- down to 1.2V adjustable output
- Guaranteed 100mA output current
- The line gauge is generally 0.01%V
- Load adjustment rate is generally 0.1%
- Constant current limit with temperature
- Eliminates a lot of stock voltage
- Standard 3-pin transistor package
- 80 dB ripple suppression
- In TO-92, SO-8 or available in 6-bump micro SMD packages
- Output short-circuit protection
- See MicroSMD for Consideration AN-1112
illustrate
The LM317L is an adjustable three-terminal regulator on the front that provides an output range of 1.2V to 37V with a hundredmampere capability. It is very easy to use and only requires two external resistors to set the output voltage. In addition, both line and load regulation are better than standard fixed voltage regulators. In addition, the LM317L is available in a standard available TO-92 transistor package for ease of use.
In addition to its higher performance than fixed regulators, the LM317L offers complete overload protection. Includes current limiting on the chip, overheating protection, and protection of the safe zone. All overload protection circuits remain fully functional, even if the adjustment terminal is disconnected.
Typically, this is not necessary unless the capacitor device is more than 6 inches away from the input bypass input filter capacitor in this case. Optional output capacitors can be added to improve transient response. Adjustment terminals can be bypassed to achieve very high ripple rejection ratios that are difficult to achieve with standard three-terminal regulators.
In addition to replacing fixed regulators, the LM317L is useful in various other applications. Since regulators are "floating" and believe that only input-to-output differential voltages, a power supply of a few hundred volts can be up to the maximum input-to-output differential for long-term regulation.
In addition, it enables a particularly simple adjustable switching regulator, a programmable output regulator, or a fixed resistor between connecting the adjustment and the output, and the LM317L can be used as a precision current regulator. Turning off the electronics can achieve clamping adjustment of the terminal ground which programs to the 1.2V output, which is the most attractive for small current loads.
The LM317L is available in a standard TO-92 transistor package, SO-8 package, and 6-bump micro SMD package. The LM317L is rated for operation in the -40°C to 125°C range.
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