LP5520TL/NOPB Equivalent & Substitute Parts

Part Overview

The LP5520TL/NOPB is an active LED driver IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This device functions as a 3-output DC-DC regulator with step-up (boost) topology, delivering PWM-based dimming control for LED backlight applications. The part is currently in active production status with 6,350 units available in inventory. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in circuit designs without functional compromise.

Substiute Parts

LP5520TL/NOPB

Texas InstrumentsIn Stock: 6432LP5520TL/NOPB Datasheet

Current PartRFQ

LP5520TLX/NOPB

Texas InstrumentsIn Stock: 968LP5520TLX/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP5520TL/NOPB are identified based on strict parametric equivalence across the following critical criteria:

Electrical Parameters (Must Match Exactly):

• DC-DC regulator topology: Step-Up (Boost)
• Number of outputs: 3
• Supply voltage range: 2.9V to 5.5V
• Output voltage range: 5V to 20V
• Output current per channel: 60mA
• Operating frequency: 1.22kHz, 19.52kHz
• Dimming method: PWM

Mechanical & Packaging Parameters (Must Match Exactly):

• Package type: 25-WFBGA
• Supplier device package: 25-uSMD
• Mounting type: Surface Mount

Compliance & Status Parameters:

• Product status: Active
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

Only parts meeting all these criteria are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The LP5520TLX/NOPB is a direct parametric equivalent to the LP5520TL/NOPB. Both parts are manufactured by Texas Instruments, maintain identical electrical specifications across all critical parameters, and share the same mechanical packaging. Both devices are active products with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), confirming suitability for production environments.

Selection between these parts should be based on inventory availability and supply chain requirements. The LP5520TL/NOPB maintains higher stock levels (6,350 units), while the LP5520TLX/NOPB offers an alternative source with 892 units available. Both parts are suitable for direct substitution in LED driver applications requiring 3-output boost regulation with PWM dimming control.

Frequently Asked Questions (FAQ)

Q: Can LP5520TLX/NOPB replace LP5520TL/NOPB in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical and mechanical specifications. No circuit modifications are required for substitution.

Q: Are there differences in the part numbers that affect compatibility?

A: The part numbers differ only in the suffix designation (TL vs. TLX). This suffix variation does not affect electrical performance, pin configuration, or package dimensions. Both parts use the 25-WFBGA package with 25-uSMD supplier designation.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by matching: DC-DC regulator topology (Step-Up Boost), number of outputs (3), supply voltage range (2.9V–5.5V), output voltage range (5V–20V), output current per channel (60mA), operating frequency (1.22kHz, 19.52kHz), PWM dimming control, package type (25-WFBGA), and operating temperature range (-30°C to 85°C).

Q: Do both parts meet the same compliance standards?

A: Yes. Both LP5520TL/NOPB and LP5520TLX/NOPB are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity), confirming equivalent environmental and regulatory compliance.

Q: Which part should be selected based on availability?

A: Selection should prioritize current inventory requirements. LP5520TL/NOPB has 6,350 units in stock, while LP5520TLX/NOPB has 892 units available. Both are active products suitable for immediate procurement.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts share identical operating temperature specifications (-30°C to 85°C) and electrical performance characteristics. Thermal behavior and performance are equivalent.