BA1117FP-E2 Equivalent & Substitute Parts

Part Overview

The BA1117FP-E2 is a linear voltage regulator IC manufactured by Rohm Semiconductor, classified as a Power Management (PMIC) component. It provides positive adjustable output with 1A current capacity in a TO-252-3 surface mount package. The device is currently active in production and widely stocked (39,900 pcs available). Substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain disruptions, or specific application parameters that fall within the electrical and mechanical compatibility range.

Substiute Parts

BA1117FP-E2

Rohm SemiconductorIn Stock: 39953BA1117FP-E2 Datasheet

Current PartRFQ

LM1117DTX-ADJ/NOPB

Texas InstrumentsIn Stock: 20342LM1117DTX-ADJ/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BA1117FP-E2 is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Output configuration must be positive adjustable
• Minimum output voltage must be ≤1.25V
• Maximum output voltage must be ≥8.6V
• Output current must be ≥1A
• Package type must be TO-252-3 (DPAK with 2 Leads + Tab)
• Mounting type must be surface mount
• RoHS3 compliance required

Mechanical Compatibility:

• Identical package footprint (TO-252-3, SC-63)
• Pin configuration compatibility with DPAK standard

The LM1117DTX-ADJ/NOPB from Texas Instruments meets these substitution criteria. While it features a higher maximum input voltage (15V vs 10V) and lower dropout voltage (1.2V @ 800mA vs 1.4V @ 1A), these parameters represent improved or equivalent performance characteristics. The reduced output current specification (800mA vs 1A) represents a functional limitation that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the BA1117FP-E2 and LM1117DTX-ADJ/NOPB are active production components with ROHS3 compliance and equivalent protection features. Selection between these parts should be based on the following factors:

BA1117FP-E2 Selection Criteria:

• Applications requiring 1A output current
• Input voltage limited to 10V maximum
• Operating temperature range requirement of -20°C to 105°C
• Rohm Semiconductor supply chain preference

LM1117DTX-ADJ/NOPB Selection Criteria:

• Applications with output current requirements ≤800mA
• Input voltage up to 15V
• Operating temperature range of 0°C to 125°C acceptable
• Texas Instruments supply chain preference
• Lower dropout voltage beneficial for low-headroom applications

Both devices provide identical output voltage adjustment range (1.25V to 8.6V minimum/maximum overlap) and equivalent PSRR performance. The choice between substitutes depends on whether the application current requirement can be satisfied by 800mA output and whether the extended input voltage range of the LM1117DTX-ADJ/NOPB provides system-level advantages.

Frequently Asked Questions (FAQ)

Q: Can the LM1117DTX-ADJ/NOPB directly replace the BA1117FP-E2 in all applications?

A: Direct replacement is possible only when the application output current requirement does not exceed 800mA. The LM1117DTX-ADJ/NOPB is rated for 800mA maximum output, while the BA1117FP-E2 supports 1A. Both devices share identical TO-252-3 package footprints and pin configurations, enabling mechanical and electrical compatibility within the current limitation.

Q: What are the key differences in electrical performance?

A: The LM1117DTX-ADJ/NOPB features a higher maximum input voltage (15V vs 10V) and lower dropout voltage (1.2V @ 800mA vs 1.4V @ 1A). Output voltage adjustment range, PSRR, and protection features are equivalent. The primary functional difference is the reduced output current specification.

Q: Are there temperature range considerations for substitution?

A: The BA1117FP-E2 operates from -20°C to 105°C, while the LM1117DTX-ADJ/NOPB operates from 0°C to 125°C. Applications requiring operation below 0°C must use the BA1117FP-E2. Applications requiring operation above 105°C can use the LM1117DTX-ADJ/NOPB.

Q: Do both parts require identical PCB layout and external component values?

A: Both devices use identical TO-252-3 package footprints and pin configurations. External resistor networks for output voltage adjustment and bypass capacitor requirements follow standard LM1117/BA1117 design practices and are interchangeable between the two parts.

Q: What is the moisture sensitivity level difference?

A: The BA1117FP-E2 has MSL 1 (Unlimited), while the LM1117DTX-ADJ/NOPB has MSL 2 (1 Year). This affects storage and handling requirements, with the LM1117DTX-ADJ/NOPB requiring more stringent moisture control during storage and assembly.

Q: Are both parts REACH and RoHS compliant?

A: Both the BA1117FP-E2 and LM1117DTX-ADJ/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.