LM2825HN-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2825HN-ADJ is a monolithic integrated power supply from Texas Instruments, functioning as a 1A step-down DC-DC converter. It utilizes buck topology to provide an adjustable output voltage ranging from 1.23V to the input limit. The device operates within a switching frequency of 150 kHz and supports a maximum input voltage of 40V. Designed for robust performance, it functions across an extended temperature range from -40°C to +85°C. The component is housed in a 24-pin DIP package, suitable for through-hole mounting in various power management applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a complete 1A step-down switching regulator with internal power switch
• Provides adjustable output voltage capability via external resistor network
• Operates at a fixed 150 kHz switching frequency for efficient energy conversion
• Supports high input voltage levels up to 40V for versatile power sourcing

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated 1A power rails
• Battery-powered equipment needing efficient step-down regulation
• Embedded systems utilizing adjustable voltage references for sensor biasing
• General-purpose DC-DC conversion in consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free compliance and RoHS status. Ensure the ordering part number matches the exact package style and thermal characteristics required for your PCB layout. Cross-reference the manufacturer's latest documentation to confirm availability and any potential obsolescence notices before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-chip solution for 1A buck conversion is required without external MOSFETs. It is appropriate for designs where a 150 kHz frequency aligns with EMI constraints and inductor size limitations. Consider the 24-DIP package if through-hole assembly is mandated. Verify that the input voltage does not exceed the 40V absolute maximum rating under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to Texas Instruments' family of integrated power supplies, designed to simplify DC-DC converter design by combining the controller, driver, and power switch into one IC. It serves as a cost-effective alternative to discrete solutions, reducing board space and component count while maintaining reliable performance in standard industrial and commercial temperature ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2825HN-ADJ/NOPB as the direct lead-free equivalent. Evaluate other TI buck converters like the LM2575 series for higher current needs, though pinouts and frequencies may differ significantly.