The LM137 are adjustable 3-terminal negative voltage regulators capable of supplying in excess of 1.5 A over an output voltage range of −37 V to −1.2 V. These regulators are exceptionally easy to apply, requiring only 2 external resistors to set the output voltage and 1 output capacitor for frequency compensation. The circuit design has been optimized for excellent regulation and low thermal transients. Further, the LM137 series features internal current limiting, thermal shutdown and safe-area compensation, making them virtually blowout-proof against overloads.
The LM137 serve a wide variety of applications including local on-card regulation, programmable-output voltage regulation or precision current regulation. The LM137 are ideal complements to the LM117 adjustable positive regulators.
| Output Options |
| Iout (Max) (A) |
| Vin (Max) (V) |
| Vin (Min) (V) |
| Vout (Max) (V) |
| Vout (Min) (V) |
| Fixed Output Options (V) |
| Package Group |
| Additional Features |
| Operating Temperature Range (C) |
| Rating |
| Vdo (Typ) (mV) |
| Iq (Typ) (mA) |
| Package Size: mm2:W x L (PKG) |
| LM137QML | LM120QML | LM137HVQML | LM137JAN |
|---|---|---|---|
| Adjustable Output Negative Output | Fixed Output Negative Output | Adjustable Output Negative Output | Adjustable Output Negative Output |
| 1.5 | 1.5 | 1.5 | 1.5 |
| -4.2 | -7 | -4.2 | -4.2 |
| -40 | -32 | -50 | -40 |
| -1.2 | -5 | -1.2 | -1.2 |
| -37 | -15 | -47 | -37 |
| -5 -12 -15 | |||
| DIESALE TO WAFERSALE | DIESALE TO | TO DIESALE | TO |
| Overcurrent Protection Thermal Shutdown | Overcurrent Protection Thermal Shutdown | Overcurrent Protection Thermal Shutdown | Overcurrent Protection Thermal Shutdown |
| -55 to 125 | -55 to 125 -55 to 150 | -55 to 125 -55 to 150 | -55 to 150 |
| Military | Military | Military | Military |
| 3000 | 2000 | 3000 | 3000 |
| 2 | |||
| 3TO: 92 mm2: 9.14 x 10.03(TO) 2TO: 989 mm2: 25.4 x 38.938(TO) | 3TO: 92 mm2: 9.14 x 10.03(TO) 2TO: 989 mm2: 25.4 x 38.938(TO) | 3TO: 92 mm2: 9.14 x 10.03(TO) | 3TO: 92 mm2: 9.14 x 10.03(TO) |
| Samples Not Available | Samples Not Available | Samples Not Available | Samples Not Available |
| Version | Part Number | Definition |
|---|---|---|
| Space | LM137QML-SP | Radiation tolerant, ceramic packaging and qualified for use in Space-based application |