LM337

Manufacturer Part NumberLM337
DescriptionLM337THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATORS
ManufacturerSTMicroelectronics
LM337 datasheet
 


Specifications of LM337

Ripple Rejection77 dBExcellent Thermal Regulation0.002%/V
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.
OUTPUT VOLTAGE ADJUSTABLE DOWN TO
.
V
.
ref
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
.
0.002%/V
50ppm/ C TEMPERATURE COEFFICIENT
DESCRIPTION
The LM137 series are adjustable 3-terminal nega-
tive voltage regulators capable of supplying in ex-
cess - 1.5A over a -1.2 to - 37V output voltage range.
They are exceptionally easy to use and require only
two external resistors to set the output voltage. Fur-
ther, 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 re-
mains fully functional even if the adjustment terminal
is disconnected.
PIN CONNECTIONS
TO-3
(bottom view)
1 - Output
2 - Adj
Case is input
March 1993
THREE-TERMINAL ADJUSTABLE
NEGATIVE VOLTAGE REGULATORS
REGULATION:
TO-39
(bottom view)
1 - Adj
2 - Output
3 - input
Heatsink surface connected to input
LM137/LM237
LM337
TO-3
TO-220
TO-39
TO-220
(front view)
1 - Adj
2 - Output
3 - Input
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LM337 Summary of contents