BD12IA5JEFJ-E2

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

The BD12IA5JEFJ-E2 is a low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor, designed for positive output applications. It provides a fixed output voltage of 1.5 V with a maximum output current capability of 0.5 A. The device operates within an input voltage range of 2.4 V to 5.5 V and features a typical dropout voltage of 400 mV, with a maximum of 600 mV. It maintains line regulation at 1% and load regulation at 1.5%. The quiescent current is specified at 5 uA. The component supports surface-mount installation in an HTSOP-J8 package and functions reliably across a temperature range of -25 C to +85 C.

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

• Fixed 1.5 V output voltage configuration
• Ultra-low static current consumption of 5 uA
• High-accuracy linear regulation performance
• Automotive-grade reliability qualification

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

• Battery-powered portable electronic devices
• Automotive infotainment system power supplies
• Sensor node voltage regulation
• Microcontroller core voltage supply

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

Verify the specific suffix E2 against the official ROHM datasheet to confirm pinout compatibility and tape-and-reel specifications. Ensure the HTSOP-J8 footprint matches the target PCB design. Confirm that the 1.5 V fixed output aligns with the load requirements, as adjustable variants exist within the same family. Check for RoHS compliance documentation prior to final procurement approval.

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

Select this component when a stable 1.5 V rail is required with minimal standby current draw. The 0.5 A output current suits moderate load applications. Consider the 400 mV typical dropout voltage to ensure sufficient input-output differential under all operating conditions. The wide input range up to 5.5 V allows flexibility in battery management systems.

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

This part belongs to the BD series of high-accuracy LDO regulators from ROHM, optimized for automotive and industrial use. It shares the HTSOP-J8 package form factor with other members like BD12IA5WEFJ-E2 but differs in output type and electrical characteristics. The series emphasizes low noise and high PSRR for sensitive analog circuits.

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

BD12IA5MEFJ-ME2 offers similar 0.5 A performance with extended temperature range (-40 C to +105 C). BD33IA5JEFJ-E2 provides a different fixed output voltage (3.3 V) with identical package and current ratings.