LT3040IDD#PBF Equivalent & Substitute Parts

Part Overview

The LT3040IDD#PBF is a linear voltage regulator IC manufactured by Analog Devices Inc., classified as a Power Management (PMIC) component. This device functions as a positive adjustable output regulator with a single output channel rated for 200mA maximum output current. The LT3040IDD#PBF is an active product suitable for applications requiring low-dropout linear regulation with programmable output voltage.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across critical parameters including output current rating, voltage specifications, dropout characteristics, protection features, and package form factor.

Substiute Parts

LT3040IDD#PBF

Analog Devices Inc.In Stock: 1189LT3040IDD#PBF Datasheet

Current PartRFQ

LT3040EDD#PBF

Analog Devices Inc.In Stock: 1152LT3040EDD#PBF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LT3040IDD#PBF are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Output current rating: 200mA
• Input voltage maximum: 20V
• Output voltage range: 0V to 15V (adjustable)
• Dropout voltage: 0.6V @ 200mA
• Quiescent current: 2.6 mA
• PSRR performance: 117dB ~ 56dB (120Hz ~ 10MHz)
• Protection features: Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
• Control features: Enable function

Mechanical Equivalence Criteria:

• Package type: 10-WFDFN Exposed Pad
• Mounting type: Surface Mount
• Operating temperature range: -40°C ~ 125°C (TJ)

Compliance Equivalence Criteria:

• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)
• Active product status

Parts meeting all three equivalence categories are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both the LT3040IDD#PBF and LT3040EDD#PBF are active products manufactured by Analog Devices Inc. with identical electrical specifications and mechanical packaging. Both devices maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1) ratings, suitable for standard manufacturing and storage conditions.

Selection between these parts is based on inventory availability and supply chain considerations, as all electrical, thermal, and compliance parameters are equivalent. Both parts support the same circuit design and PCB layout requirements.

Frequently Asked Questions (FAQ)

Q: Can LT3040EDD#PBF replace LT3040IDD#PBF in existing designs?

A: Yes. The LT3040EDD#PBF is a direct parametric equivalent with identical output current (200mA), voltage specifications (0V to 15V adjustable), dropout voltage (0.6V @ 200mA), protection features, and package form factor (10-WFDFN Exposed Pad). No circuit modifications are required.

Q: Are there differences in the package or mounting requirements?

A: No. Both parts use the 10-WFDFN Exposed Pad package with surface mount technology. PCB footprints, solder reflow profiles, and assembly procedures are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both LT3040IDD#PBF and LT3040EDD#PBF are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings. Both are active products suitable for current production applications.

Q: What are the key parameters that determine substitutability?

A: Substitutability is determined by equivalence in output current (200mA), input/output voltage ranges (20V max input, 0-15V adjustable output), dropout voltage (0.6V @ 200mA), quiescent current (2.6 mA), PSRR performance (117dB ~ 56dB), protection features (Over Current, Over Temperature, Reverse Polarity, UVLO), operating temperature range (-40°C to 125°C), and package type (10-WFDFN Exposed Pad).

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts maintain identical thermal operating ranges (-40°C to 125°C junction temperature) and identical electrical performance specifications including PSRR, quiescent current, and dropout characteristics.