LM3370TL-3806/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3370TL-3806/NOPB is a dual synchronous step-down DC/DC converter manufactured by Texas Instruments, originally developed under the National Semiconductor brand. It features two independent buck channels operating at a fixed 2 MHz switching frequency. The device accepts an input voltage range of 2.7 V to 5.5 V and provides adjustable output voltages down to 0.6 V per channel. Each channel supports up to 1.5 A of output current with integrated power FETs. It utilizes a 16-pin TSSOP package designed for space-constrained portable applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-channel architecture providing independent synchronous step-down conversion paths
• Fixed high-frequency PWM operation to minimize external component size
• Integrated synchronous rectification for enhanced efficiency
• Built-in protection mechanisms including thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics powered by single-cell lithium-ion batteries
• Ultra-low voltage circuit driving in mobile devices
• Single-chip FPGA power solutions requiring multiple rails
• Defense and industrial PMU designs needing bit-flip recovery resilience

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin as Texas Instruments despite the National Semiconductor heritage. Confirm the specific suffix TL-3806 matches the required pinout and internal configuration. Ensure the NOPB designation indicates lead-free compliance. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring two isolated low-voltage rails from a single battery source. The 2 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Evaluate the thermal performance within the TSSOP package against the expected load current. Consider the input voltage range compatibility with the primary power source.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3370 family of dual synchronous buck converters. It represents the transition period where National Semiconductor products were integrated into Texas Instruments' portfolio. The device is optimized for portable applications requiring high efficiency and small footprint. It serves as a core power management unit for complex digital loads.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM3370 variants with different output configurations or package types. Verify if newer revisions maintain identical electrical characteristics. Ensure substitute parts support the same 2 MHz switching frequency to preserve passive component values.