LM3370SDX-4221/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3370SDX-4221/NOPB is a dual synchronous step-down DC-DC converter manufactured by Texas Instruments. It operates within an input voltage range of 2.7 V to 5.5 V and provides two independent output channels with fixed voltages of 1.8 V and 3.3 V. Each channel supports a maximum output current of 600 mA. The device utilizes a 2 MHz switching frequency and functions in a buck topology. It is housed in a WSON-16 package and is rated for an operating temperature range from -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual synchronous step-down architecture providing independent regulated outputs
• Integrated dynamic voltage scaling functionality for power optimization
• Compact surface-mount packaging suitable for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring multiple low-voltage rails
• Embedded systems utilizing single-cell lithium-ion battery inputs
• Industrial control modules needing efficient DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix code to ensure correct output voltage configuration, as variations exist within the LM3370 family. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure ordering quantities align with standard reel sizes if purchasing in bulk. Cross-reference the datasheet revision date to confirm compatibility with current design requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a dual-output solution is required from a single input source without external synchronization needs. The fixed 1.8 V and 3.3 V outputs simplify bill of materials compared to adjustable regulators. Consider the 600 mA per channel limit against peak load demands. The WSON-16 package offers thermal performance benefits over larger footprints while maintaining electrical efficiency at high switching frequencies.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3370 series of power management integrated circuits designed for portable applications. It complements other Texas Instruments regulators by offering integrated dual-channel capability. The series focuses on high efficiency and small form factor solutions for battery-powered electronics requiring stable voltage regulation under varying load conditions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3370SDX-3621/NOPB serves as a functional alternative within the same series, though it features different fixed output voltage configurations. Verify pinout compatibility and thermal characteristics before substitution. Other LM3370 variants may offer adjustable outputs or different package options depending on specific design constraints.