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LM137K Datasheet

  • LM137K

  • STMicroelectronics [NEGATIVE VOLTAGE REGULATORS THREE-TERMI...

  • 247.01KB

  • STMICROELECTRONICS   STMICROELECTRONICS

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LM137/LM237
LM337
THREE-TERMINAL ADJUSTABLE
NEGATIVE VOLTAGE REGULATORS
.
.
.
.
.
.
.
.
.
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
REGULATION:
0.002%/V
50ppm/掳C TEMPERATURE COEFFICIENT
TO-3
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)
TO-39
(bottom view)
TO-220
TO-39
TO-220
(front view)
1 - Adj
2 - Output
3 - Input
1 - Output
2 - Adj
Case is input
1 - Adj
2 - Output
3 - input
Heatsink surface connected to input
March 1993
1/14

LM137K 产品属性

  • LM137 View All Specifications

  • 100

  • 集成电路 (IC)

  • PMIC - 稳压器 - 线性

  • -

  • 负，可调式

  • -1.2 V ~ -37 V

  • -

  • -

  • 1

  • -

  • -

  • -55°C ~ 150°C

  • 通孔

  • TO-204AA，TO-3

  • TO-3

  • 散装

  • 497-6436LM137K-ND

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