LP3883ESX-1.8/NOPB Equivalent & Substitute Parts

Part Overview

The LP3883ESX-1.8/NOPB is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.8V output at 3A current capacity in a TO-263 (DDPAK-5) surface mount package. This device is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support, production continuity, and system maintenance. Active alternatives with compatible electrical and mechanical specifications are available to ensure uninterrupted component availability.

Substiute Parts

LP3883ESX-1.8/NOPB

Texas InstrumentsIn Stock: 662LP3883ESX-1.8/NOPB Datasheet

Current PartRFQ

LP3962ES-1.8/NOPB

Texas InstrumentsIn Stock: 1249LP3962ES-1.8/NOPB Datasheet

MFR RecommendedRFQ

TPS75718KTTR

Texas InstrumentsIn Stock: 4523TPS75718KTTR Datasheet

MFR RecommendedRFQ

LP38513SX-1.8/NOPB

Texas InstrumentsIn Stock: 2694LP38513SX-1.8/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP3883ESX-1.8/NOPB are classified based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Fixed output voltage of 1.8V
• Surface mount packaging in TO-263 (DDPAK-5) configuration
• Operating temperature range of -40°C to 125°C
• RoHS3 compliance
• Protection features including Over Current, Over Temperature, and Short Circuit protection

Substitution Categories:

MFR Recommended Substitute: LP3962ES-1.8/NOPB meets the core voltage and package requirements but operates at reduced output current (1.5A versus 3A). This part is suitable for applications where the 3A capacity is not required.

MFR Recommended Substitute: TPS75718KTTR provides identical output current (3A) and voltage specifications with enhanced protection features including Power Good output and Reverse Polarity protection. This part is suitable for direct replacement in applications requiring full 3A capacity.

Parametric Equivalent: LP38513SX-1.8/NOPB delivers matching output voltage and current specifications (1.8V, 3A) with comparable dropout voltage performance (0.43V @ 3A). This part is suitable for applications requiring equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Full 3A Capacity Required):

TPS75718KTTR is the preferred active substitute when the application requires the full 3A output current specification. This part maintains identical voltage and current ratings while offering enhanced protection features including Power Good output and Reverse Polarity protection. The lower Moisture Sensitivity Level (MSL 2 versus MSL 3) provides extended shelf life and handling flexibility. All parts maintain ROHS3 compliance and identical operating temperature ranges.

LP38513SX-1.8/NOPB serves as an alternative parametric equivalent with matching 3A output current and comparable dropout voltage performance (0.43V @ 3A). This part is suitable for applications where the specific protection feature set of TPS75718KTTR is not required.

For Reduced Current Applications (1.5A Sufficient):

LP3962ES-1.8/NOPB is suitable for applications where output current requirements do not exceed 1.5A. This part accepts higher input voltage (7V maximum versus 5.5V) and maintains all core compliance certifications. The reduced quiescent current (9 mA) may provide advantages in low-power standby scenarios.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and identical ECCN and HTSUS classifications as the original LP3883ESX-1.8/NOPB, ensuring regulatory continuity for existing designs and supply chains.

Frequently Asked Questions (FAQ)

Q: Can LP3962ES-1.8/NOPB replace LP3883ESX-1.8/NOPB in all applications?

A: LP3962ES-1.8/NOPB is suitable only for applications where output current does not exceed 1.5A. The original part specifies 3A output current. For applications requiring the full 3A capacity, use TPS75718KTTR or LP38513SX-1.8/NOPB.

Q: What is the primary difference between TPS75718KTTR and LP38513SX-1.8/NOPB?

A: Both parts provide 1.8V fixed output at 3A with identical package and operating temperature specifications. TPS75718KTTR includes additional protection features (Power Good output, Reverse Polarity protection, Under Voltage Lockout) and offers improved moisture sensitivity (MSL 2 versus MSL 3). LP38513SX-1.8/NOPB provides comparable dropout voltage performance with a simpler feature set.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the TO-263-6 D2PAK (5 Leads + Tab) surface mount package, ensuring mechanical compatibility with existing PCB layouts and assembly processes.

Q: Do substitute parts maintain the same compliance certifications?

A: Yes. All substitute parts are ROHS3 compliant, REACH Unaffected, and share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications as the original LP3883ESX-1.8/NOPB.

Q: What is the impact of different quiescent current values?

A: Quiescent current differences (30 µA for LP3883ESX-1.8/NOPB versus 9-200 µA for substitutes) affect standby power consumption. Lower quiescent current reduces idle power draw. For applications with continuous full-load operation, this difference has minimal impact on overall system efficiency.

Q: Can I use TPS75718KTTR if my design does not require Power Good output?

A: Yes. TPS75718KTTR is fully compatible with designs that do not utilize the Power Good output. The additional protection features do not interfere with standard regulator operation and provide enhanced system reliability.