TCR3DM11,RF(SE Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The TCR3DM11,RF(SE is a linear voltage regulator IC manufactured by Toshiba Semiconductor and Storage, classified as a Power Management (PMIC) component. This device functions as a positive fixed output LDO (Low Dropout) regulator with a single output configuration, delivering 300mA output current at a fixed 1.1V output voltage. The part is currently in Active product status and is supplied in Tape & Reel packaging.

Identification of equivalent and substitute parts becomes necessary when the primary part number is unavailable, when alternative packaging variants are required, or when sourcing from multiple manufacturers is required for supply chain continuity. This reference provides parametrically equivalent alternatives that maintain functional compatibility within the specified electrical and mechanical constraints.

Substiute Parts

TCR3DM11,RF(SE

Toshiba Semiconductor and StorageIn Stock: 10502TCR3DM11,RF(SE Datasheet

Current PartRFQ

TCR3DM11,LF(SE

Toshiba Semiconductor and StorageIn Stock: 11036TCR3DM11,LF(SE Datasheet

Parametric EquivalentRFQ

BU11UA3WNVX-TL

Rohm SemiconductorIn Stock: 1109BU11UA3WNVX-TL Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TCR3DM11,RF(SE are identified based on strict parametric equivalence across the following critical criteria:

Electrical Parameters (Must Match):

• Output Configuration: Positive
• Output Type: Fixed
• Number of Regulators: 1
• Voltage - Input (Max): 5.5V
• Voltage - Output (Min/Fixed): 1.1V
• Current - Output: 300mA
• Control Features: Enable
• Protection Features: Over Current, Over Temperature
• Operating Temperature Range: -40°C ~ 85°C

Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package / Case: 4-UDFN Exposed Pad

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into the following categories:

Category 1: Toshiba Packaging Variant TCR3DM11,LF(SE represents an alternative packaging variant of the same base product number (TCR3DM11) from Toshiba Semiconductor and Storage. This part maintains identical electrical specifications and is functionally interchangeable.

Category 2: Cross-Manufacturer Equivalent BU11UA3WNVX-TL is a parametrically equivalent linear voltage regulator from Rohm Semiconductor. This part meets all critical electrical and mechanical parameters, with the exception of voltage dropout specification (0.7V @ 300mA versus 0.65V @ 300mA for the primary part). The part is designated as Not For New Designs by the manufacturer.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: TCR3DM11,LF(SE

TCR3DM11,LF(SE is the recommended substitute for TCR3DM11,RF(SE. Both parts are manufactured by Toshiba Semiconductor and Storage and share identical electrical and mechanical specifications. The difference between these part numbers reflects packaging variants within the same product line. TCR3DM11,LF(SE maintains Active product status and is suitable for new designs. This part provides direct functional equivalence with no performance trade-offs.

Secondary Selection: BU11UA3WNVX-TL

BU11UA3WNVX-TL from Rohm Semiconductor is a parametrically equivalent alternative from a different manufacturer. This part meets all critical electrical and mechanical requirements and is ROHS3 compliant with MSL 1 rating. However, this part carries a Not For New Designs designation from the manufacturer, indicating it is in end-of-life status. Selection of this part should be limited to applications requiring cross-manufacturer sourcing for existing designs or where supply constraints necessitate alternative sourcing. The voltage dropout specification of 0.7V @ 300mA represents a 0.05V increase compared to the primary part specification of 0.65V @ 300mA.

Frequently Asked Questions (FAQ)

Q: Can TCR3DM11,LF(SE be used as a direct replacement for TCR3DM11,RF(SE?

A: Yes. TCR3DM11,LF(SE is a direct functional equivalent. Both parts are Toshiba products with identical electrical specifications, output voltage, current rating, and package configuration. The difference in part number suffix reflects internal packaging or lead frame variants that do not affect circuit performance.

Q: What is the difference between TCR3DM11,RF(SE and BU11UA3WNVX-TL?

A: Both parts are parametrically equivalent linear voltage regulators with identical output voltage (1.1V), output current (300mA), input voltage rating (5.5V max), and package type (4-UDFN Exposed Pad). The primary differences are: (1) manufacturer (Toshiba versus Rohm), (2) voltage dropout specification (0.65V versus 0.7V @ 300mA), (3) product status (Active versus Not For New Designs), and (4) supplier device package designation (4-DFN versus SSON004X1010).

Q: Is BU11UA3WNVX-TL suitable for new product designs?

A: BU11UA3WNVX-TL carries a Not For New Designs designation from Rohm Semiconductor, indicating the part is in end-of-life status. This part should not be selected for new product development. Use TCR3DM11,RF(SE or TCR3DM11,LF(SE for new designs.

Q: Are all three parts pin-compatible?

A: All three parts utilize the 4-UDFN Exposed Pad package configuration with identical mechanical dimensions. Pin compatibility is maintained across all three parts for the specified electrical functions (Enable control, Over Current protection, Over Temperature protection).

Q: What is the significance of the voltage dropout difference between TCR3DM11,RF(SE (0.65V) and BU11UA3WNVX-TL (0.7V)?

A: The voltage dropout specification defines the minimum voltage differential required between input and output for proper regulator operation at maximum output current (300mA). The 0.05V difference means BU11UA3WNVX-TL requires a slightly higher input voltage to maintain regulation at full load. In applications with tight input voltage margins, this difference may be significant.

Q: What does ROHS3 Compliant status indicate?

A: ROHS3 Compliant indicates the part meets Restriction of Hazardous Substances Directive 3 requirements, confirming the absence of restricted substances including lead, cadmium, mercury, hexavalent chromium, and specified brominated flame retardants.

Q: What does MSL 1 (Unlimited) indicate?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has minimal sensitivity to moisture absorption during storage and handling. These parts do not require special moisture-controlled storage conditions and have unlimited shelf life under standard storage conditions.