BD3573YFP-ME2

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

The BD3573YFP-ME2 is a positive fixed-output linear low-dropout (LDO) voltage regulator manufactured by Rohm Semiconductor. It provides a fixed output voltage of 3.3 V with a maximum continuous output current of 500 mA. The device operates within an input voltage range of 4.5 V to 36 V and features a typical dropout voltage of 250 mV at full load, with a maximum specified dropout of 480 mV at 200 mA. Key electrical parameters include a quiescent current of 30 µA, a power supply rejection ratio (PSRR) of 55 dB at 120 Hz, line regulation of 10 mV, and load regulation of 20 mV. It is housed in a TO-252-5 surface-mount package and supports an operating temperature range from -40°C to +125°C.

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

• Integrates P-channel DMOS output transistors for low saturation voltage operation.
• Includes built-in protection circuits for over-current, thermal shutdown, and short-circuit conditions.

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

• General-purpose positive voltage regulation in electronic circuits
• Power management for automotive applications requiring high withstand voltage
• Battery-powered devices requiring low quiescent current

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

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix ME2 matches the required TO-252-5 package variant. Check for RoHS compliance status and ensure the part meets functional safety requirements if used in automotive contexts. Validate that the fixed 3.3V output aligns with system design specifications before procurement.

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

Select this component when a stable 3.3V rail is needed with up to 500mA load capability. It is suitable for designs requiring high input voltages up to 36V. Consider the thermal dissipation capabilities of the TO-252-5 package under expected load conditions. Ensure the application benefits from the low quiescent current and high PSRR characteristics provided by the internal circuitry.

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

This LDO belongs to the BD3573 series, designed for robust performance in demanding environments. It utilizes advanced DMOS technology to achieve low dropout characteristics while maintaining high efficiency. The device is part of Rohm's portfolio aimed at providing reliable power solutions for industrial and automotive electronics where stability and protection are critical.

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

BD3573YHFP-MTR is a pin-compatible alternative available in HRP-5 packaging. Verify package dimensions and thermal characteristics when substituting. Ensure the replacement maintains the same 3.3V fixed output and 500mA current rating.