LM2941

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具有使能功能的 1A、26V、高 PSRR、可調節低壓降穩壓器，-40°C°C 至 +125°C 工作溫度范圍

產品詳情

Rating Catalog Vin (max) (V) 26 Vin (min) (V) 6 Iout (max) (A) 1 Output options Adjustable Output, Fixed Output Vout (max) (V) 20 Vout (min) (V) 5 Fixed output options (V) 20 Noise (μVrms) 600 PSRR at 100 KHz (dB) 67 Iq (typ) (mA) 10 Features Enable Thermal resistance θJA (°C/W) 32, 40.6, 41 Load capacitance (min) (μF) 22 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) -40 to 125
Rating Catalog Vin (max) (V) 26 Vin (min) (V) 6 Iout (max) (A) 1 Output options Adjustable Output, Fixed Output Vout (max) (V) 20 Vout (min) (V) 5 Fixed output options (V) 20 Noise (μVrms) 600 PSRR at 100 KHz (dB) 67 Iq (typ) (mA) 10 Features Enable Thermal resistance θJA (°C/W) 32, 40.6, 41 Load capacitance (min) (μF) 22 Regulated outputs (#) 1 Accuracy (%) 5 Dropout voltage (Vdo) (typ) (mV) 500 Operating temperature range (°C) -40 to 125
TO-220 (KC) 5 45.212 mm2 10.16 x 4.45 TO-220 (NDH) 5 86.0552 mm2 10.16 x 8.47 TO-263 (KTT) 5 154.8384 mm2 10.16 x 15.24 WSON (NGN) 8 16 mm2 4 x 4
  • Operating VIN Range: 6 V to 26 V
  • Output Voltage Adjustable From 5 V to 20 V
  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Output Current in Excess of 1 A
  • Trimmed Reference Voltage
  • Reverse Battery Protection
  • Internal Short-Circuit Current Limit
  • Mirror Image Insertion Protection
  • P+ Product Enhancement Tested
  • TTL, CMOS Compatible ON/OFF Switch
  • WSON Space-Saving Package
  • Operating VIN Range: 6 V to 26 V
  • Output Voltage Adjustable From 5 V to 20 V
  • Dropout Voltage Typically 0.5 V at IOUT = 1 A
  • Output Current in Excess of 1 A
  • Trimmed Reference Voltage
  • Reverse Battery Protection
  • Internal Short-Circuit Current Limit
  • Mirror Image Insertion Protection
  • P+ Product Enhancement Tested
  • TTL, CMOS Compatible ON/OFF Switch
  • WSON Space-Saving Package

The LM2941 positive voltage regulator features the ability to source 1 A of output current with a typical dropout voltage of 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 pin 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 LM2941 and all regulated circuitry are protected from reverse battery installations or two-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. Familiar regulator features such as short circuit and thermal overload protection are also provided.

The LM2941 positive voltage regulator features the ability to source 1 A of output current with a typical dropout voltage of 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 pin 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 LM2941 and all regulated circuitry are protected from reverse battery installations or two-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. Familiar regulator features such as short circuit and thermal overload protection are also provided.
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類型 標題 下載最新的英語版本 日期
* 數據表 LM2941x 1-A Low Dropout Adjustable Regulator 數據表 (Rev. I) PDF | HTML 2015年 1月 12日
更多文獻資料 Die D/S LM2941 MDE 1A Low Dropout Adjustable Regulator 2012年 12月 20日

設計和開發

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仿真模型

LM2941 PSpice Transient Model (Rev. A)

SNVM602A.ZIP (57 KB) - PSpice Model
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仿真模型

LM2941 TINA-TI Transient Model

SNVM700.TSC (98 KB) - TINA-TI Spice Model
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仿真模型

LM2941 TINA-TI Transient Reference Design

SNVM699.ZIP (10 KB) - TINA-TI Reference Design
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仿真模型

LM2941 Unencrypted PSpice Transient Model

SNVMAB1.ZIP (2 KB) - PSpice Model
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封裝 引腳 CAD 符號、封裝和 3D 模型
TO-220 (KC) 5 Ultra Librarian
TO-220 (NDH) 5 Ultra Librarian
TO-263 (KTT) 5 Ultra Librarian
WSON (NGN) 8 Ultra Librarian

訂購和質量

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  • 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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