BD3550HFN-TR

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The BD3550HFN-TR is an adjustable linear regulator manufactured by ROHM Semiconductor, classified under PMIC - Power Management ICs. It features a single output with an adjustable voltage range from 0.65 V to 2.7 V and supports a maximum output current of 0.5 A. The device operates within an input voltage range of 4.3 V to 5.5 V and maintains a typical dropout voltage of 0.2 V at full load. It utilizes an HSON-8 package (2.9x3x0.6 mm) and functions reliably across an operating temperature range of -10 °C to 100 °C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrates a high-precision reference voltage circuit with ±1% accuracy for stable regulation.
• Incorporates an Nch power MOSFET with ultra-low on-resistance to minimize power loss.
• Includes comprehensive protection mechanisms such as thermal shutdown, current limiting, and UVLO.
• Supports tracking functionality and soft start capabilities for synchronized system startup.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable electronic devices requiring efficient low-dropout regulation
• Battery-powered systems needing extended operational life
• Embedded circuits utilizing DDR or SDRAM termination requirements

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific suffix and packaging configuration when ordering, as availability may vary by region. Confirm RoHS compliance status directly with the manufacturer or authorized distributor prior to procurement. Ensure that the selected component matches the required thermal and electrical specifications for the intended application environment.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component for applications requiring a compact solution with adjustable output voltage in the 0.65 V to 2.7 V range. Consider its low quiescent current and small HSON-8 footprint for space-constrained designs. Evaluate the thermal performance given the 100 °C maximum operating temperature limit and ensure adequate PCB layout for heat dissipation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the BD3550 series of linear regulators designed for power management in portable electronics. It shares architectural similarities with other ROHM LDOs but is distinguished by its specific output current capability and adjustable voltage feature set. The series targets markets demanding high efficiency and minimal component count in small form factors.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

The BD3552HFN-TR is listed as a similar level replacement with the same pinout and package. Verify compatibility regarding output current ratings and specific feature sets before substitution.