| PartNumber | LM138K | LM138K STEEL/NOPB | LM138K STEEL |
| Description | Linear Voltage Regulators 1.2-32V Adj Positive | Linear Voltage Regulators 5A Adjustable Output Linear Regulator / LDO in hermetic package 2-TO-3 -55 to 125 | IC REG LINEAR POS ADJ 5A TO3-2 |
| Manufacturer | STMicroelectronics | Texas Instruments | Texas Instruments |
| Product Category | Linear Voltage Regulators | Linear Voltage Regulators | PMIC - Voltage Regulators - Linear |
| RoHS | Y | - | - |
| Mounting Style | Through Hole | Through Hole | - |
| Package / Case | TO-3 | TO-3 | - |
| Number of Outputs | 1 Output | 1 Output | - |
| Polarity | Positive | Positive | - |
| Output Voltage | 1.2 V to 32 V | 1.2 V to 32 V | - |
| Output Current | 5 A | 5 A | - |
| Output Type | Adjustable | Adjustable | - |
| Input Voltage MAX | 35 V | 40 V | - |
| Input Voltage MIN | 4.2 V | 4.2 V | - |
| Minimum Operating Temperature | - 55 C | - 55 C | - |
| Maximum Operating Temperature | + 150 C | + 125 C | - |
| Load Regulation | 0.1 % | 0.3 % | - |
| Line Regulation | 0.005 %/V | 0.01 %/V | - |
| Series | LM138 | LM138 | - |
| Packaging | Bulk | Bulk | Tube |
| Height | 8.7 mm (Max) | - | - |
| Length | 39.5 mm (Max) | - | - |
| Width | 26.2 mm (Max) | - | - |
| Brand | STMicroelectronics | Texas Instruments | - |
| PSRR / Ripple Rejection Typ | 75 dB | - | - |
| Pd Power Dissipation | 50000 mW | 50 W | - |
| Product Type | Linear Voltage Regulators | Linear Voltage Regulators | - |
| Factory Pack Quantity | 100 | 50 | - |
| Subcategory | PMIC - Power Management ICs | PMIC - Power Management ICs | - |
| Unit Weight | 0.225789 oz | - | - |
| Operating Temperature Range | - | - 55 C to + 125 C | - |
| Package Case | - | - | TO-204AA, TO-3 |
| Operating Temperature | - | - | -55°C ~ 150°C |
| Mounting Type | - | - | Through Hole |
| Supplier Device Package | - | - | TO-3-2 |
| Voltage Input | - | - | 4.2 V ~ 40 V |
| Current Output | - | - | 5A |
| Voltage Output | - | - | 1.2 V ~ 32 V |
| Regulator Topology | - | - | Positive Adjustable |
| Voltage Dropout Typical | - | - | - |
| Number of Regulators | - | - | 1 |
| Current Limit Min | - | - | 7A |