LM5035ASQ/NOPB

DC DC Switching Controllers Overview

The LM5035ASQ/NOPB is a half-bridge regulator and PWM controller designed for high-voltage applications, supporting input voltages up to 105 V. It integrates bias regulation, 2-A gate drivers, and synchronous rectifier controls. The device operates with switching frequencies of 200 kHz or 500 kHz and supports output currents up to 2 A. It functions within a supply voltage range of 8 V to 13 V and withstands junction temperatures from -40 °C to 125 °C.

DC DC Switching Controllers Feature Summary

• Integrates half-bridge and synchronous rectifier (SyncFET) drivers for efficient power conversion
• Supports isolation-capable designs through integrated digital isolator control interfaces
• Includes an internal bias regulator to simplify external component requirements

DC DC Switching Controllers Applications

• Quarter-brick isolated DC/DC converter reference designs
• High-voltage step-up or step-down DC-DC converters
• Embedded power systems requiring synchronous rectification

DC DC Switching Controllers Procurement Notes

Verify current manufacturing status as the LM5035ASQ/NOPB is listed as obsolete by Texas Instruments. Confirm availability of alternative packages such as TSSOP-20 variants like LM5035MH/NOPB if production continuity is required. Ensure compliance with RoHS and REACH directives during sourcing.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring integrated half-bridge and synchronous rectifier control in high-voltage environments. Consider package availability and obsolescence status when designing long-term products. Evaluate thermal performance within the specified -40 °C to 125 °C operating range.

DC DC Switching Controllers Part Context

The LM5035 series is manufactured by Texas Instruments, formerly National Semiconductor. The ASQ variant denotes automotive-grade qualification. The NOPB suffix indicates lead-free and RoHS-compliant construction. This part belongs to a family of PWM controllers designed for isolated power conversion topologies.

DC DC Switching Controllers Replacement Considerations

LM5035MH/NOPB is a documented substitute offering similar functionality in a TSSOP-20 package. Verify pin compatibility and thermal characteristics before substitution.