LM2731XMFIn StockTexas Instruments
LM2731XMF is a current-mode PWM switching boost regulator from Texas Instruments, operating from 2.7V to 14V input with SOT23-5 package. Features compact size, high efficiency, and pulse-width modulation control. From $0.64 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- LM2731XMF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.6425(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
- Current-mode PWM control for fast transient response and inherent cycle-by-cycle current limiting
- Wide input voltage range of 2.7V to 14V supports single-cell to multi-cell battery applications
- Ultra-compact SOT23-5 package ideal for space-constrained portable and handheld designs
- High switching frequency minimizes external component size and BOM cost
- Pb-free (RoHS compliant) packaging meeting global environmental standards
Applications
The LM2731XMF is widely used in portable consumer electronics such as smartphones, tablets, and handheld gaming devices where a compact boost converter is needed to step up battery voltage for display backlights or other subsystems. It is also suitable for industrial sensor nodes, wearables, and IoT devices requiring an efficient, small-footprint power supply from a single or dual-cell Li-ion battery. Additionally, it serves well in white LED drivers and camera flash circuits where regulated higher voltage output is required from a low-voltage source.
Specifications
| Pbfree Code | Yes |
| YTEOL | 4 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 14V |
| Input Voltage-Min | 2.7V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 2A |
| Output Voltage-Max | 22V |
| Output Voltage-Min | 1.23V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 1600kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Tin/Lead (Sn/Pb) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.953mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 20 |
| Package | SOT23 (5-Pin) |
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 LM2731XMF:
Switching Regulator, Current-mode, 2A, 1850kHz Switching Freq-Max, PDSO5
Frequently Asked Questions
What is the input voltage range of the LM2731XMF?
The LM2731XMF operates over an input voltage range of 2.7V to 14V, with a nominal input voltage of 5V. This wide range makes it suitable for single-cell Li-ion batteries (around 3.7V) as well as multi-cell or regulated 5V bus applications.
What control method does the LM2731XMF use, and why does it matter?
The LM2731XMF uses current-mode pulse width modulation (PWM) control. This technique provides faster transient response compared to voltage-mode control, inherent cycle-by-cycle current limiting for improved protection, and simplified loop compensation, making it easier to design stable boost converter circuits.
What package does the LM2731XMF come in, and is it RoHS compliant?
The LM2731XMF is available in the SOT23-5 (5-pin small outline transistor) package, which is extremely compact and ideal for space-constrained PCB layouts. It is fully Pb-free and RoHS compliant (JESD-609 code e0), meeting current global environmental and hazardous substance regulations.
What are typical applications for the LM2731XMF?
Typical applications include LED backlighting for LCD displays, white LED drivers for camera flash, boost converters in portable devices such as smartphones and wearables, and power supply rails in IoT sensor nodes. Its small SOT23-5 footprint and wide input range make it especially popular in battery-powered designs requiring a higher output voltage.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $4.6700 | $4.67 |
| 290+ | $0.6948 | $201.49 |
| 375+ | $0.6686 | $250.72 |
| 470+ | $0.6425 | $301.97 |
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