LM3370SD-3021/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3370SD-3021/NOPB is a dual synchronous step-down DC-DC converter manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It operates with an input voltage range of 2.7 V to 5.5 V and provides two fixed output voltages of 1.2 V and 1.85 V. Each channel supports an output current of 600 mA. The device features a switching frequency of 2 MHz and includes dynamic voltage scaling functionality. It is housed in a 16-pin WSON package and operates within a temperature range of -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual synchronous buck topology for efficient power conversion
• Integrated dynamic voltage scaling function
• Fixed output voltage configuration for simplified design
• Compact surface-mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Ultra-low voltage circuit driving from single lithium-ion batteries
• Portable electronic devices requiring multi-rail power supplies
• Industrial applications needing compact DC-DC solutions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for recent Product Change Notifications (PCN) regarding manufacturing site changes. Ensure ordering suffixes match exact electrical specifications. Request batch traceability documentation for critical industrial deployments.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual isolated outputs are required from a single 3.7V nominal source. Compare against LM3370 variants with adjustable outputs if voltage flexibility is needed. Consider thermal dissipation requirements given the 600mA per channel rating. Verify footprint compatibility with existing PCB layouts using the WSON-16 mechanical outline.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM3370 family of dual synchronous step-down converters. It shares architectural similarities with other members like the LM3370SD-4221/NOPB but differs in fixed output voltage settings. The series is designed for battery-powered applications, offering high efficiency and small solution size compared to linear regulators.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3370SDX-4221/NOPB offers similar topology but different fixed outputs (1.8V/3.3V). LM3370TL-3022/NOPB uses a 20-WFBGA package instead of WSON-16. Cross-reference pinouts and thermal pads before substitution.