LP5952LC-1.2 Equivalent & Substitute Parts

Part Overview

The LP5952LC-1.2 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 1.2V output applications with 350mA current capacity in a 6-USON (2x2) surface mount package. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The part provides integrated protection features including over-current, over-temperature, short-circuit, and under-voltage lockout (UVLO) protection, with an enable control feature for power management applications.

Substiute Parts

LP5952LC-1.2

Texas InstrumentsIn Stock: 1029LP5952LC-1.2 Datasheet

Current PartRFQ

LP5952LC-1.2/NOPB

Texas InstrumentsIn Stock: 3169LP5952LC-1.2/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP5952LC-1.2 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 1.2V
• Output current rating of 350mA minimum
• Maximum input voltage of 4.5V or greater
• Voltage dropout specification of 0.25V @ 350mA or lower
• Identical package type: 6-UFDFN (6-USON 2x2)
• Presence of enable control feature
• Inclusion of over-current, over-temperature, short-circuit, and UVLO protection

The LP5952LC-1.2/NOPB qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications. The primary distinction between these parts is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The LP5952LC-1.2/NOPB is the direct functional equivalent of the obsolete LP5952LC-1.2. Both parts share identical electrical specifications and package geometry. Selection between these parts is determined by regulatory and supply chain requirements:

The LP5952LC-1.2/NOPB is recommended for new designs and ongoing production due to its active product status and ROHS3 compliance. This part is supplied in Tape & Reel format, suitable for automated assembly processes. The /NOPB designation indicates lead-free plating, aligning with modern manufacturing standards.

The LP5952LC-1.2 remains functionally interchangeable at the circuit level but carries obsolete status and RoHS non-compliance designation. This part is available in bulk packaging format.

Frequently Asked Questions (FAQ)

Q: Can LP5952LC-1.2/NOPB be used as a direct replacement for LP5952LC-1.2?

A: Yes. Both parts are electrically and mechanically identical. The LP5952LC-1.2/NOPB is the active production equivalent with ROHS3 compliance and Tape & Reel packaging.

Q: What does the /NOPB suffix indicate?

A: The /NOPB designation specifies lead-free plating on the device leads, indicating compliance with lead-free manufacturing standards.

Q: Are there any package compatibility considerations?

A: Both parts use the 6-UFDFN package (6-USON 2x2). No PCB layout modifications are required when substituting between these parts.

Q: What is the difference between bulk and Tape & Reel packaging?

A: Bulk packaging is suitable for manual assembly or small-volume applications. Tape & Reel format is designed for automated pick-and-place assembly in production environments.

Q: Does RoHS compliance affect circuit performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical performance. Both parts deliver identical functional characteristics.

Q: What protection features are included in this regulator?

A: The LP5952LC-1.2 and LP5952LC-1.2/NOPB include over-current protection, over-temperature protection, short-circuit protection, and under-voltage lockout (UVLO).