LM2738XMY/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM2738XMY/NOPB is a current-mode PWM step-down DC-DC switching regulator with 1.5 A output capability. It accepts 3 V to 20 V input and operates at user-selectable 550 kHz or 1.6 MHz switching frequency in an 8-pin MSOP package. Designed for efficient point-of-load regulation in space-constrained boards.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- LM2738XMY/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.5500(MOQ 500)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM2738XMY/NOPB?
- 1.5 A continuous output current with 3 V to 20 V wide input voltage range for versatile point-of-load regulation
- Selectable 550 kHz or 1.6 MHz switching frequency allowing optimisation between efficiency and inductor size
- Current-mode PWM control providing fast load-transient response and cycle-by-cycle current limiting
- Internal soft-start and enable pin for sequencing in multi-rail power supply designs
- 8-pin MSOP compact package enabling high-density power converter layouts on small PCBs
What is LM2738XMY/NOPB used for?
The LM2738XMY/NOPB delivers efficient 5 V or 3.3 V point-of-load power from 12 V industrial or automotive input rails in embedded computing, instrumentation, and communications cards. Its selectable 1.6 MHz switching frequency allows use of smaller inductors and capacitors, benefiting densely packed PCBs in portable and rack-mount equipment. Current-mode control and cycle-by-cycle current limiting make it well suited for designs that experience dynamic load steps, such as FPGA core power, DSP supplies, and multi-phase motor drive gate drivers.
What are the specifications of LM2738XMY/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| 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 | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1.5A |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1600kHz |
| Technology | BICMOS |
| 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 |
Where can I find the LM2738XMY/NOPB datasheet?
LM2738XMY/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM2738XMY/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output current and input voltage range does the LM2738XMY/NOPB support for point-of-load regulation?
The LM2738XMY/NOPB supports a 3 V to 20 V input range and provides up to 1.5 A of continuous output current. This combination covers common industrial 12 V and 5 V bus voltages, as well as automotive 14.4 V rails, with sufficient headroom for single-board computing and FPGA I/O bank power supplies.
How does the selectable switching frequency of 550 kHz versus 1.6 MHz affect component selection for the LM2738XMY/NOPB?
At 1.6 MHz the inductor value can be reduced to approximately 2.2 µH to 4.7 µH, compared to 10 µH to 22 µH at 550 kHz, shrinking inductor physical size and cost. However, 550 kHz yields higher efficiency by reducing switching losses, making it preferable for battery-powered designs where every milliwatt matters.
What protection features does the LM2738XMY/NOPB include for robust power-supply design?
The LM2738XMY/NOPB includes cycle-by-cycle current limiting that caps the peak inductor current on every switching cycle, preventing damage during short-circuit events. It also has internal soft-start to limit inrush current during start-up, and thermal shutdown to protect the die if junction temperature exceeds safe limits.
For a compact power board, what footprint does the 8-pin MSOP package of the LM2738XMY/NOPB occupy?
The 8-pin MSOP package body measures approximately 3 mm x 3 mm with 0.65 mm lead pitch, giving a very small converter footprint. Combined with a small 4.7 µH inductor at 1.6 MHz, the total solution area can be kept under 100 mm², making it practical for tight PCB layouts in embedded modules and mezzanine cards.
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Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $1.7500 | $875.00 |
| 1000+ | $1.6500 | $1650.00 |
| 10000+ | $1.5500 | $15500.00 |
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