BD33HC5MEFJ-ME2 Equivalent & Substitute Parts

Part Overview

The BD33HC5MEFJ-ME2 is a linear voltage regulator IC from Rohm Semiconductor designed for positive fixed 3.3V output applications. This automotive-grade regulator (AEC-Q100 qualified) delivers 1.5A output current in an 8-HTSOP-J surface mount package. The device is currently active in production with 3353 units in stock. Equivalent parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or procurement preferences while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3.3V
Output Current	1.5A
Input Voltage (Max)	8V
Voltage Dropout (Max)	1.2V @ 1.5A
Quiescent Current	0.6 mA
Package Type	8-HTSOP-J (8-SOIC, 0.154" / 3.90mm Width)
Operating Temperature Range	-40°C to 105°C
Protection Features	Over Current, Over Temperature, Soft Start
Control Features	Enable
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

The BD33HC5MEFJ-LBH2 qualifies as a parametric equivalent to the BD33HC5MEFJ-ME2 based on strict alignment of the following critical parameters:

Output voltage specification: 3.3V fixed
Output current capability: 1.5A
Maximum input voltage: 8V
Voltage dropout characteristic: 1.2V @ 1.5A
Package designation: 8-HTSOP-J
Quiescent current: 0.6 mA
Supply current (Max): 1.2 mA
Protection and control features: Over Current, Over Temperature, Soft Start, Enable
Operating temperature range: -40°C to 105°C
Mounting type: Surface Mount
RoHS compliance: ROHS3 Compliant
Moisture sensitivity level: 1 (Unlimited)

Both parts share the same base product number (BD33HC5) and are manufactured by Rohm Semiconductor. The substitution is valid for applications requiring identical electrical performance and mechanical compatibility.

Parameter Comparison

Parameter	BD33HC5MEFJ-ME2	BD33HC5MEFJ-LBH2
Manufacturer	Rohm Semiconductor	Rohm Semiconductor
Category	Power Management (PMIC)	Power Management (PMIC)
Output Voltage (Fixed)	3.3V	3.3V
Output Current	1.5A	1.5A
Input Voltage (Max)	8V	8V
Voltage Dropout (Max)	1.2V @ 1.5A	1.2V @ 1.5A
Quiescent Current	0.6 mA	0.6 mA
Supply Current (Max)	1.2 mA	1.2 mA
Package / Case	8-SOIC (0.154", 3.90mm Width) Exposed Pad	8-SOIC (0.154", 3.90mm Width) Exposed Pad
Supplier Device Package	8-HTSOP-J	8-HTSOP-J
Operating Temperature	-40°C to 105°C	-40°C to 105°C
Protection Features	Over Current, Over Temperature, Soft Start	Over Current, Over Temperature, Soft Start
Control Features	Enable	Enable
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Active	Active
Current Inventory	3353 Pcs	1325 Pcs

Engineering Selection Recommendations

Both the BD33HC5MEFJ-ME2 and BD33HC5MEFJ-LBH2 are active production parts with ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations. The BD33HC5MEFJ-ME2 offers higher inventory availability (3353 units) compared to the BD33HC5MEFJ-LBH2 (1325 units). Selection between these parts should be based on procurement lead time requirements and supply chain availability. Both parts are functionally interchangeable for applications requiring a 3.3V, 1.5A linear regulator in the 8-HTSOP-J package with automotive-grade specifications.

Frequently Asked Questions (FAQ)

Q: Can BD33HC5MEFJ-LBH2 be used as a direct replacement for BD33HC5MEFJ-ME2?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage, current rating, dropout voltage, package type, and protection features. No circuit modifications are required for substitution.

Q: Are there differences in the automotive qualification between these parts?

A: The BD33HC5MEFJ-ME2 explicitly lists AEC-Q100 automotive series qualification. The BD33HC5MEFJ-LBH2 does not specify series qualification in the provided data. Verify automotive compliance requirements with the manufacturer if AEC-Q100 certification is mandatory for your application.

Q: Do both parts use the same package footprint?

A: Yes. Both parts use the 8-HTSOP-J package (8-SOIC, 0.154" / 3.90mm width) with exposed pad. PCB layouts and footprints are identical and interchangeable.

Q: What is the difference between the part number suffixes -ME2 and -LBH2?

A: The suffixes indicate different manufacturing batches or distribution channels from Rohm Semiconductor. The base product number BD33HC5 and all electrical specifications remain identical. Consult the manufacturer for specific batch or traceability information if required.

Q: Are both parts suitable for high-temperature automotive applications?

A: Both parts operate across -40°C to 105°C, meeting automotive temperature requirements. Verify specific application thermal conditions against the maximum junction temperature and thermal resistance specifications in the device datasheet.

Q: What inventory considerations should influence part selection?

A: The BD33HC5MEFJ-ME2 has 3353 units in stock versus 1325 units for BD33HC5MEFJ-LBH2. For high-volume production or time-sensitive projects, the higher inventory availability of the BD33HC5MEFJ-ME2 may reduce procurement risk.

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