Texas Instruments LM138KG-MW8
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $87.34 | $87.34 |
| 15+ | $20.09 | $301.35 |
| 25+ | $19.66 | $491.50 |
| 50+ | $18.56 | $928.00 |
| 100+ | $16.38 | $1,638.00 |
| N+ | $3.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Adjustable |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 35V |
| Voltage Dropout (Max) | - |
| Current - Output | 5A |
| Current - Quiescent (Iq) | - |
| Current - Supply (Max) | - |
| PSRR | 60dB (120Hz) |
| Control Features | - |
| Protection Features | Over Temperature |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | Die |
| Supplier Device Package | Wafersale |
| ROHS |  |
The LM138KG-MW8 is a high-current adjustable linear regulator from Texas Instruments, capable of delivering up to 5A with an output voltage adjustable up to 35V. Its 60dB PSRR at 120Hz ensures clean power for sensitive loads. Offered in a Wafersale format, this LDO is designed for integration into hybrid circuits and multi-chip modules where space is at a premium.
- High Output Current: 5A capability supports demanding loads without the need for external pass transistors.
- Wide Adjustable Range: Output from 1.2V to 35V provides design flexibility across various applications.
- Good Ripple Rejection: 60dB PSRR at 120Hz effectively filters mains-frequency noise.
- Die Form Factor: Wafersale package enables compact hybrid assembly and improved thermal management.
High-Current Adjustable Power Supplies
With a 5A output capability and adjustable output up to 35V, the LM138KG-MW8 is ideal for benchtop power supplies and industrial power stages where precise voltage control is required.
Laboratory Test Equipment
The 60dB PSRR at 120Hz helps minimize mains hum in sensitive measurement instruments, ensuring clean and stable DC rails for analog front-ends.
Battery Charging Circuits
For lead-acid or lithium battery chargers, the adjustable output allows precise setting of the float voltage, while the high current rating supports fast charging.
Audio Amplifier Power Stages
The low noise and good ripple rejection make this LDO suitable for powering high-current audio amplifier stages, reducing audible hum and improving signal fidelity.
Industrial Control Systems
In factory automation, the LM138KG-MW8 can provide a stable, adjustable rail for PLCs and motor controllers, handling transient loads up to 5A with ease.
Custom Hybrid Circuits
The Wafersale package is specifically designed for hybrid microelectronics, allowing designers to integrate a high-performance 5A regulator directly into a custom substrate.
- Q: What is the output voltage range of the LM138KG-MW8?
- A: The LM138KG-MW8 is an adjustable LDO regulator with a maximum output voltage of 35V. The minimum is set by the internal reference of 1.2V.
- Q: What is the maximum output current?
- A: This regulator can deliver up to 5A of continuous output current, making it suitable for high-power applications.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.2V above the desired output voltage. The absolute maximum input is not specified in the provided data, but the output can be adjusted up to 35V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not explicitly listed in the provided technical data. Please refer to the full datasheet for this parameter.
- Q: What is the PSRR performance?
- A: The power supply rejection ratio is 60dB at 120Hz, providing good filtering of low-frequency ripple.
- Q: What package is the LM138KG-MW8 available in?
- A: This part is offered in a Wafersale (die) form, intended for hybrid or multi-chip module assembly.
LM138KG-MW8.pdf
- Q: What is the output voltage range of the LM138KG-MW8?
- A: The LM138KG-MW8 is an adjustable LDO regulator with a maximum output voltage of 35V. The minimum is set by the internal reference of 1.2V.
- Q: What is the maximum output current?
- A: This regulator can deliver up to 5A of continuous output current, making it suitable for high-power applications.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.2V above the desired output voltage. The absolute maximum input is not specified in the provided data, but the output can be adjusted up to 35V.
- Q: What is the dropout voltage?
- A: The dropout voltage is not explicitly listed in the provided technical data. Please refer to the full datasheet for this parameter.
- Q: What is the PSRR performance?
- A: The power supply rejection ratio is 60dB at 120Hz, providing good filtering of low-frequency ripple.
- Q: What package is the LM138KG-MW8 available in?
- A: This part is offered in a Wafersale (die) form, intended for hybrid or multi-chip module assembly.
