LP873222RHDRQ1 Equivalent & Substitute Parts

Part Overview

The LP873222RHDRQ1 is a quad-output power management IC (PMIC) from Texas Instruments designed for automotive applications. This device integrates two step-down (buck) regulators and two linear (LDO) regulators operating at 2MHz switching frequency, housed in a 28-VQFN package with exposed pad. The part is actively produced and AEC-Q100 qualified for automotive-grade reliability. Substitute parts are identified when identical electrical specifications, package configuration, and compliance certifications are maintained across different manufacturing date codes or tape & reel configurations.

Substiute Parts

LP873222RHDRQ1

Texas InstrumentsIn Stock: 6151LP873222RHDRQ1 Datasheet

Current PartRFQ

LP873222RHDTQ1

Texas InstrumentsIn Stock: 1430LP873222RHDTQ1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The LP873222RHDTQ1 qualifies as a parametric equivalent to the LP873222RHDRQ1 based on the following substitution criteria:

Identical electrical specifications: Both parts maintain the same topology (2 buck + 2 LDO outputs), switching frequency (2MHz), output voltage ranges, current ratings, and supply voltage range.

Identical package and mechanical configuration: Both use the 28-VQFN (5x5) package with exposed pad and wettable flank surface mount design.

Matching compliance and grade: Both parts carry automotive-grade qualification (AEC-Q100), ROHS3 compliance, and identical MSL rating (2, 1 Year).

Manufacturing date code variation: The difference between RHDRQ1 and RHDTQ1 represents different manufacturing date codes or tape & reel lot designations from Texas Instruments, with no functional or electrical differentiation.

Parameter Comparison

Engineering Selection Recommendations

Both the LP873222RHDRQ1 and LP873222RHDTQ1 are active production parts from Texas Instruments with full AEC-Q100 automotive qualification. Selection between these parts should be based on availability and procurement lead time, as they are functionally and electrically identical. Both parts meet ROHS3 compliance requirements and carry identical MSL ratings suitable for standard reflow soldering processes. The 28-VQFN package with exposed pad and wettable flank design ensures reliable solder joint formation in automotive manufacturing environments. No design changes or PCB modifications are required when substituting between these part numbers.

Frequently Asked Questions (FAQ)

Q: Can LP873222RHDTQ1 be used as a direct replacement for LP873222RHDRQ1?

A: Yes. Both parts are electrically and mechanically identical with matching output specifications, package configuration, and automotive qualifications. The difference in part number suffix reflects manufacturing date code variation only.

Q: Are there any PCB layout or schematic changes required when switching between these parts?

A: No. The identical package (28-VQFN with exposed pad), pin configuration, and electrical specifications require no design modifications.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both LP873222RHDRQ1 and LP873222RHDTQ1 carry AEC-Q100 qualification and are automotive-grade components suitable for vehicle applications.

Q: What is the significance of the different part number suffixes (RHDRQ1 vs. RHDTQ1)?

A: The suffix variation indicates different manufacturing date codes or tape & reel lot designations from Texas Instruments. No functional differences exist between these designations.

Q: Are soldering and handling procedures identical for both parts?

A: Yes. Both parts share the same MSL rating (2, 1 Year), package type (28-VQFN with wettable flank), and mounting specifications, requiring identical assembly procedures.

Q: What is the inventory status of these parts?

A: LP873222RHDRQ1 has 6100 pieces in stock. LP873222RHDTQ1 has 1332 pieces in stock. Both are listed as active production parts.