BA18BC0WFP-E2 Equivalent & Substitute Parts

Part Overview

The BA18BC0WFP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, designed to provide a fixed 1.8V output at 1A maximum current. This positive fixed output regulator operates across an input voltage range up to 16V and includes integrated over-current and over-temperature protection. The device is actively produced and widely used in power management applications requiring stable low-voltage regulation in compact surface-mount packages.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

BA18BC0WFP-E2

Rohm SemiconductorIn Stock: 17588BA18BC0WFP-E2 Datasheet

Current PartRFQ

LF18CPT-TR

STMicroelectronicsIn Stock: 20284LF18CPT-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BA18BC0WFP-E2 is determined by the following critical parameters:

• Output Voltage Match: Fixed 1.8V output is mandatory
• Output Current Capability: Minimum 1A required for direct substitution
• Input Voltage Range: Maximum input voltage of 16V or greater
• Package Compatibility: TO-252-5 (DPAK) mechanical form factor
• Protection Features: Over-current and over-temperature protection required
• Control Features: Enable function required
• Regulatory Compliance: ROHS3 compliance and active product status

The LF18CPT-TR from STMicroelectronics meets the core electrical specifications but operates at reduced output current (500mA maximum). This part is classified as a functional substitute for applications where the full 1A output is not required.

Parameter Comparison

Engineering Selection Recommendations

Both the BA18BC0WFP-E2 and LF18CPT-TR are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

The BA18BC0WFP-E2 is the primary selection for applications requiring the full 1A output current specification. The LF18CPT-TR serves as a functional substitute only in applications where output current requirements do not exceed 500mA. Both devices operate within compatible input voltage ranges and provide equivalent protection features.

The LF18CPT-TR offers an extended operating temperature range to 125°C compared to the BA18BC0WFP-E2 at 105°C maximum, which may provide additional thermal margin in specific applications.

Frequently Asked Questions (FAQ)

Q: Can the LF18CPT-TR directly replace the BA18BC0WFP-E2 in all applications?

A: No. The LF18CPT-TR is limited to 500mA maximum output current, while the BA18BC0WFP-E2 supports 1A. Direct substitution is only valid for circuits designed for 500mA or less output current demand.

Q: Are the packages mechanically identical?

A: Both devices use the TO-252-5 (DPAK) package with 4 leads plus tab. Pin configuration and mechanical dimensions are compatible for PCB layout purposes.

Q: What is the difference in quiescent current between these parts?

A: The BA18BC0WFP-E2 specifies 0.5mA quiescent current, while the LF18CPT-TR specifies 1mA. This difference is relevant for low-power standby applications.

Q: Do both parts include enable control functionality?

A: Yes. Both the BA18BC0WFP-E2 and LF18CPT-TR include enable control features for power management applications.

Q: Are there thermal performance differences?

A: The LF18CPT-TR operates to 125°C maximum, providing 20°C additional thermal headroom compared to the BA18BC0WFP-E2 at 105°C. The LF18CPT-TR also specifies dropout voltage (0.7V @ 200mA typical), which is relevant for thermal design calculations.