LM137/LM237 pdf datasheet .OUTPUT VOLTAGE ADJUSTABLE DOWN TO
.Vref .1.5A GUARANTEED OUTPUT CURRENT .0.3%/V TYPICAL LOAD REGULATION .0.01%/V TYPICAL LINE REGULATION CURRENT LIMIT CONSTANT WITH TEM.
PERATURE .RIPPLE REJECTION : 77dB STANDARD 3-LEAD TRANSISTOR PACK.
AGES EXCELLENT THERMAL REGULATION:
.0.002%/V 50ppm/°C TEMPERATURE COEFFICIENT
DESCRIPTION
The LM137 series are adjustable 3-terminal negative
voltage regulators capable of supplying in excess-
1.5Aover a -1.2 to -37Voutput voltage range.
They are exceptionally easy to use and require only
two external resistors to set the output voltage. Further,
both line and load regulation are better than
standard fixed regulators. Also, LM137 regulators
are supplied in standard transistor packages which
are easily mounted and handled. In addition to
higher performance than fixed regulators, the
LM137 series offer full overload protection available
only in integrated circuits. Included on the chip are
current limit, thermal overload protection and safe
area protection. All overload protection circuitry remains
fully functional even ifthe adjustment terminal
is disconnected.