XRP7724ILB-F Equivalent & Substitute Parts

Part Overview

The XRP7724ILB-F is a Power Management IC (PMIC) manufactured by MaxLinear, Inc., designed as a voltage regulator with 6 outputs combining Step-Down (Buck) topology (4 outputs) and Linear (LDO) topology (2 outputs). The device operates across a supply voltage range of 4.75V to 25V with switching frequencies between 105kHz and 1.23MHz, housed in a 44-TQFN (7x7) package with exposed pad.

The XRP7724ILB-F is currently classified as Obsolete. Locating equivalent or substitute components becomes necessary when original inventory is depleted or when design flexibility is required for new production runs. The XRP7714ILBTR-F serves as the manufacturer-recommended substitute, offering comparable functionality with architectural differences suited to modern applications.

Substiute Parts

XRP7724ILB-F

MaxLinear, Inc.In Stock: 2663XRP7724ILB-F Datasheet

Current PartRFQ

XRP7714ILBTR-F

MaxLinear, Inc.In Stock: 5165XRP7714ILBTR-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The XRP7714ILBTR-F qualifies as a manufacturer-recommended substitute based on the following alignment of critical electrical and mechanical parameters:

Common Parameters Supporting Substitution:

• Identical manufacturer (MaxLinear, Inc.)
• Identical supply voltage range (4.75V ~ 25V)
• Identical operating temperature range (-40°C ~ 125°C)
• Identical sequencer functionality (Yes)
• Identical RoHS compliance status
• Identical MSL rating (3, 168 Hours)
• Both devices use TQFN packages with exposed pads (surface mount)
• Both belong to the same product category (Power Management PMIC)

Architectural Differences: The XRP7714ILBTR-F reduces output count from 6 to 5 and modifies topology from 4 Buck + 2 LDO to 4 Synchronous Buck + 1 LDO. The switching frequency increases to a fixed 1.5MHz. These differences require circuit-level evaluation but do not preclude substitution when output requirements align with the reduced configuration.

Parameter Comparison

Engineering Selection Recommendations

The XRP7714ILBTR-F is the manufacturer-recommended substitute for the obsolete XRP7724ILB-F. Selection of this substitute is appropriate when the following conditions are met:

Electrical Compatibility: Both devices operate within identical supply voltage ranges (4.75V ~ 25V) and temperature ranges (-40°C ~ 125°C). Both maintain sequencer functionality and RoHS compliance. The substitute's fixed 1.5MHz switching frequency falls within the original device's frequency range, ensuring compatibility with existing filter and compensation networks designed for the upper frequency range.

Output Configuration: The reduction from 6 to 5 outputs requires verification that the design requires no more than 5 regulated outputs. The shift from 2 LDO outputs to 1 LDO output must be evaluated against load requirements. The addition of synchronous buck topology in the substitute improves efficiency compared to the original asynchronous buck stages.

Package and PCB Considerations: The XRP7714ILBTR-F uses a 40-TQFN (6x6) package versus the original 44-TQFN (7x7). This requires PCB layout redesign, including new footprint implementation and signal routing. The smaller package may offer space advantages in constrained designs.

Production Status: The substitute is in active production with 5093 pieces in stock, ensuring long-term availability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the XRP7714ILBTR-F directly replace the XRP7724ILB-F without PCB modifications?

A: No. The XRP7714ILBTR-F uses a different package (40-TQFN 6x6 versus 44-TQFN 7x7), requiring new PCB footprint design and layout. Pin assignments differ between the two devices and must be verified against the respective datasheets before implementation.

Q: What is the impact of the reduced output count (6 to 5)?

A: The design must operate with one fewer regulated output. If the original design utilized all 6 outputs, the substitute cannot be used without circuit redesign to consolidate loads onto the remaining 5 outputs.

Q: How does the fixed 1.5MHz switching frequency in the XRP7714ILBTR-F compare to the variable frequency range of the XRP7724ILB-F?

A: The XRP7724ILB-F operates between 105kHz and 1.23MHz, while the XRP7714ILBTR-F operates at a fixed 1.5MHz. The substitute's frequency is slightly higher but remains compatible with filter designs optimized for the upper end of the original frequency range. Applications requiring lower switching frequencies may experience increased EMI or different thermal characteristics.

Q: Are there differences in LDO output count between these devices?

A: Yes. The XRP7724ILB-F provides 2 LDO outputs, while the XRP7714ILBTR-F provides 1 LDO output. Designs requiring 2 independent LDO channels cannot use the substitute without external LDO components.

Q: What are the storage and handling requirements for both devices?

A: Both devices carry MSL rating 3 (168 Hours), indicating identical moisture sensitivity. Standard ESD precautions and dry storage conditions apply to both parts.

Q: Is the XRP7714ILBTR-F suitable for new designs, or only as a replacement for obsolete inventory?

A: The XRP7714ILBTR-F is in active production status and is suitable for both new designs and obsolescence mitigation. Its active status ensures continued availability and support from the manufacturer.