LM2731XMF

Description

The LM2731XMF is a boost converter from Texas Instruments (TI) that offers a high level of integration and flexibility for portable and battery-powered applications. It features a 22V internal FET switch, allowing it to step up input voltages from 2.7V to 14V to higher output voltages. The LM2731XMF has a switching frequency of either 0.6MHz (Y option) or 1.6MHz (X option), making it suitable for applications where size and power consumption are critical. It also features low RDS(ON) DMOS FET, switch current up to 1.8A, and cycle-by-cycle current limiting. This device is commonly used in IoT devices, wearables, handheld meters, medical devices, and energy harvesting applications. Its compact SOT-23 package and low shutdown current make it an attractive option for designers looking to minimize board space and power consumption.

Features

The LM2731XMF features:

• 22-V DMOS FET switch
• 1.6-MHz (X Option), 0.6-MHz (Y Option) switching frequency
• Low RDS(ON) DMOS FET
• Switch current up to 1.8 A
• Wide input voltage range (2.7 V to 14 V)
• Low shutdown current (<1 µA)
• 5-Lead SOT-23 package
• Uses tiny capacitors and inductors
• Cycle-by-cycle current limiting
• Internally compensated

Package

The package type of LM2731XMF is SC-74A, SOT-23.

Pinout

The LM2731XMF has a 5-pin package (SOT-23). The pins are:

• VCC: Input voltage
• GND: Ground
• OUT: Output voltage
• EN: Enable input (active-high)
• SENSE: Feedback pin for current limiting and shutdown

This device is a boost converter that can step up an input voltage to a higher output voltage. It has features like cycle-by-cycle current limiting, internally compensated, and low shutdown current.

Manufacturer

The manufacturer of the LM2731XMF is Texas Instruments (TI), a leading semiconductor company that designs, manufactures, and tests semiconductors and related technologies. TI is a global technology leader in the development and manufacturing of analog and embedded processing semiconductors. The company's products include microcontrollers, processors, amplifiers, sensors, and other components used in a wide range of applications, including industrial, automotive, medical, and consumer electronics.

Applications

According to the product information, the LM2731XMF is suitable for applications in portable and battery-powered devices such as:

• IoT devices
• Wearables
• Handheld meters
• Medical devices

It's also commonly used in energy harvesting applications, boosting voltage from low-power sources like solar panels or thermoelectric generators.

Equivalent

Based on the features and specifications of LM2731XMF, some equivalent products could be:

• Texas Instruments' TPS62236
• ON Semiconductor's NCP1405
• STMicroelectronics' TNE71250M3

These devices offer similar functionality as the LM2731XMF, including step-up DC-DC conversion, low RDS(ON), and high switching frequency. However, please note that equivalent products may have slight variations in specifications or applications.