TPS62204DBVR Equivalent & Substitute Parts

Part Overview

The TPS62204DBVR is an active buck switching regulator IC manufactured by Texas Instruments, designed for step-down voltage conversion with a fixed 1.6V output. This device delivers 300mA maximum output current and operates across an input voltage range of 2.5V to 6V, making it suitable for low-power applications requiring regulated 1.6V rails. The part is housed in a compact SC-74A (SOT-753) surface mount package and features synchronous rectification for improved efficiency. With active product status and ROHS3 compliance, substitute parts may be required due to inventory constraints, application-specific current requirements, or thermal performance needs.

Substiute Parts

TPS62204DBVR

Texas InstrumentsIn Stock: 6422TPS62204DBVR Datasheet

Current PartRFQ

LM3670MF-1.6/NOPB

National SemiconductorIn Stock: 2915LM3670MF-1.6/NOPB Datasheet

MFR RecommendedRFQ

MCP1603T-180I/OS

Microchip TechnologyIn Stock: 15651MCP1603T-180I/OS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TPS62204DBVR is determined by the following criteria:

Primary Compatibility Requirements:

• Topology: Buck (step-down) switching regulator
• Output Configuration: Positive fixed voltage
• Package Type: SOT-23-5 or equivalent surface mount package
• Synchronous Rectifier: Present
• Output Voltage: 1.6V (primary) or 1.8V (acceptable with design verification)
• Minimum Output Current Rating: ≥300mA
• Input Voltage Range: Minimum 2.5V, Maximum ≥5.5V
• Operating Temperature Range: -40°C minimum, 85°C or higher maximum

Acceptable Variations:

• Output current may exceed 300mA (provides design margin)
• Switching frequency may differ (1MHz to 2MHz acceptable)
• Maximum operating temperature may exceed 85°C
• Output voltage tolerance of ±0.2V for 1.6V/1.8V variants

Parameter Comparison

Engineering Selection Recommendations

LM3670MF-1.6/NOPB (National Semiconductor)

This substitute maintains identical output voltage (1.6V), switching frequency (1MHz), and operating temperature range (-40°C to 85°C) as the TPS62204DBVR. The LM3670MF-1.6/NOPB provides 350mA output current, exceeding the primary part's 300mA specification. Input voltage range is 2.5V to 5.5V, which is compatible with applications not requiring the full 6V maximum input of the TPS62204DBVR. Both devices use the same SC-74A package footprint. This substitute is recommended for direct replacement in applications where the reduced maximum input voltage (5.5V vs. 6V) does not conflict with system requirements.

MCP1603T-180I/OS (Microchip Technology)

This substitute differs in output voltage (1.8V vs. 1.6V) and switching frequency (2MHz vs. 1MHz), but provides significantly higher output current capability (500mA vs. 300mA) and extended operating temperature range (-40°C to 125°C). The MCP1603T-180I/OS is housed in a TSOT-23-5 package, which is physically compatible with SOT-23-5 footprints. Input voltage range is 2.7V to 5.5V. This substitute is suitable for applications where the 0.2V output voltage increase is acceptable and higher current capacity or thermal performance is beneficial. Design verification is required to confirm voltage tolerance compatibility.

Both substitute parts maintain active product status and synchronous rectification topology. All three devices are ROHS3 compliant and carry identical ECCN and HTSUS classifications.

Frequently Asked Questions (FAQ)

Q: Can the LM3670MF-1.6/NOPB be used as a direct drop-in replacement for the TPS62204DBVR?

A: Yes, for applications operating within the LM3670MF-1.6/NOPB input voltage range of 2.5V to 5.5V. Both devices share identical output voltage (1.6V), switching frequency (1MHz), temperature range (-40°C to 85°C), and SC-74A package. The LM3670MF-1.6/NOPB's 350mA output current exceeds the TPS62204DBVR's 300mA specification, providing additional design margin.

Q: What is the key difference between the MCP1603T-180I/OS and the TPS62204DBVR?

A: The primary difference is output voltage: MCP1603T-180I/OS provides 1.8V versus TPS62204DBVR's 1.6V. The MCP1603T-180I/OS also operates at 2MHz switching frequency (vs. 1MHz) and supports 500mA output current (vs. 300mA). Operating temperature range extends to 125°C. The 0.2V voltage difference requires circuit validation before substitution.

Q: Are all three parts compatible with the same PCB footprint?

A: The TPS62204DBVR and LM3670MF-1.6/NOPB use identical SC-74A (SOT-753) packages and share the same footprint. The MCP1603T-180I/OS uses TSOT-23-5 (thin SOT-23-5), which is physically compatible with standard SOT-23-5 footprints but may have different height specifications. Verify PCB clearance requirements for the MCP1603T-180I/OS if space constraints exist.

Q: What is the minimum input voltage requirement for each part?

A: TPS62204DBVR and LM3670MF-1.6/NOPB both require minimum 2.5V input. MCP1603T-180I/OS requires minimum 2.7V input. Applications with input voltages between 2.5V and 2.7V must use either the TPS62204DBVR or LM3670MF-1.6/NOPB.

Q: Can the MCP1603T-180I/OS be used in applications requiring 1.6V output?

A: The MCP1603T-180I/OS provides fixed 1.8V output. Substitution requires design verification to confirm that the 0.2V increase is acceptable for the application. External voltage dividers or post-regulation may be necessary if strict 1.6V output is required.

Q: Which substitute offers the best thermal performance?

A: The MCP1603T-180I/OS supports operating temperatures up to 125°C (versus 85°C for both TPS62204DBVR and LM3670MF-1.6/NOPB), providing superior thermal margin in high-temperature environments.