LM25116MH/NOPB

DC DC Switching Controllers Overview

The LM25116MH/NOPB is a wide input range synchronous buck controller manufactured by Texas Instruments. It operates with an input voltage range of 6 V to 42 V and supports output voltages from 1.215 V to 36 V. The device utilizes current mode control with a programmable switching frequency between 50 kHz and 1 MHz. It features adaptive dead-time control for external NMOS power switches, clock synchronization capability, and adjustable undervoltage lockout. The component is housed in a 20-PowerTSSOP package with an exposed thermal pad and functions within a junction temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Implements current mode control with simulated current slope for reliable operation at high input voltages and minimal duty cycles.
• Integrates adaptive dead-time control to drive external high-side and low-side NMOS power switches efficiently.
• Supports clock synchronization and user-selectable diode emulation mode to enhance efficiency under light load conditions.

DC DC Switching Controllers Applications

• High-voltage or wide-input-range point-of-load (POL) DC/DC converter designs
• Industrial systems requiring robust synchronous buck regulation
• Automotive electronics utilizing wide input voltage ranges

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and thermal pad configuration. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference the datasheet revision date to validate feature availability and electrical characteristics before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this controller for applications demanding wide input voltage tolerance up to 42 V. The synchronous architecture improves efficiency compared to non-synchronous alternatives. Consider the 20-PowerTSSOP package for its thermal performance via the exposed pad. Evaluate the need for clock synchronization if multiple converters operate in proximity to minimize noise interference.

DC DC Switching Controllers Part Context

This component belongs to the LM25116 family of wide input range synchronous buck controllers. It shares functional similarities with the LM5116 but is rated for lower maximum input voltages. The device serves as a core control element in DC-DC conversion stages, driving external MOSFETs rather than integrating them internally.

DC DC Switching Controllers Replacement Considerations

LM25116MHX/NOPB: Verify package compatibility and suffix differences. LM5116MHX/NOPB: Confirm input voltage requirements exceed 42 V limits.