TPS62002DGS Equivalent & Substitute Parts

Part Overview

The TPS62002DGS is a buck switching regulator IC from Texas Instruments designed for positive fixed 1V output applications with 600mA current capacity. This device operates across a 2V to 5.5V input range and features a 750kHz switching frequency with integrated synchronous rectification. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

TPS62002DGS

Texas InstrumentsIn Stock: 1365TPS62002DGS Datasheet

Current PartRFQ

TPS628510DRLR

Texas InstrumentsIn Stock: 3120TPS628510DRLR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS62002DGS is based on the following critical parameters:

Topology & Function: Both the main part and substitute must operate as buck (step-down) switching regulators with positive output configuration and integrated synchronous rectification.

Output Characteristics: The substitute must support the required output voltage and current specifications. The TPS62002DGS delivers fixed 1V at 600mA; substitutes must accommodate this or provide adjustable output capability that includes this voltage range with equal or greater current capacity.

Input Voltage Compatibility: The substitute must accept the same or overlapping input voltage range (2V to 5.5V minimum).

Electrical Performance: Switching frequency, efficiency, and thermal characteristics must remain within acceptable operating parameters for the target application.

Package & Mounting: Surface mount technology is required; package footprint compatibility must be verified during design integration.

Compliance & Availability: Product status and RoHS compliance determine long-term viability for production and procurement.

Parameter Comparison

Engineering Selection Recommendations

The TPS628510DRLR serves as a functional substitute for the obsolete TPS62002DGS based on the following engineering criteria:

Topology Compatibility: Both devices employ buck switching regulator topology with integrated synchronous rectification, ensuring equivalent power conversion efficiency and control characteristics.

Output Voltage Coverage: The TPS628510DRLR provides adjustable output from 0.6V to 5.5V, which encompasses the fixed 1V output requirement of the TPS62002DGS. External resistor dividers can be configured to establish the required 1V output voltage.

Input Voltage Range: The TPS628510DRLR accepts 2.7V to 6V input, overlapping the TPS62002DGS range of 2V to 5.5V. Applications operating above 2.7V input will experience full compatibility.

Current Capacity: The TPS628510DRLR delivers 500mA output current, which is 100mA lower than the TPS62002DGS 600mA rating. Design verification is required to confirm this reduction does not exceed application current requirements.

Product Status & Availability: The TPS628510DRLR is active production status with 3031 units in stock, providing long-term procurement security compared to the obsolete TPS62002DGS.

Temperature Performance: The TPS628510DRLR operates to 150°C junction temperature, exceeding the TPS62002DGS ambient specification of 85°C, offering improved thermal margin.

Package Consideration: The TPS628510DRLR uses SOT-583 packaging, which differs from the 10-TFSOP/10-MSOP footprint of the TPS62002DGS. PCB layout redesign is required.

Frequently Asked Questions (FAQ)

Q: Can the TPS628510DRLR directly replace the TPS62002DGS without circuit modifications?

A: No. While both devices function as buck regulators with synchronous rectification, the TPS628510DRLR requires external resistor configuration to set output voltage to 1V, whereas the TPS62002DGS provides fixed 1V output. Additionally, the package footprint differs (SOT-583 vs. 10-TFSOP/10-MSOP), necessitating PCB redesign.

Q: What is the impact of the 100mA current reduction from 600mA to 500mA?

A: Applications drawing more than 500mA at the output will exceed the TPS628510DRLR capability. Design verification must confirm that peak and continuous load currents remain at or below 500mA. If higher current is required, alternative substitutes must be evaluated.

Q: How does the higher switching frequency of the TPS628510DRLR affect circuit design?

A: The TPS628510DRLR operates at 2.25MHz compared to the TPS62002DGS 750kHz. Higher switching frequency typically reduces output filter component size but may increase EMI considerations. Input and output filter designs must be recalculated for the new frequency.

Q: Is the TPS628510DRLR suitable for applications requiring the full 2V to 5.5V input range of the TPS62002DGS?

A: The TPS628510DRLR minimum input is 2.7V. Applications requiring operation below 2.7V input voltage cannot use this substitute. For such applications, alternative parts with lower input voltage minimums must be identified.

Q: What compliance differences exist between these parts?

A: The TPS62002DGS is ROHS3 compliant. The TPS628510DRLR RoHS status is listed as not applicable. Compliance verification against specific procurement requirements is necessary before design release.