BD3570FP-E2

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

The BD3570FP-E2 is a high-voltage LDO regulator from the BD357X series, designed for automotive body control applications. It provides a fixed 3.3V output with a maximum current of 500 mA and features ultra-low quiescent current of 30 μA typical. The device withstands up to 50 V supply voltage and operates within an ambient temperature range of -40°C to +125°C. It utilizes P-channel DMOS output transistors for low saturation voltage and supports ceramic capacitors at the output. Built-in protections include folded-type overcurrent protection and thermal shutdown.

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

• Ultra-low quiescent current consumption of 30 μA typical
• High output voltage precision with ±2% tolerance over wide temperature range
• Low-saturation voltage type P-channel DMOS output transistors
• Folded-type short circuit protection to minimize heat generation during malfunction

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

• Onboard vehicle microcontrollers
• Automotive body-control systems
• Car stereos
• Satellite navigation systems

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

Verify component authenticity through authorized ROHM distributors or official channels. Confirm the specific package variant (TO252-3) matches design requirements. Check for RoHS compliance status as indicated in official documentation. Ensure storage conditions adhere to manufacturer guidelines to maintain solderability and performance integrity before assembly.

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

Select this regulator for automotive environments requiring robust power supply under harsh conditions. Consider its high input voltage capability suitable for battery direct-coupled systems. Evaluate thermal dissipation needs based on load current and ambient temperature. Verify compatibility with ceramic output capacitors for stable operation without oscillation risks.

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

Part of the BD357XFP/HFP series developed by ROHM Semiconductor for automotive body control. The series includes variants with different output voltages and switch functions. The FP designation indicates TO252 packages, while HFP denotes HRP5 packaging. This series targets lower current consumption and simplified design for onboard vehicle electronics.

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

BD3571FP-E2 offers a 5.0V fixed output with identical package and electrical characteristics. BD3572FP-E2 provides variable output capability within the same series. Both are part of the same automotive-grade LDO family and share similar protection features and operating conditions.