LT8335EDDB#PBF Equivalent & Substitute Parts

Part Overview

The LT8335EDDB#PBF is a Boost and SEPIC Switching Regulator IC manufactured by Analog Devices Inc., designed for positive or negative adjustable output applications. This device operates as a step-up or step-up/step-down converter with a maximum output current of 2A and a switching frequency of 2MHz. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

LT8335EDDB#PBF

Analog Devices Inc.In Stock: 940LT8335EDDB#PBF Datasheet

Current PartRFQ

LT8330EDDB#PBF

Analog Devices Inc.In Stock: 916LT8330EDDB#PBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LT8335EDDB#PBF is determined by compatibility across the following critical parameters:

Topology and Function: Both the main part and substitute must support Boost and SEPIC topologies with step-up or step-up/step-down functionality.

Output Configuration: The substitute must maintain positive or negative adjustable output capability.

Voltage Specifications: Input voltage range, output voltage range (minimum and maximum), and adjustable output voltage levels must be compatible with the application requirements.

Current Rating: The substitute's output current capability must meet or exceed the application's current demands.

Switching Frequency: The 2MHz switching frequency is maintained across compatible alternatives.

Package and Mounting: The 8-WFDFN Exposed Pad package with 8-DFN (3x2) supplier device package ensures mechanical and electrical compatibility.

Operating Temperature Range: The -40°C to 125°C junction temperature range must be supported.

The LT8330EDDB#PBF qualifies as a manufacturer-recommended substitute based on these parameters, with the primary distinction being a reduced output current rating of 1A compared to the 2A capability of the LT8335EDDB#PBF.

Parameter Comparison

Engineering Selection Recommendations

The LT8330EDDB#PBF is the manufacturer-recommended substitute for the obsolete LT8335EDDB#PBF. The substitute maintains identical topology, output configuration, voltage specifications at minimum levels, switching frequency, operating temperature range, and package form factor.

Product Status Consideration: The LT8330EDDB#PBF carries an Active product status, ensuring ongoing availability and manufacturer support, whereas the LT8335EDDB#PBF is classified as Obsolete.

Compliance and Certifications: The LT8330EDDB#PBF is ROHS3 Compliant and REACH Unaffected, providing regulatory compliance for new designs and production environments with environmental restrictions.

Current Rating Differential: The primary technical distinction is the output current rating. The LT8330EDDB#PBF provides 1A output current compared to the 2A capability of the LT8335EDDB#PBF. Selection of this substitute is appropriate only for applications requiring output current of 1A or less.

Voltage Range Enhancement: The LT8330EDDB#PBF supports an expanded input voltage range (3V to 40V versus 3V to 25V) and an increased maximum output voltage (60V versus 28V), providing greater design flexibility for applications within these extended specifications.

Frequently Asked Questions (FAQ)

Q: Can the LT8330EDDB#PBF directly replace the LT8335EDDB#PBF in all applications?

A: Direct substitution is valid only for applications requiring output current of 1A or less. Applications demanding the full 2A output current capability of the LT8335EDDB#PBF cannot use the LT8330EDDB#PBF as a substitute.

Q: Are the package dimensions identical between these two parts?

A: Both parts use the 8-WFDFN Exposed Pad package with 8-DFN (3x2) supplier device package specifications, ensuring identical PCB footprints and mounting compatibility.

Q: What is the significance of the expanded voltage range in the LT8330EDDB#PBF?

A: The LT8330EDDB#PBF supports input voltages up to 40V and output voltages up to 60V, compared to 25V and 28V respectively for the LT8335EDDB#PBF. This expanded range accommodates a broader range of power supply architectures and output voltage requirements.

Q: Does the LT8330EDDB#PBF maintain the same adjustable output voltage levels?

A: Yes, both parts support identical adjustable output voltage levels of 1.6V and -0.8V minimum, maintaining compatibility with existing feedback network designs.

Q: What compliance advantages does the LT8330EDDB#PBF provide?

A: The LT8330EDDB#PBF is ROHS3 Compliant and REACH Unaffected, meeting environmental and regulatory requirements for markets with restrictions on hazardous substances.

Q: Is the switching frequency identical between these parts?

A: Yes, both the LT8335EDDB#PBF and LT8330EDDB#PBF operate at 2MHz switching frequency, ensuring compatibility with existing filter and compensation network designs.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.