LM317HV (正在供货)

3 引脚高电压、高电流可调节稳压器

 

备选器件推荐

  • LM117HV  -  Wider Temperature Range, Military Grade
  • LM317-N  -  Low Voltage Version
  • LM46001  -  Switching Option

Other devices and data sheet

Other device variants can also be found in the  LM317HV-MIL product page

描述

The LMx17HV is an adjustable 3-terminal positive voltage regulator capable of supplying 1.5 A or more currents over a 1.25-V to 57-V output voltage range. It requires only two external resistors to set the output voltage. The LMx17HV is packaged in standard transistor packages that are easily mounted and handled.

The LMx17HV offers overload protection like current limit, thermal overload protection and safe area protection, which make the device blowout proof. The overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Typically, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. 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.

Since the regulator is floating and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, or in other words, do not short the output to ground.

By connecting a fixed resistor between the adjustment and output, the LMx17HV can also 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 1.25 V where most loads draw little current.

特性

  • Up to 60 V Input to Output Differential
  • 1.5-A Output Current
  • Line Regulation 0.01%/V (Typical)
  • Load Regulation 0.1% (Typical)
  • 80-dB Ripple Rejection (Typical)
  • Internal Short-Circuit Current Limiting Protection
  • Thermal Overload Protection
  • –55 to 150°C Operating Temperature Range
    (LM117HV)
  • 0 to 125°C Operating Temperature Range
    (LM317HV)

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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)
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
LM317HV LM117 LM117HV LM317-N LM317A LM317L-N
1.5    1.5    1.5    1.5    1.5    0.1   
Adjustable Output    Adjustable Output    Adjustable Output    Adjustable Output    Adjustable Output    Adjustable Output   
4.2    4.2    4.2    4.2    4.2    4.2   
60    40    60    40    40    40   
1.25    1.25    1.25    1.2    1.2    1.2   
57    37    57    37    37    38   
0.05    5    0.05    3.5    0.05    0.05   
2250    1200    1500    2250    2250    1800   
5    4    2    5    5    3   
1710    75    1710    35    38    38   
40    40    40    40    40    63   
N/A    Non-Ceramic    N/A    Non-Ceramic    Non-Ceramic    N/A   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
0 to 125    -55 to 125
-55 to 150   
-55 to 125    0 to 125    -40 to 125    -40 to 125   
3TO-220    2TO-3
3TO   
3TO    3DDPAK/TO-263
3TO-220
3TO-252
4SOT-223   
3TO
3TO-220
3TO-252
4SOT-223   
3TO-92
6DSBGA
8SOIC