TPS62044DRCRG4 Equivalent & Substitute Parts

Part Overview

The TPS62044DRCRG4 is a buck switching regulator IC from Texas Instruments designed for positive fixed 1.8V output applications with 1.2A output current capability. This device operates across a 2.5V to 6V input voltage range and features a synchronous rectifier topology with 1.25MHz switching frequency. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

TPS62044DRCRG4

Texas InstrumentsIn Stock: 1090TPS62044DRCRG4 Datasheet

Current PartRFQ

ADP2120ACPZ-1.8-R7

Analog Devices Inc.In Stock: 2295ADP2120ACPZ-1.8-R7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS62044DRCRG4 is determined by the following critical parameters:

• Fixed output voltage of 1.8V
• Output current capability of 1.2A or greater
• Input voltage range compatibility (minimum 2.5V, maximum 6V)
• Buck topology with synchronous rectification
• Surface mount packaging in 10-pin VFDFN form factor
• Operating temperature range of -40°C to 85°C or wider
• ROHS3 compliance and REACH unaffected status

The ADP2120ACPZ-1.8-R7 from Analog Devices meets these substitution criteria with compatible electrical specifications and enhanced performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ADP2120ACPZ-1.8-R7 is a direct functional substitute for the obsolete TPS62044DRCRG4. Both devices are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for current production. The ADP2120ACPZ-1.8-R7 offers active product status with extended availability, higher output current capability (1.25A versus 1.2A), and an expanded operating temperature range (-40°C to 125°C versus -40°C to 85°C). The input voltage range of the ADP2120ACPZ-1.8-R7 extends to a lower minimum of 2.3V, providing additional design flexibility. Both devices share identical 10-VFDFN exposed pad packaging and fixed 1.8V output voltage, enabling direct PCB-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the ADP2120ACPZ-1.8-R7 replace the TPS62044DRCRG4 in existing designs?

A: Yes. Both devices feature identical 1.8V fixed output voltage, 10-VFDFN exposed pad packaging, and synchronous buck topology. The ADP2120ACPZ-1.8-R7 provides equal or superior electrical performance with higher output current (1.25A) and wider operating temperature range.

Q: What are the key differences between these two parts?

A: The primary differences are manufacturer (Texas Instruments versus Analog Devices), product status (obsolete versus active), output current rating (1.2A versus 1.25A), operating temperature range (-40°C to 85°C versus -40°C to 125°C), and input voltage minimum (2.5V versus 2.3V). All differences favor the substitute part.

Q: Are there any package compatibility concerns?

A: No. Both parts use the 10-VFDFN exposed pad package with identical footprint dimensions (3x3mm). PCB layout and component placement require no modification.

Q: Does the ADP2120ACPZ-1.8-R7 meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the significance of the different switching frequencies (1.25MHz versus 1.2MHz)?

A: The 50kHz difference is negligible for most applications. Both frequencies fall within the same operational band and produce comparable electromagnetic interference characteristics and component sizing requirements.

Q: Is the lower input voltage minimum of the ADP2120ACPZ-1.8-R7 (2.3V) a concern?

A: No. The lower minimum expands design flexibility. If your application requires a 2.5V minimum input, the ADP2120ACPZ-1.8-R7 remains fully compatible and functional.