LM337T
onsemiUnited States

LM337T

ObsoleteVoltage Regulators - LinearTO-220AB

IC REG LIN NEG ADJ 1.5A TO220-3

LM337T is an adjustable 3-terminal negative voltage regulator with output current in excess of 1.5 A, output voltage range of -1.2 V to -37 V, in TO-220AB package, featuring internal thermal shutdown and short-circuit protection.Checked against the datasheet

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Technical parameters

Key specs

Output voltage-1.2 ~ -37 V
Output current1.5 AMax
Input voltage≥ 40 V

Datasheet-verified parameters

16 items
ParameterValue and test conditionsSource
Output Voltage-1.2 V to -37 V
Output CurrentIn excess of 1.5 A
Input Voltage RangeInput-Output Voltage Differential: 40 Vdc
PackageTO-220AB (Pb-Free)
Operating TemperatureTJ = 0° to +125°C
RoHSRoHS Compliant
Reference VoltageMin: -1.213 V, Typ: -1.250 V, Max: -1.287 V (TA = +25°C, 3.0 V ≤ |VI - VO| ≤ 40 V, 10 mA ≤ IO ≤ Imax, PD ≤ Pmax, TJ = Tlow to Thigh)
Adjustment Pin CurrentTyp: 65 μA, Max: 100 μA
Line RegulationTyp: 0.01 %/V, Max: 0.04 %/V (TA = +25°C, 3.0 V ≤ |VI - VO| ≤ 40 V)
Load RegulationTyp: 15 mV, Max: 50 mV (TA = +25°C, 10 mA ≤ IO ≤ Imax, |VO| ≤ 5.0 V)
Ripple RejectionTyp: 60 dB (VO = -10 V, f = 120 Hz, Without CAdj)
Maximum Output CurrentTyp: 1.5 A, Max: 2.2 A (|VI - VO| ≤ 15 V, PD ≤ Pmax, T Package)
Minimum Load CurrentTyp: 1.5 mA, Max: 6.0 mA (|VI - VO| ≤ 10 V)
Thermal ResistanceJunction-to-Case: Typ 4.0 °C/W (T Package)
Maximum RatingsInput-Output Voltage Differential: 40 Vdc; Operating Junction Temperature Range: -40 to +125 °C; Storage Temperature Range: -65 to +150 °C
Protection FeaturesInternal Thermal Overload Protection, Internal Short Circuit Current Limiting, Output Transistor Safe-Area Compensation
All parameters (20)ExpandCollapse
Power
Current - Output1.5A
Voltage Dropout (Max)-
Voltage - Input (Max)-40V
Voltage - Output (Max)-37V
Voltage - Output (Min/Fixed)-1.2V
AC and DC characteristics
PSRR60dB (120Hz)
Environment and package
Mounting TypeThrough Hole
Operating Temperature0°C~125°C
PackageTube
Package / CaseTO-220-3
Supplier Device PackageTO-220-3
Other
Base Product NumberLM337
Control Features-
Mfronsemi
Number of Regulators1
Output ConfigurationNegative
Output TypeAdjustable
Product StatusObsolete
Protection FeaturesOver Temperature, Short Circuit
Series-

Pinout and package

PackageTO-220AB (Pb-Free)

PinNameFunctionSource
1Adjust
2Output (Heatsink surface connected to Pin 2)
3Input

Documents

DatasheetDatasheet · 261.0 KB · 2026-11-09DatasheetDatasheet · 261.0 KB · 2026-11-09DatasheetDatasheet · 261.0 KB · 2026-11-09DatasheetDatasheet · 261.0 KB · 2026-09-21DatasheetDatasheet · 260.0 KB · 2026-09-21
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