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LM2831ZMFX is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC REG BUCK ADJ 1.5A SOT23-5. Review the specifications below when checking this part for your BOM.
The LM2831ZMFX/NOPB is a high-frequency synchronous step-down DC-DC converter manufactured by Texas Instruments. It operates with an input voltage range of 3 V to 5.5 V and delivers up to 1.5 A output current. The device features a fixed switching frequency of 3 MHz, enabling the use of small external components. Output voltage is adjustable from 600 mV to 4.5 V. It includes integrated protection features such as thermal shutdown and current limiting. The component supports operation across an extended temperature range from -40°C to +125°C junction temperature.
Verify the specific suffix (e.g., NOPB) against official datasheets to confirm RoHS compliance and package details. Ensure the ordering part number matches the exact pinout and thermal pad configuration required for the PCB layout. Cross-reference the manufacturer's latest documentation for any potential product change notifications or lifecycle status updates before finalizing procurement.
Select this component when space constraints require a compact solution due to the high 3 MHz switching frequency. It is suitable for applications needing efficient power conversion from single-cell lithium-ion sources. Consider the 1.5 A current limit and the need for external feedback resistors to set the desired output voltage within the specified range.
This part belongs to the LM2831 family of synchronous step-down converters. It shares core functionality with variants like LM2831XMFX and LM2831YMFX but differs in switching frequency and package type. The Z-series typically denotes specific packaging or frequency characteristics within the broader PMIC portfolio designed for portable and embedded power management.
Public confirmed substitute part numbers include LM2831ZSD/NOPB.
Explore related parts through Power Management (PMIC), Integrated Circuits (ICs), all product categories, ChipApex homepage.

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