LM2597M-3.3/NOPBIn StockTexas Instruments
The LM2597M-3.3/NOPB is a step-down DC-DC switching regulator from Texas Instruments. It delivers 500mA output current with 3.3V fixed output, 40V max input, and PWM voltage-mode control in an 8-Pin SOIC package. From $2.085, in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM2597M-3.3/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.0850(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 500mA output current with high efficiency step-down conversion
- Fixed 3.3V output voltage with tight regulation accuracy
- Wide input voltage range: 4.5V to 40V for versatile applications
- Pulse Width Modulation (PWM) voltage-mode control for stable performance
- Compact 8-Pin SOIC package ideal for space-constrained designs
Applications
The LM2597M-3.3/NOPB is widely used in embedded systems and microcontroller power supplies where a regulated 3.3V rail is required from higher-voltage sources such as 12V or 24V bus. It is suitable for industrial control boards, automotive accessories, and IoT edge devices that demand efficient, low-noise step-down conversion. Its wide input range and compact SOIC footprint also make it a strong choice for telecommunications equipment and portable instrumentation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 40V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.5A |
| Output Voltage-Max | 37V |
| Output Voltage-Min | 3.3V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 173kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage and current rating of the LM2597M-3.3/NOPB?
The LM2597M-3.3/NOPB provides a fixed 3.3V output voltage with a maximum output current of 500mA. It accepts an input voltage ranging from 4.5V to 40V, making it suitable for a wide variety of power supply designs.
What control method does the LM2597M-3.3/NOPB use and why does it matter?
It uses Pulse Width Modulation (PWM) in voltage-mode control, which ensures stable output regulation and predictable transient response. This makes it easier to design compensation networks and achieve consistent performance across load variations.
What package type is the LM2597M-3.3/NOPB and is it RoHS compliant?
The LM2597M-3.3/NOPB comes in an 8-Pin SOIC (R-PDSO-G8) package, which is compact and easy to hand-solder or reflow. The '/NOPB' suffix indicates it is lead-free and RoHS compliant (JESD-609 Code: e3), suitable for environmentally conscious designs.
What are typical applications for the LM2597M-3.3/NOPB?
Typical applications include 3.3V power rails for microcontrollers, FPGAs, and DSPs in embedded systems, as well as industrial control boards, automotive accessories, IoT devices, and telecom equipment requiring efficient step-down voltage conversion from a 12V or 24V bus.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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| 1+ | $4.1700 | $4.17 |
| 3+ | $2.7800 | $8.34 |
| 10+ | $2.0850 | $20.85 |
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