LTC7802EUFDM#PBF Equivalent & Substitute Parts

Part Overview

The LTC7802EUFDM#PBF is a 40V, low IQ dual-phase synchronous step-down DC-DC controller IC manufactured by Analog Devices Inc. This buck regulator operates as a transistor driver for positive output step-down applications with integrated control features including enable, frequency control, power good, soft start, and tracking functionality. The device is housed in a 28-QFN (4x5) package with wettable flank mounting and exposed pad configuration.

The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified based on parametric equivalence across electrical specifications, package configuration, and regulatory compliance to support design flexibility and supply chain continuity.

Substiute Parts

LTC7802EUFDM#PBF

Analog Devices Inc.In Stock: 1173LTC7802EUFDM#PBF Datasheet

Current PartRFQ

LTC7802IUFDM#WPBF

Analog Devices Inc.In Stock: 1122LTC7802IUFDM#WPBF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTC7802EUFDM#PBF are identified through parametric equivalence verification. The substitution logic is based on strict alignment of the following critical parameters:

Electrical Specifications:

• Supply voltage range: 4.5V ~ 40V
• Switching frequency capability: 100kHz ~ 3MHz
• Duty cycle maximum: 99%
• Dual-phase output configuration with 2 outputs
• Buck topology with positive output
• Synchronous rectifier and clock sync functionality
• Control features: Enable, Frequency Control, Power Good, Soft Start, Tracking

Package and Mechanical Requirements:

• 28-WFQFN package with exposed pad
• Surface mount configuration with wettable flank
• 4x5mm footprint dimensions

Regulatory and Compliance Alignment:

• RoHS3 compliance
• MSL 1 rating (unlimited moisture sensitivity)
• REACH unaffected status
• EAR99 export classification

Substitute parts must match all parameters listed above without deviation. Parts are grouped as direct parametric equivalents when all electrical, mechanical, and compliance specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

The LTC7802IUFDM#WPBF is a direct parametric equivalent to the LTC7802EUFDM#PBF. Both parts are manufactured by Analog Devices Inc. and share identical electrical specifications, package configuration, and regulatory compliance status.

Selection Basis:

Both parts maintain Active product status with full RoHS3 compliance and REACH unaffected designation. The parametric alignment across all electrical specifications—including supply voltage range, switching frequency capability, duty cycle, output phase configuration, and control feature set—establishes functional interchangeability within the same application circuit.

The identical 28-WFQFN package with exposed pad, surface mount configuration, and wettable flank mounting ensures mechanical and thermal compatibility. Both parts operate across the same temperature range (-40°C ~ 125°C junction temperature) and carry MSL 1 rating for unlimited moisture sensitivity.

Component selection between these two parts may be determined by supply chain availability, inventory status, or procurement lead time requirements, as no electrical or mechanical differentiation exists between them.

Frequently Asked Questions (FAQ)

Q: Are the LTC7802EUFDM#PBF and LTC7802IUFDM#WPBF electrically interchangeable?

A: Yes. Both parts are parametric equivalents with identical electrical specifications across supply voltage range (4.5V ~ 40V), switching frequency capability (100kHz ~ 3MHz), duty cycle maximum (99%), output phase configuration (2 phases, 2 outputs), and control feature set (Enable, Frequency Control, Power Good, Soft Start, Tracking).

Q: Can these parts be used interchangeably in the same PCB layout?

A: Yes. Both parts use the identical 28-WFQFN package with exposed pad configuration, 4x5mm footprint dimensions, surface mount mounting type, and wettable flank design. PCB footprints and thermal management layouts are directly compatible.

Q: What is the difference between these two part numbers?

A: The part numbers reflect different temperature grade or packaging tape designations from Analog Devices Inc. The suffix variations (EUFDM#PBF versus IUFDM#WPBF) indicate different manufacturing or distribution configurations. All electrical and mechanical parameters remain identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the LTC7802EUFDM#PBF and LTC7802IUFDM#WPBF carry full RoHS3 compliance certification with REACH unaffected status and EAR99 export classification.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 125°C junction temperature range, supporting industrial and extended temperature applications.

Q: Do both parts support synchronous rectification and clock synchronization?

A: Yes. Both parts include integrated synchronous rectifier functionality and clock sync capability, enabling efficient multi-phase buck regulation with external clock synchronization support.

Q: What is the moisture sensitivity rating for these parts?

A: Both parts carry MSL 1 rating, indicating unlimited moisture sensitivity with no moisture-related storage or handling restrictions.