LM2734ZSDX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2734ZSDX/NOPB is a synchronous step-down DC-DC regulator manufactured by Texas Instruments. It operates with an input voltage range of 3V to 20V and provides a single adjustable output from 0.8V to 18V, supporting up to 1A load current. The device integrates a fixed 3MHz switching frequency to minimize external component size. It features a 6-WSON package (3x3mm) with an exposed thermal pad for efficient heat dissipation. The IC includes internal compensation and supports shutdown mode, operating reliably across a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for synchronous rectification
• Fixed 3MHz switching frequency enables use of small inductors and capacitors
• Includes internal frequency compensation to simplify external component selection
• Supports shutdown mode to reduce quiescent current during standby

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Point-of-load regulation for digital signal processors and microcontrollers
• Industrial control systems with wide input voltage ranges
• Communication infrastructure power distribution networks

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'X' against the official datasheet, as it may denote a specific tape-and-reel configuration or manufacturing lot variant not always detailed in standard summaries. Confirm RoHS compliance status, as some legacy listings indicate non-compliance while NOPB variants typically adhere to environmental standards. Cross-reference the exact part number with Texas Instruments documentation to ensure pinout and electrical characteristics match your design requirements before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when space constraints require a compact 6-WSON package combined with high-frequency operation. It is suitable for designs needing a wide input voltage range up to 20V and an adjustable output down to 0.8V. Ensure the PCB layout can accommodate the exposed thermal pad for adequate heat sinking, as thermal management is critical at full load currents within the specified temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2734 family of synchronous buck converters from Texas Instruments. The family is designed for applications demanding high efficiency and small solution size. Variants within the series differ primarily in packaging options, such as WSON or SOT-23, and specific thermal or electrical optimizations, while maintaining core functionality like the 1A output capability and integrated power switches.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2734ZSD/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LM2734ZSDX/NOPB support synchronous rectification?

Yes, it integrates both high-side and low-side N-channel power MOSFETs for synchronous rectification.

What is the minimum output voltage achievable with this regulator?

The minimum adjustable output voltage is 0.8V.