BD820F5UEFJ-CE2

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

The BD820F5UEFJ-CE2 is a fixed-output linear low-dropout regulator manufactured by ROHM Semiconductor. It provides a stable 5 V output with a maximum current capability of 200 mA. The device supports an input voltage range from 5.9 V to 42 V and features a typical dropout voltage of 400 mV at full load. Key electrical parameters include a quiescent current of 6 uA, a ripple rejection ratio of 70 dB, and line/load regulation of 10 mV. It operates within a temperature range of -40 C to +125 C in an HTSOP-J8 package.

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

• Integrates reset signal generation when output drops below threshold
• Includes adjustable watchdog timer functionality for system monitoring
• Provides thermal shutdown and over-current protection mechanisms

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

• Automotive electronic control units requiring high-voltage tolerance
• Microcontroller power supply circuits with reset requirements
• Industrial systems needing watchdog timer integration

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

Verify the specific suffix against official datasheets to confirm pinout and functional compatibility. Ensure the ordering code matches the required automotive grade specifications. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

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

Select this component for applications requiring a 5 V fixed rail with integrated system supervision. The high input voltage tolerance suits direct battery connections. Consider the low quiescent current for efficiency. Verify that the external capacitor values meet the timing requirements for the reset delay and watchdog functions specified in the technical documentation.

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

This regulator belongs to ROHM's automotive-grade LDO family designed for high-voltage environments. It combines standard voltage regulation with essential safety features like reset and watchdog timers. The HTSOP-J8 package facilitates surface-mount assembly. It serves as a robust power management solution for critical automotive and industrial loads.

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

BD820F50EFJ-CE2 is documented as a production line change variant with identical technical specifications. This substitute is recommended for new designs while maintaining backward compatibility for existing projects.