LM3210TLE/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3210TLE/NOPB is a miniature, adjustable step-down switching regulator IC manufactured by Texas Instruments. It integrates a 1.25A synchronous power switch and operates within an input voltage range of 2.7V to 5.5V. The device provides a single positive output adjustable from 0.5V to 3.6V. Packaged in the SC-74A (SOT-753) footprint, it supports fixed frequencies of 1.2MHz or 2.2MHz for compact passive component selection. Key features include integrated compensation, cycle-by-cycle current limiting, and thermal shutdown protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-efficiency synchronous power switch capable of delivering up to 1.25A output current
• Supports adjustable output voltages ranging from 0.5V to 3.6V with external resistor setting
• Includes comprehensive protection mechanisms such as cycle-by-cycle current limit and thermal shutdown
• Utilizes a compact SC-74A package to minimize printed circuit board area requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics
• Point-of-load regulation for digital signal processors
• Embedded systems requiring efficient DC-DC conversion
• Communication equipment power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and package marking against the official Texas Instruments datasheet to confirm the 1.25A synchronous buck regulator specification. Ensure the ordering part number matches the required frequency option if applicable. Confirm RoHS compliance status through the manufacturer's documentation before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for stepping down 3.3V or 5V rails to lower logic voltages. The integrated synchronous design offers higher efficiency compared to non-synchronous alternatives at moderate loads. Evaluate the maximum load current requirement against the 1.25A limit and ensure adequate thermal dissipation for the small SC-74A package.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM3210 family of miniaturized DC-DC converters. It is designed to replace linear regulators in applications where efficiency and heat dissipation are critical constraints. The SOT-753 package allows for high-density PCB layouts suitable for space-constrained mobile and handheld devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements may include other Texas Instruments synchronous buck regulators in similar packages, such as the TPS621xx series. Verify pin compatibility and electrical specifications before substitution.