BD33IA5JEFJ-E2

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

The BD33IA5JEFJ-E2 is a low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor, designed for power management integrated circuits (PMIC). It provides a fixed positive output voltage of 3.3 V with a maximum output current capability of 500 mA. The device operates within an input voltage range of 2.4 V to 5.5 V and maintains a typical dropout voltage of 400 mV, with a maximum specified at 600 mV under load conditions. Quiescent current consumption is extremely low at 5 uA, contributing to energy efficiency in battery-powered applications. The regulator features high accuracy with line regulation of 1% and load regulation of 1.5%. It is housed in an HTSOP-J8 surface-mount package and supports operation across a temperature range from -25°C to +85°C.

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

• Ultra-low quiescent current consumption of 5 uA for extended battery life
• High-accuracy voltage regulation with 1% line regulation and 1.5% load regulation
• Low dropout voltage characteristic ensuring stable output near input levels
• Compact HTSOP-J8 surface-mount packaging for space-constrained designs

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

• Portable electronic devices requiring efficient power management
• Battery-operated systems needing low standby current
• Embedded circuits requiring stable 3.3V logic supply
• Consumer electronics with limited thermal dissipation constraints

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

Verify the complete part number including suffixes such as E2 against official ROHM Semiconductor documentation to ensure correct revision and compliance status. Confirm RoHS compliance details through the manufacturer's certified datasheet or declaration of conformity. Cross-reference the HTSOP-J8 package dimensions with the official mechanical drawing prior to PCB layout finalization to prevent footprint mismatches during assembly.

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

Select this component when a fixed 3.3V output is required with minimal static power draw. Ensure the input voltage remains within the 2.4V to 5.5V operational window to maintain regulation. Consider the 500mA current limit and thermal dissipation capabilities of the HTSOP-J8 package relative to the expected load profile and ambient temperature conditions for reliable performance.

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

This LDO regulator belongs to ROHM's high-accuracy linear voltage regulator series, optimized for low-power applications. It shares the HTSOP-J8 form factor with other variants in the family, offering a standardized footprint for designers. The device integrates internal protection mechanisms typical of modern PMIC solutions, focusing on stability and efficiency without external compensation components.

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

Consult ROHM Semiconductor's official cross-reference guides or distributor databases for verified equivalent parts. Ensure any substitute matches the 3.3V fixed output, 500mA current rating, HTSOP-J8 package, and electrical specifications before implementation.