单路输出 LDO、100mA、可调节电压、宽输入电压范围、复位标志 - LP2951

LP2951 (正在供货)

单路输出 LDO、100mA、可调节电压、宽输入电压范围、复位标志

 

备选器件推荐

  • LP2950  - 器件与被比较器件具有相同的功能,但并不是引脚对引脚等效,也有可能参数不相同。   Has lower pin count and fixed voltage option

描述

The LP2950 and LP2951 devices are bipolar, low-dropout voltage regulators that can accommodate a wide input supply-voltage range of up to 30 V. The easy-to-use, 3-pin LP2950 is available in fixed-output voltages of 5 V, 3.3 V, and 3 V. However, the 8-pin LP2951 is able to output either a fixed or adjustable output from the same device. By tying the OUTPUT and SENSE pins together, and the FEEDBACK and VTAP pins together, the LP2951 outputs a fixed 5 V, 3.3 V, or 3 V (depending on the version). Alternatively, by leaving the SENSE and VTAP pins open and connecting FEEDBACK to an external resistor divider, the output can be set to any value between 1.235 V to 30 V.

特性

  • Wide Input Range: Up to 30 V
  • Rated Output Current of 100 mA
  • Low Dropout: 380 mV (Typ) at 100 mA
  • Low Quiescent Current: 75 µA (Typ)
  • Tight Line Regulation: 0.03% (Typ)
  • Tight Load Regulation: 0.04% (Typ)
  • High VO Accuracy
    • 1.4% at 25°C
    • 2% Over Temperature
  • Can Be Used as a Regulator or Reference
  • Stable With Low ESR (>12 mΩ) Capacitors
  • Current- and Thermal-Limiting Features
  • LP2950 Only (3-Pin)
    • Fixed-Output Voltages of 5 V, 3.3 V, and 3 V
  • LP2951 Only (8-Pin Package)
    • Fixed- or Adjustable-Output Voltages:
      5 V/ADJ, 3.3 V/ADJ, and 3 V/ADJ
    • Low-Voltage Error Signal on Falling Output
    • Shutdown Capability
    • Remote Sense Capability for Optimal Output
      Regulation and Accuracy

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参数 与其它产品相比 单通道 LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Fixed Output Options (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Rating
Operating Temperature Range (C)
Pin/Package
LP2951 LP2951-50
0.1    0.1   
Adjustable Output
Fixed Output   
Fixed Output   
2    5.4   
30    30   
3
3.3
5   
5   
1.2    5   
29    5   
0.075    0.075   
380    380   
3    2.5   
160    160   
57    42   
Non-Ceramic    Non-Ceramic   
Catalog    Catalog   
-40 to 125    -40 to 125   
8SOIC
8SON   
8PDIP   

其它合格版本 LP2951

版本 器件型号 定义
汽车电子 LP2951-Q1 Q100 适用于追求零缺陷的高可靠性汽车电子应用的器件
New! Interactive Design
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WEBENCH® Designer LP2951

  最小   最大 范围
输入电压  V 2.3 to 30.0V
输出电压  V 1.23 to 29.0V
输出电流  A ≤ 0.1A
环境温度  °C -40 to 125°C


覆盖面积 BOM成本 效率


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