LP5900TLX-4.5/NOPB Equivalent & Substitute Parts

Part Overview

The LP5900TLX-4.5/NOPB is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 150mA output current with a 4.5V fixed output voltage in a compact 4-DSBGA package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

LP5900TLX-4.5/NOPB

Texas InstrumentsIn Stock: 5928LP5900TLX-4.5/NOPB Datasheet

Current PartRFQ

LP5907UVE-4.5/NOPB

Texas InstrumentsIn Stock: 2314LP5907UVE-4.5/NOPB Datasheet

MFR RecommendedRFQ

LP5900TL-4.5/NOPB

Texas InstrumentsIn Stock: 1745LP5900TL-4.5/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP5900TLX-4.5/NOPB is determined by the following critical parameters:

• Output voltage specification (4.5V fixed)
• Package type (4-DSBGA)
• Input voltage rating (5.5V maximum)
• Operating temperature range (-40°C ~ 85°C)
• Regulatory compliance (ROHS3, REACH Unaffected)

Two substitute parts meet these criteria:

1. LP5907UVE-4.5/NOPB (MFR Recommended): Active product with higher output current capability (250mA vs 150mA)
2. LP5900TL-4.5/NOPB (Parametric Equivalent): Active product with identical electrical specifications and package

Parameter Comparison

Engineering Selection Recommendations

LP5900TL-4.5/NOPB is the direct parametric equivalent for applications requiring identical electrical performance. This part maintains the same 150mA output current, 0.15V dropout voltage, and 50 µA quiescent current as the obsolete LP5900TLX-4.5/NOPB. Both parts are ROHS3 compliant and operate across the same temperature range. The LP5900TL-4.5/NOPB is currently in active production status with available inventory.

LP5907UVE-4.5/NOPB is the manufacturer-recommended substitute for applications where higher output current capacity is acceptable or beneficial. This part provides 250mA output current compared to 150mA, with improved quiescent current performance (25 µA vs 50 µA). The trade-off is a slightly higher dropout voltage (0.2V @ 250mA vs 0.15V @ 150mA). This part is also ROHS3 compliant and actively produced.

Both substitutes maintain the 4.5V fixed output voltage, 5.5V maximum input voltage, and 4-DSBGA package compatibility required for direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can LP5907UVE-4.5/NOPB directly replace LP5900TLX-4.5/NOPB in all applications?

A: The LP5907UVE-4.5/NOPB is pin-compatible and maintains the same output voltage and package type. However, the higher output current rating (250mA vs 150mA) and lower quiescent current (25 µA vs 50 µA) make it suitable for most applications. The increased dropout voltage (0.2V @ 250mA) must be evaluated in power-sensitive designs.

Q: What is the difference between LP5900TL-4.5/NOPB and LP5900TLX-4.5/NOPB?

A: Both parts have identical electrical specifications and package type (4-DSBGA). The primary difference is product status: LP5900TLX-4.5/NOPB is obsolete, while LP5900TL-4.5/NOPB is actively produced. The packaging format differs (bulk vs Tape & Reel).

Q: Are all three parts ROHS3 compliant?

A: Yes. LP5900TLX-4.5/NOPB, LP5907UVE-4.5/NOPB, and LP5900TL-4.5/NOPB are all ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which substitute should I select for new designs?

A: For new designs requiring 150mA output current, select LP5900TL-4.5/NOPB as the direct equivalent. For designs that can utilize higher current capability or benefit from lower quiescent current, LP5907UVE-4.5/NOPB is the manufacturer-recommended option.

Q: Are the package dimensions identical between all three parts?

A: All three parts use the 4-DSBGA package type. Verify specific footprint requirements with the respective Texas Instruments datasheets, as package case designations may vary (4-WFBGA vs 4-XFBGA).