TPS64203DBVRG4 Equivalent & Substitute Parts

Part Overview

The TPS64203DBVRG4 is a buck regulator controller IC from Texas Instruments designed for step-down DC-DC conversion with positive or negative output configuration. This device operates as a transistor driver with a single output phase and supports a maximum duty cycle of 100%. The part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Function	Step-Down Buck Regulator Controller
Output Type	Transistor Driver
Output Configuration	Positive or Negative
Number of Outputs	1
Output Phases	1
Voltage Supply Range (Vcc/Vdd)	1.8V ~ 6.5V
Duty Cycle (Max)	100%
Synchronous Rectifier	No
Control Features	Enable
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	SOT-23-6
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TPS64203DBVRG4 is determined by strict equivalence across the following critical parameters:

Topology: Buck regulator controller
Output configuration: Positive or Negative
Package: SOT-23-6 surface mount
Supply voltage range: 1.8V ~ 6.5V
Duty cycle capability: 100% maximum
Control interface: Enable feature
Operating temperature range: -40°C ~ 85°C
Compliance: ROHS3, MSL 1, REACH Unaffected

All substitute parts listed maintain identical electrical and mechanical specifications across these parameters. Substitution is valid based on parametric equivalence within the TPS642xx controller family from Texas Instruments.

Parameter Comparison

Part Number	Manufacturer	Product Status	Package	Vcc/Vdd Range	Duty Cycle Max	Operating Temp	RoHS Status	Inventory (Pcs)
TPS64203DBVRG4	Texas Instruments	Discontinued	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	12,300
TPS64200DBVR	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	2,405
TPS64200DBVT	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	2,200
TPS64201DBVR	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	36,100
TPS64201DBVT	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	2,130
TPS64202DBVR	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	9,700
TPS64202DBVT	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	1,972
TPS64203DBVR	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	13,180
TPS64203DBVT	Texas Instruments	Active	SOT-23-6	1.8V ~ 6.5V	100%	-40°C ~ 85°C	ROHS3	2,148

Engineering Selection Recommendations

All listed substitute parts maintain full parametric equivalence to the TPS64203DBVRG4 across electrical and mechanical specifications. Selection among active alternatives should prioritize product status and availability:

TPS64203DBVR and TPS64201DBVR offer the highest inventory levels (13,180 and 36,100 units respectively) and active product status, making them primary candidates for immediate procurement. Both maintain identical compliance certifications (ROHS3, MSL 1, REACH Unaffected) and operational parameters.

Packaging suffix differences (DBVR vs. DBVT) indicate tape and reel configuration variations. DBVR denotes Cut Tape and Digi-Reel packaging, while DBVT denotes standard Tape & Reel packaging. Selection between these options depends on assembly process requirements and volume specifications.

All substitute parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can TPS64200, TPS64201, TPS64202, and TPS64203 variants be used interchangeably with the TPS64203DBVRG4?

A: Yes. All variants within the TPS642xx controller family maintain identical electrical specifications for supply voltage range (1.8V ~ 6.5V), duty cycle capability (100%), output configuration (positive or negative), package format (SOT-23-6), and operating temperature range (-40°C ~ 85°C). Substitution is valid based on parametric equivalence.

Q: What is the difference between DBVR and DBVT packaging suffixes?

A: DBVR indicates Cut Tape and Digi-Reel packaging configuration, while DBVT indicates standard Tape & Reel packaging. Both are surface mount SOT-23-6 packages with identical electrical performance. Selection depends on assembly equipment compatibility and procurement volume requirements.

Q: Is the discontinued TPS64203DBVRG4 still available for procurement?

A: The TPS64203DBVRG4 is discontinued at DiGi Electronics. However, 12,300 units remain in stock from existing inventory. Active alternatives such as TPS64203DBVR (13,180 units) and TPS64201DBVR (36,100 units) are recommended for new designs and ongoing procurement to ensure long-term supply continuity.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity) and REACH unaffected status, meeting standard environmental and regulatory requirements for industrial and commercial applications.

Q: Can I use these parts in applications requiring negative output configuration?

A: Yes. All substitute parts support positive or negative output configuration as specified in the output configuration parameter. The buck controller topology and enable control feature remain consistent across all variants, enabling flexible output polarity implementation.

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