LM34910CSD/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM34910CSD/NOPB is a non-synchronous buck regulator from Texas Instruments, designed for high-efficiency step-down conversion. It operates with an input voltage range of 8 V to 50 V and delivers up to 1.25 A output current. The device features a fixed 1 MHz switching frequency and supports output voltages from 2.5 V to 45 V. It utilizes a constant on-time control architecture and includes integrated overcurrent protection. The component functions within an operating temperature range of -40°C to +125°C and is housed in a WSON-10 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control architecture for simplified external component selection
• Integrated high-side N-channel power switch for efficient step-down conversion
• Built-in overcurrent protection with cycle-by-cycle current limiting
• Low quiescent current operation for improved efficiency at light loads

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics power distribution
• Consumer electronics power supplies
• Embedded system voltage conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'C' against the official datasheet to confirm it denotes the commercial temperature grade variant rather than the automotive qualified version. Ensure the ordering part number matches the exact package marking and tape/reel specifications required for surface-mount assembly processes. Cross-reference the manufacturer's latest revision history to confirm pinout compatibility and electrical parameter consistency before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, non-synchronous buck solution is required for inputs up to 50 V. The fixed 1 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the thermal performance of the WSON-10 package relative to the expected load current and ambient conditions. Verify that the constant on-time control loop stability meets the specific output capacitance requirements of the target application circuit design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM34910C series of DC-DC converters, which are engineered for general-purpose power management tasks. The series emphasizes ease of use through minimal external component counts and reliable operation across wide input voltage ranges. It serves as a standard solution for converting higher bus voltages to lower logic or peripheral supply levels in compact form factors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM34910CSDE/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What control topology does the LM34910CSD/NOPB utilize?

It employs a constant on-time (COT) control architecture.

Is the LM34910CSD/NOPB a synchronous rectifier device?

No, it is a non-synchronous buck regulator using an integrated high-side switch.