BD3533HFN-TR

Special Purpose Regulators Overview

The BD3533HFN-TR is a DDR termination regulator IC manufactured by ROHM Semiconductor, designed for JEDEC standard DDR-SDRAM applications. It operates within an input voltage range of 2.7 V to 5.5 V and features a single output channel housed in an 8-HSON surface-mount package. The device supports an operating temperature range from -20°C to +100°C and includes thermal shutdown protection. This component serves as a specialized power management integrated circuit (PMIC) for memory systems.

Special Purpose Regulators Feature Summary

• Integrates a push-pull power supply for VTT termination
• Includes a dedicated reference voltage circuit (VREF)
• Features under-voltage lockout (UVLO) and thermal shutdown protection

Special Purpose Regulators Applications

• Power supply for DDR1/2-SDRAM
• DDR bus termination regulation
• Memory controller reference voltage generation

Special Purpose Regulators Procurement Notes

Verify the specific suffix and tape-and-reel quantity against the manufacturer's latest datasheet before ordering. Confirm that the 8-HSON package dimensions match your PCB footprint requirements. Check for any design-not-recommended status updates or lifecycle changes directly with ROHM Semiconductor to ensure long-term availability for production.

Special Purpose Regulators Selection Notes

Select this component when a compact solution for DDR termination is required. Ensure the input voltage stays within the 2.7 V to 5.5 V range. Verify that the thermal performance of the 8-HSON package meets the system's power dissipation needs under maximum load conditions.

Special Purpose Regulators Part Context

This part belongs to the BD3533 series of DDR termination regulators. It is specifically engineered to provide stable VTT and VREF voltages for synchronous dynamic random-access memory. The HSON package offers a small form factor suitable for space-constrained mobile and embedded electronics.

Special Purpose Regulators Replacement Considerations

BD3533F-E2 and BD3533FVM-TR are related parts in the same family but differ in package type and current capacity.