LM3495MTCX/NOPB

DC DC Switching Controllers Overview

The LM3495MTCX/NOPB is a buck switching controller from Texas Instruments (formerly National Semiconductor) utilizing emulated peak current mode control. It operates with an input voltage range of 2.9V to 18V and supports output voltages from 600mV to 5.5V. The device delivers up to 10A output current with a programmable switching frequency between 200kHz and 1.5MHz. It features a maximum duty cycle of 80% and functions within a temperature range of -40°C to +125°C. The component is housed in a 16-pin TSSOP package.

DC DC Switching Controllers Feature Summary

• Emulated peak current mode control architecture for stable operation at low duty cycles
• Wide input voltage range supporting direct battery or bus connection
• Programmable switching frequency allows optimization for size and efficiency
• Integrated soft-start and protection features for reliable startup

DC DC Switching Controllers Applications

• Point-of-load regulation for processors and FPGAs
• Low voltage distribution architectures
• Industrial and telecom power supplies
• Battery-powered equipment step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the manufacturer designation, as the part originates from National Semiconductor but is now managed by Texas Instruments. Confirm the suffix NOPB indicates lead-free compliance and RoHS adherence. Ensure the TSSOP-16 package matches your PCB footprint requirements. Cross-reference the specific revision level if critical timing parameters are involved in your design.

DC DC Switching Controllers Selection Notes

Select this controller when low output voltage regulation is required with high current capability. The emulated peak current mode offers advantages over traditional peak current mode by eliminating sub-harmonic oscillation issues at low duty cycles. Consider the 200kHz to 1.5MHz frequency range to balance magnetic component size against switching losses. Evaluate thermal performance given the 10A current rating and TSSOP-16 package constraints.

DC DC Switching Controllers Part Context

This component belongs to the LM3495 family of buck controllers designed for low-output voltage applications. It replaces older linear regulators in high-current scenarios to improve efficiency. The transition from National Semiconductor to Texas Instruments maintains technical continuity. The device is suitable for modern digital loads requiring precise voltage regulation and fast transient response.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other Texas Instruments emulated peak current mode buck controllers such as the LM3492 or LM3493 series, depending on pin compatibility and current requirements. Verify that alternative parts support the same 600mV minimum output voltage and 18V maximum input voltage specifications.