LP8720TLX-B/NOPB Equivalent & Substitute Parts

Part Overview

The LP8720TLX-B/NOPB is a PMIC (Power Management Integrated Circuit) from Texas Instruments that integrates one synchronous step-down (buck) DC/DC converter and five linear low-dropout (LDO) regulators in a single 20-pin package. This six-output voltage regulator is designed for applications requiring multiple supply rails with different voltage and current specifications.

The LP8720TLX-B/NOPB is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain flexibility, and support long-term product availability for legacy systems or new designs requiring this topology.

Substiute Parts

LP8720TLX-B/NOPB

Texas InstrumentsIn Stock: 7912LP8720TLX-B/NOPB Datasheet

Current PartRFQ

LP8720TLE/NOPB

National SemiconductorIn Stock: 1460LP8720TLE/NOPB Datasheet

Parametric EquivalentRFQ

LP8720TLX/NOPB

Texas InstrumentsIn Stock: 95137LP8720TLX/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP8720TLX-B/NOPB are identified based on strict electrical and mechanical parameter matching:

Critical Parameters for Substitution:

• Topology: Step-Down (Buck) Synchronous (1), Linear (LDO) (5)
• Number of Outputs: 6
• Switching Frequency: 2MHz
• Output voltage and current specifications (all three outputs)
• Supply voltage range: 2.7V ~ 4.5V
• Operating temperature range: -40°C ~ 85°C
• Package: 20-DSBGA
• Sequencer: Yes

All identified substitutes match these parameters exactly. Differences exist only in product status, packaging format (bulk vs. tape & reel), manufacturer designation, and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

LP8720TLE/NOPB (National Semiconductor)

This part is a parametric equivalent with active product status. It matches all electrical and mechanical specifications of the LP8720TLX-B/NOPB. Selection of this part is appropriate for applications where National Semiconductor sourcing is preferred or where bulk packaging is required. Compliance documentation (RoHS, REACH, MSL) is not specified for this variant.

LP8720TLX/NOPB (Texas Instruments)

This part is a parametric equivalent from the original manufacturer with active product status. It differs from the LP8720TLX-B/NOPB only in packaging format (Tape & Reel vs. Bulk) and maintains identical electrical specifications. This part carries ROHS3 compliance, MSL Level 1, and REACH Unaffected status. Selection of this part is appropriate for high-volume production requiring tape & reel packaging and is recommended for new designs requiring documented compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can LP8720TLE/NOPB and LP8720TLX/NOPB be used interchangeably with LP8720TLX-B/NOPB?

A: Yes, both parts are parametric equivalents. All three parts share identical electrical specifications, output configurations, switching frequency, supply voltage range, operating temperature range, and package type (20-DSBGA). The primary differences are manufacturer designation, product status, and packaging format (bulk vs. tape & reel).

Q: What is the difference between bulk and tape & reel packaging?

A: Bulk packaging is used for lower-volume applications and manual handling. Tape & reel packaging is used for automated assembly processes and high-volume production. The component itself is identical; only the delivery format differs.

Q: Why is the LP8720TLX-B/NOPB marked as obsolete?

A: Obsolete status indicates the part is no longer in active production. The LP8720TLE/NOPB and LP8720TLX/NOPB are active alternatives that provide identical functionality and are recommended for new designs or replacement inventory.

Q: Are there compliance differences between the three parts?

A: The LP8720TLX/NOPB explicitly lists ROHS3 compliance, MSL Level 1, and REACH Unaffected status. The LP8720TLE/NOPB does not specify these certifications. For applications requiring documented compliance, LP8720TLX/NOPB is the recommended choice.

Q: Can I use LP8720TLX/NOPB in place of LP8720TLX-B/NOPB in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only consideration is packaging format: if your assembly process uses tape & reel equipment, LP8720TLX/NOPB is suitable. If your process uses bulk components, LP8720TLE/NOPB is suitable.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by: topology (buck + five LDOs), number of outputs (6), switching frequency (2MHz), output voltage and current specifications, supply voltage range (2.7V ~ 4.5V), operating temperature range (-40°C ~ 85°C), package type (20-DSBGA), and sequencer support. All three parts match these parameters exactly.