LM3103MH/NOPBIn StockTexas Instruments
SIMPLE SWITCHER Synchronous 1MHz 0.75A Step-Down Voltage Regulator with 4.5V–42V input, constant on-time control, and adjustable output down to 0.6V. From $2.39, in stock, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LM3103MH/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3880(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
- 1MHz switching frequency enables compact external component selection
- Wide 4.5V–42V input voltage range supports industrial and automotive applications
- Adjustable output voltage down to 0.6V for flexible power rail design
- Constant on-time voltage-mode control for fast transient response
- 0.75A synchronous step-down topology for high efficiency at light loads
Applications
The LM3103MH/NOPB is well-suited for point-of-load DC-DC conversion in industrial control systems, automotive electronics, and telecom equipment. Its wide input range and adjustable output make it ideal for distributed power architectures, sensor modules, and MCU/DSP supply rails. The synchronous topology improves efficiency in battery-powered and always-on embedded designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO HAS ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.6V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | CONSTANT ON-TIME |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 18V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.75A |
| Output Voltage-Max | 7V |
| Output Voltage-Min | 0.6V |
| Output Voltage-Nom | 6V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 1.25mA |
| Supply Voltage-Nom (Vsup) | 18V |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1000kHz |
| Technology | MOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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
Compatible alternatives and drop-in replacements for LM3103MH/NOPB:
Switching Regulator, Current-mode, 0.75A, 1000kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What is the input voltage range of the LM3103MH/NOPB?
The LM3103MH/NOPB operates from a 4.5V to 42V input voltage range, with a nominal input of 18V. This wide range makes it suitable for industrial, automotive, and telecom power supply applications.
What output current and switching frequency does the LM3103MH/NOPB support?
The LM3103MH/NOPB delivers up to 0.75A output current at a fixed 1MHz switching frequency. The high switching frequency allows the use of smaller external inductors and capacitors, reducing board space.
Can the LM3103MH/NOPB produce adjustable output voltages?
Yes, the LM3103MH/NOPB supports an adjustable output voltage down to 0.6V, enabling flexible power rail design for a wide variety of low-voltage processors, sensors, and digital logic circuits.
What package does the LM3103MH/NOPB come in, and is it RoHS compliant?
The LM3103MH/NOPB is housed in a 16-pin Small Outline (R-PDSO-G16) package. It is Pb-free and RoHS compliant, making it suitable for modern green electronics manufacturing.
What are typical applications for the LM3103MH/NOPB?
Typical applications include point-of-load power conversion in industrial automation, automotive electronics, embedded systems, telecom infrastructure, and portable battery-powered devices requiring regulated low-voltage supplies.
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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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