UCD9224RGZR Equivalent & Substitute Parts

Part Overview

The UCD9224RGZR is a buck regulator controller IC from Texas Instruments designed for positive output step-down DC-DC conversion. This PMBus-compatible device operates as a PWM signal controller with dual output phases and supports I2C, PMBus, and SMBus serial interfaces. The component is actively produced and widely used in power management applications requiring programmable voltage regulation and system monitoring. Substitute parts are identified to address inventory availability, packaging preferences, or specific control feature requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

UCD9224RGZR

Texas InstrumentsIn Stock: 20223UCD9224RGZR Datasheet

Current PartRFQ

UCD9222RGZR

Texas InstrumentsIn Stock: 17021UCD9222RGZR Datasheet

Parametric EquivalentRFQ

UCD9222RGZT

Texas InstrumentsIn Stock: 1684UCD9222RGZT Datasheet

Parametric EquivalentRFQ

UCD9224RGZT

Texas InstrumentsIn Stock: 1314UCD9224RGZT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters: identical package type (48-VFQFN Exposed Pad), matching voltage supply range (3V ~ 3.6V), equivalent switching frequency capability (15.26kHz ~ 2MHz), dual output phases, PMBus/I2C/SMBus interface support, and identical operating temperature range (-40°C ~ 125°C). All substitute parts maintain the same base electrical topology (buck regulator controller with PWM output) and mechanical form factor.

The UCD9224RGZR and UCD9224RGZT differ only in packaging format (Tape & Reel vs. Cut Tape), making them direct substitutes. The UCD9222 series (UCD9222RGZR and UCD9222RGZT) are parametrically equivalent controllers with identical electrical specifications but represent a different base product number within the same controller family. Minor control feature variations exist: UCD9224 variants include Sequencing control, while UCD9222 variants omit this feature. This distinction does not affect core buck regulation functionality.

Parameter Comparison

Engineering Selection Recommendations

All four parts maintain active product status with ROHS3 compliance and identical moisture sensitivity ratings, ensuring long-term availability and environmental regulatory alignment. Selection between UCD9224 and UCD9222 base products depends on whether Sequencing control functionality is required in the application. The UCD9224 series includes this feature; the UCD9222 series does not. Selection between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging is driven by procurement and assembly workflow requirements rather than electrical performance. All parts are suitable for high-reliability applications within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can UCD9222RGZR be used as a direct replacement for UCD9224RGZR? A: UCD9222RGZR is electrically compatible with UCD9224RGZR for core buck regulation functions. The primary difference is the absence of Sequencing control in the UCD9222 variant. If Sequencing is not required by the application, substitution is valid.

Q: What is the difference between Tape & Reel and Cut Tape packaging? A: Tape & Reel (TR) packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® packaging provides the same components in smaller quantities on cut tape segments. Both formats contain identical die and electrical performance; the choice depends on production volume and assembly equipment compatibility.

Q: Are all substitute parts pin-compatible? A: Yes. All four parts use the 48-VFQFN Exposed Pad package with identical pinout and mechanical dimensions (7x7mm). PCB layout and footprint remain unchanged across all substitutes.

Q: Do all parts support PMBus communication? A: Yes. All four parts include I2C, PMBus, and SMBus serial interface support with identical protocol implementation.

Q: What inventory levels should be considered when selecting a substitute? A: Current inventory availability is UCD9224RGZR (20,200 pcs), UCD9222RGZR (16,961 pcs), UCD9222RGZT (1,668 pcs), and UCD9224RGZT (1,259 pcs). Inventory status may influence procurement decisions but does not affect technical compatibility.