TPS73632DBVT Equivalent & Substitute Parts

Part Overview

The TPS73632DBVT is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.2V output at 400mA in a SOT-23-5 surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The device provides integrated protection features including over-current, over-temperature, and reverse polarity protection, with an enable control feature for power management applications.

Substiute Parts

TPS73632DBVT

Texas InstrumentsIn Stock: 1189TPS73632DBVT Datasheet

Current PartRFQ

TLV75801PDBVR

Texas InstrumentsIn Stock: 52276TLV75801PDBVR Datasheet

MFR RecommendedRFQ

TPS73632DBVR

Texas InstrumentsIn Stock: 7952TPS73632DBVR Datasheet

Parametric EquivalentRFQ

MIC5265-3.2YD5-TR

Microchip TechnologyIn Stock: 986MIC5265-3.2YD5-TR Datasheet

MFR RecommendedRFQ

RT9020-32GB

Richtek USA Inc.In Stock: 822RT9020-32GB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TPS73632DBVT are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

• Output voltage: 3.2V fixed output
• Package type: SOT-23-5 surface mount
• Output current capability: minimum 400mA
• Input voltage range: maximum 5.5V
• Operating temperature range: -40°C ~ 125°C
• Protection features: over-current and over-temperature protection
• Control features: enable function

Grouping Logic:

• Parametric Equivalents: Parts with identical electrical specifications (fixed 3.2V output, 400mA capability, same package)
• MFR Recommended Substitutes: Parts with enhanced or alternative specifications that maintain functional compatibility within the same voltage and current envelope

Parameter Comparison

Engineering Selection Recommendations

TPS73632DBVR (Parametric Equivalent - Recommended Primary Choice)

The TPS73632DBVR is the direct parametric equivalent to the obsolete TPS73632DBVT. It maintains identical electrical specifications including fixed 3.2V output, 400mA current capability, 0.2V dropout voltage, and identical protection features. The part is in active production status with 7,896 units in stock. This part requires no design modifications and provides the most direct replacement path. Both parts are ROHS3 compliant with identical operating temperature ranges and package specifications.

MIC5265-3.2YD5-TR (MFR Recommended - Low Quiescent Current Alternative)

The MIC5265-3.2YD5-TR from Microchip Technology provides a 3.2V fixed output in SOT-23-5 package with significantly reduced quiescent current (2 µA versus 550 µA). This part is suitable for applications where the 400mA output current requirement can be met by the 150mA capability, or where lower standby power consumption is a design priority. The package is TSOT-23-5 (thin variant), which maintains mechanical compatibility with standard SOT-23-5 footprints. Protection features include over-temperature and UVLO, with active product status.

RT9020-32GB (MFR Recommended - Higher Current Capability)

The RT9020-32GB from Richtek USA Inc. provides 3.2V fixed output with 500mA current capability, exceeding the original 400mA specification. Dropout voltage is 0.4V at 500mA. This part includes soft-start control in addition to enable functionality. Operating temperature range is -40°C to 85°C, which is narrower than the original specification. This part is suitable for designs requiring higher current headroom or where the reduced temperature range is acceptable.

TLV75801PDBVR (MFR Recommended - Adjustable Output Alternative)

The TLV75801PDBVR is an adjustable output regulator capable of 0.55V to 5.5V output with 500mA capability. This part allows field configuration of the 3.2V output voltage through external resistor divider networks. Input voltage maximum is 6V. Quiescent current is 35 µA. This part is suitable for designs requiring output voltage flexibility or where the 3.2V fixed output can be configured through external components. Active product status with 52,200 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I use TPS73632DBVR as a direct replacement for TPS73632DBVT?

A: Yes. The TPS73632DBVR is a parametric equivalent with identical electrical specifications, package type, and protection features. No design modifications are required. The primary difference is product status: the original part is obsolete while the DBVR variant is in active production.

Q: What is the difference between the Tape & Reel (TR) and Cut Tape (CT) packaging options?

A: Tape & Reel packaging is supplied on continuous tape reels suitable for high-volume automated assembly. Cut Tape and Digi-Reel packaging are supplied in smaller quantities on cut tape segments. Both formats contain the same component; the difference is in supply format and minimum order quantities.

Q: Can I use MIC5265-3.2YD5-TR if my application requires 400mA output current?

A: No. The MIC5265-3.2YD5-TR is rated for maximum 150mA output current. Using this part in an application requiring 400mA will result in thermal shutdown and circuit malfunction. This part is suitable only for applications where output current requirements do not exceed 150mA.

Q: What is the advantage of the RT9020-32GB over the TPS73632DBVR?

A: The RT9020-32GB provides higher output current capability (500mA versus 400mA) and lower quiescent current (50 µA versus 550 µA). However, the operating temperature range is narrower (-40°C to 85°C versus -40°C to 125°C). Select this part if higher current capability is required and the reduced temperature range is acceptable for your application.

Q: Can I use the TLV75801PDBVR as a direct replacement without circuit modifications?

A: The TLV75801PDBVR can be used as a functional replacement but requires external resistor divider components to set the output voltage to 3.2V. This part is not a direct pin-for-pin replacement without additional circuitry. Use this part only if your design can accommodate external voltage-setting resistors or if output voltage adjustability is a design requirement.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (TPS73632DBVR, MIC5265-3.2YD5-TR, RT9020-32GB, and TLV75801PDBVR) are ROHS3 compliant with moisture sensitivity level 1 (unlimited) or level 3 (168 hours), as specified in their individual datasheets.

Q: What is the difference between fixed and adjustable output regulators?

A: Fixed output regulators (TPS73632DBVT, TPS73632DBVR, MIC5265-3.2YD5-TR, RT9020-32GB) provide a preset output voltage determined at manufacturing. Adjustable output regulators (TLV75801PDBVR) allow the output voltage to be set using external resistor networks, providing design flexibility for multiple voltage requirements from a single part number.

Q: Which substitute part has the lowest quiescent current?

A: The MIC5265-3.2YD5-TR has the lowest quiescent current at 2 µA, compared to 550 µA for the original TPS73632DBVT and 50 µA for the RT9020-32GB. This makes the MIC5265 suitable for battery-powered or low-power standby applications where quiescent current is a critical design parameter.