100mA 小型宽输入可调节稳压器 - LM317L-N

LM317L-N (正在供货)

100mA 小型宽输入可调节稳压器

 

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描述

The LM317L-N is an adjustable 3-terminal positive voltage regulator capable of supplying 100 mA over a 1.2-V to 37-V output range. The LM317L-N is easy to use and requires only two external resistors to set the output voltage. Both line and load regulation are better than standard fixed regulators. The LM317L-N is available packaged in a standard, easy-to-use TO-92 transistor package.

In addition to higher performance than fixed regulators, the LM317L-N offers full overload protection. Included on the chip are current limit, thermal overload protection, and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are required unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is required. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios, which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM317L-N is useful in a wide variety of other applications. Because the regulator is floating and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated, provided the maximum input-to-output differential is not exceeded.

The LM317L-N makes a simple adjustable switching regulator, a programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the LM317L-N can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2 V, where most loads draw little current.

The LM317L-N is available in a standard 3-pin TO-92 transistor package, the 8-pin SOIC package, and 6-pin DSBGA package. The LM317L-N is rated for operation over a −40°C to 125°C range.

特性

  • Adjustable Output Down to 1.2 V
  • 100-mA Output Current
  • Line Regulation Typically 0.01% V
  • Load Regulation Typically 0.1%
  • Current Limit Constant With Temperature
  • Eliminates the Need to Stock Many Voltages
  • Standard 3-Lead Transistor Package
  • 80-dB Ripple Rejection
  • Available in 3-Pin TO-92, 8-Pin SOIC, or 6-pin
    DSBGA Packages
  • Output is Short-Circuit Protected
  • See AN-1112 (SNVA009) for DSBGA
    Considerations

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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
LM317L-N LM117 LM140L LM317-N LM317A LM317HV LM330-N LM340L LM723
0.1    1.5    0.1    1.5    1.5    1.5    0.15    0.1    0.15   
Adjustable Output    Adjustable Output    Fixed Output    Adjustable Output    Adjustable Output    Adjustable Output    Fixed Output    Fixed Output    Adjustable Output   
4.2    4.2    17.6    4.2    4.2    4.2    6    7    9.5   
40    40    35    40    40    60    26    35    40   
    5
12
15   
      5    5
12
15   
 
1.2    1.25    5    1.2    1.2    1.25    5    5    2   
38    37    15    37    37    57    5    15    37   
0.05    5    4.5    3.5    0.05    0.05    3.5    3    1.7   
1800    1200    1500    2250    2250    2250    320    2000    3000   
3    4    4    5    5    5    1.4    2.5    3   
38    75    40    35    38    1710    50    40    86   
63    40    40    40    40    40    38    43     
N/A    Non-Ceramic    Non-Ceramic    Non-Ceramic    Non-Ceramic    N/A    Non-Ceramic    Non-Ceramic    N/A   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -55 to 125
-55 to 150   
-55 to 125    0 to 125    -40 to 125    0 to 125    0 to 70    0 to 70    -55 to 150   
3TO-92
6DSBGA
8SOIC   
2TO-3
3TO   
3TO    3DDPAK/TO-263
3TO-220
3TO-252
4SOT-223   
3TO
3TO-220
3TO-252
4SOT-223   
3TO-220    3TO-220    3TO-92    10TO-100