Texas Instruments LM2594M-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.77 | $3.77 |
| 15+ | $3.65 | $54.75 |
| 25+ | $3.57 | $89.25 |
| 50+ | $3.37 | $168.50 |
| 100+ | $2.98 | $298.00 |
| N+ | $0.60 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | SIMPLE SWITCHER® |
| Packaging | Tube | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.2V |
| Voltage - Output (Max) | 37V |
| Current - Output | 500mA |
| Frequency - Switching | 150kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| ROHS |
The Texas Instruments LM2594M-ADJ/NOPB is a simple and reliable step-down (Buck) DC-DC converter. It accepts a wide input voltage from 4.5V to 40V and provides an adjustable output from 1.2V to 37V, with a maximum load current of 500mA. The device operates at a fixed 150kHz switching frequency, which allows for small external components while maintaining good efficiency. Its 8-SOIC package is easy to integrate into space-constrained designs. This converter is well-suited for industrial, automotive, and battery-powered applications requiring a robust and cost-effective power solution.
- Wide Input Voltage Range: 4.5V to 40V accommodates a variety of unregulated supplies and automotive transients.
- Simple Design: Fixed 150kHz frequency and minimal external components reduce design complexity and BOM cost.
- Adjustable Output: Output from 1.2V to 37V provides flexibility for different load requirements.
- Proven Reliability: Based on the industry-standard LM2594 family, known for robustness and ease of use.
- Compact SOIC Package: 8-SOIC footprint saves board space in space-limited applications.
Simple High-Voltage Step-Down Regulators
With a wide 4.5V to 40V input range, the LM2594M-ADJ/NOPB is ideal for converting unregulated DC supplies (e.g., 24V or 36V) down to lower voltages for industrial control circuits, sensors, and relays.
Battery-Powered Equipment
For battery-powered devices, this buck converter's 150kHz switching frequency and low dropout operation help maintain efficiency, extending battery life in portable instruments and remote monitoring systems.
Automotive Aftermarket Accessories
The 40V input tolerance makes it suitable for automotive environments where load-dump transients can occur, powering dashcams, sensors, and infotainment add-ons from a 12V battery.
Distributed Power Systems
In distributed power architectures, the LM2594M-ADJ/NOPB can provide a regulated local rail from a higher-voltage bus, simplifying board design and reducing noise coupling.
HVAC and Building Automation
Its robust input range and adjustable output make it a reliable choice for powering microcontrollers and communication interfaces in HVAC controllers and building automation panels.
Test and Measurement Equipment
The adjustable output (1.2V to 37V) allows designers to create versatile bench power supplies or internal rails for test equipment, with the 500mA capability covering many analog and digital circuits.
- Q: What type of converter is the LM2594M-ADJ/NOPB?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 40V.
- Q: What is the maximum output current?
- A: The maximum output current is 500mA.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 150kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 1.2V to 37V.
- Q: What type of converter is the LM2594M-ADJ/NOPB?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 40V.
- Q: What is the maximum output current?
- A: The maximum output current is 500mA.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 150kHz.
- Q: What package is available?
- A: It comes in an 8-SOIC (0.154", 3.90mm Width) package.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 1.2V to 37V.

LM2594M-ADJ/NOPB.pdf