

Overview
The LM2731XMF is a DC DC Converter made by Texas Instruments in a SOT-23-5 package with 5 pins. -40℃~+125℃@(TJ) 1 1.6MHz 1.8A 2.7V~14V 2.7V~22V Boost Boost Built-in No SOT-23-5 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (Regulator_Switching:LM2731XMF, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-5, from KiCad's library), ready for a KiCad board. 87 are in stock at JLCPCB (part C60946). 5 open-source boards in 5 repositories on GitHub use it.
Symbol
Footprint
Parameters
17- Features
- Overcurrent Protection
- Frequency - Switching
- 1.6MHz
- Function
- Boost
- Input Voltage
- 2.7V~14V
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+125℃@(TJ)
- Output Current
- 1.8A
- Output Current (Max)
- 1.8A
- Output Type
- Adjustable
- Output Voltage
- 2.7V~22V
- Quiescent Current
- 2mA
- Switch tube (built-in/external)
- Built-in
- Switching Frequency
- 1.6MHz
- Synchronous Rectification
- NO
- Synchronous Rectifier
- No
- Topology
- Boost
- Voltage - Supply
- 2.7V~14V
Order codes
2- LM2731XMF/NOPBLCSC C60946
- LM2731XMFLCSC C962956
Pinout
5| Pin | Name | Type |
|---|---|---|
| 1 | SW | Output |
| 2 | GND | Power in |
| 3 | FB | Input |
| 4 | EN | Input |
| 5 | VIN | Input |
Open-source boards using it
All 5- 2 layers67 × 84 mm

- 2 layers66 × 138.5 mm

- 2 layers51 × 60 mm

- 2 layers88 × 86 mm

Dumber v3
INSA-GEI/dumber
Depot du projet de temps reel 4eme année au departement GEI de l'INSA Toulouse.
70 parts9GPL-3.0 - 2 layers40 × 39 mm

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Is there a KiCad symbol and footprint for the LM2731XMF?
Yes. The symbol is Regulator_Switching:LM2731XMF and the footprint Package_TO_SOT_SMD:SOT-23-5, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM2731XMF?
SOT-23-5, with 5 pins. Its footprint is drawn on this page.
Where is the LM2731XMF datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM2731XMF?
JLCPCB lists it as part C60946, with 87 in stock; the sellers' links on this page open their listings.
What can replace the LM2731XMF?
Parts like it in the library: the TLV62569DBV by Texas Instruments, the SY8089AAAC by 矽力杰silergy, the SY8089A1AAC by 矽力杰silergy and the ETA3409S2F by etasolution. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the LM2731XMF?
5 boards in 5 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8TLV62569DBV
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SOT-23-5-40℃~+85℃@(TA) 1 1MHz 2.7V~5.5V 2A 55uA Adjustable Buck Buck Built-in Yes SOT-23-5 DC-DC Converters ROHS矽力杰silergyDC-DC ConvertersSY8089A1AAC
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SOT-23-5-40℃~+85℃ 1 1.6MHz~2.4MHz 2.6V~5.5V 2A 600mV~5.5V 80uA Adjustable Buck Buck Built-in Yes SOT-23-5 DC-DC Converters ROHSBLDC-DC Converters