LM2738XMYIn StockTexas Instruments
LM2738XMY is a current-mode PWM step-down DC-DC switching regulator with adjustable output from 0.8V to 18V, 3V to 20V input range, and 28-spec parametric coverage. Available in compact SOT-23 package for portable and industrial power supply designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM2738XMY Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control for fast transient response and accurate regulation
- Wide input voltage range: 3V to 20V, suitable for battery and adapter-powered systems
- Adjustable output voltage from 0.8V to 18V via external resistor divider
- Compact Small Outline Package (MSOP-8) for space-constrained PCB layouts
- Internally compensated design reduces external component count
Applications
The LM2738XMY is widely used in portable consumer electronics, industrial control systems, and telecom equipment requiring efficient DC-DC step-down conversion. Its wide input range and adjustable output make it ideal for point-of-load regulators in embedded systems, battery-powered devices, and distributed power architectures. It also suits applications such as LED drivers, FPGA core supply, and DSP power rails.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 18V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 20V |
| Input Voltage-Min | 3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Output Current-Max | 2.9A |
| Output Voltage-Max | 18V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1920kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2738XMY:
Switching Regulator, Current-mode, 1.5A, 1600kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What is the input voltage range of the LM2738XMY?
The LM2738XMY accepts an input voltage from 3V to 20V, with a nominal operating voltage of 12V. This wide range makes it compatible with a variety of power sources including single-cell Li-ion batteries, USB, and standard 12V or 15V adapters used in industrial and consumer applications.
What output voltage can the LM2738XMY regulate to?
The output voltage of the LM2738XMY is fully adjustable from 0.8V to 18V using an external resistor divider connected to the feedback pin. This flexibility allows engineers to set precise voltages for microcontrollers, FPGAs, memory, and analog circuits in a single design.
What control method does the LM2738XMY use?
The LM2738XMY uses current-mode pulse width modulation (PWM) control, which provides excellent line and load regulation, fast transient response, and inherent cycle-by-cycle current limiting. This makes it highly suitable for noise-sensitive and efficiency-critical power supply designs.
What package is the LM2738XMY available in?
The LM2738XMY is available in a Small Outline Package (MSOP-8/PDSO-G8), offering a compact PCB footprint ideal for space-constrained applications such as portable devices, wearables, and dense industrial PCB designs.
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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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