (max) (V) 26 Vin (min) (V) 6 Iout (max) (A) 1 Output options Fixed Output Vout (max) (V) 15 Vout (min) (V) 5 Fixed output options (V) 5, 9, 12, 15 Noise (μVrms) 150 PSRR at 100 KHz (dB) 54 Iq (typ) (mA) 10 Thermal resistance θJA (°C/W) 23, 41 Load capacitance (min) (μF) 22 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) 0 to 125
TO-220 (NDE) 3 46.5328 mm2 10.16 x 4.58 TO-220 (NDG) 3 193.548 mm2 10.16 x 19.05 TO-263 (KTT) 3 154.8384 mm2 10.16 x 15.24
  • Input Voltage Range = 6 V to 26 V
  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Output Current in Excess of 1 A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection
  • P+ Product Enhancement Tested
  • Input Voltage Range = 6 V to 26 V
  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Output Current in Excess of 1 A
  • Output Voltage Trimmed Before Assembly
  • Reverse Battery Protection
  • Internal Short Circuit Current Limit
  • Mirror Image Insertion Protection
  • P+ Product Enhancement Tested

The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V 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 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3 V).

Designed also for vehicular applications, the LM2940-N and LM2940C 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-N and LM2940C cannot be harmed by temporary mirror-image insertion. Familiar regulator features such as short circuit and thermal overload protection are also provided.

The LM2940-N and LM2940C positive voltage regulators feature the ability to source 1 A of output current with a dropout voltage of typically 0.5 V and a maximum of 1 V 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 3 V. The quiescent current with 1 A of output current and an input-output differential of 5 V is therefore only 30 mA. Higher quiescent currents only exist when the regulator is in the dropout mode (VIN − VOUT ≤ 3 V).

Designed also for vehicular applications, the LM2940-N and LM2940C 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-N and LM2940C 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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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 LM2940x 1-A Low Dropout Regulator 數(shù)據(jù)表 (Rev. J) PDF | HTML 2014年 12月 22日

設(shè)計和開發(fā)

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參考設(shè)計

TIDA-01414 — TPA3244 Dolby Atmos 條形音箱參考設(shè)計

TPA3244 Dolby Atmos? 條形音箱參考設(shè)計結(jié)合了超高清音頻和高動態(tài)范圍，可通過外形小巧的系統(tǒng)打造充滿整個房間的音頻體驗(yàn)。該設(shè)計利用 TI 的高性能 TPA3244 放大器、帶處理功能的 PCM5252 高性能 DAC 以及用于解碼和渲染 Dolby Atmos? 的集成 SoC。條形音箱參考板使用 TI 用于獨(dú)立通道處理的集成音頻 DSP 來提供 10DAC +放大器通道，該 DSP 包含數(shù)字有源分頻器、DRC 和雙二階濾波器以支持 5.1.2 條形音箱輸出配置。該設(shè)計使用 66AK2G 音頻 SoC 進(jìn)行 Dolby Atmos? 解碼和渲染。
設(shè)計指南: PDF
原理圖: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
TO-220 (NDE) 3 Ultra Librarian
TO-220 (NDG) 3 Ultra Librarian
TO-263 (KTT) 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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