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Product Detailed Parameters
- Description：IC REG BOOST SEPIC 4A 12DFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up
- Output Configuration：Positive
- Topology：Boost, SEPIC
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：2.8V
- Voltage - Input (Max)：60V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：60V (Switch)
- Current - Output：4A (Switch)
- Frequency - Switching：2MHz
- Synchronous Rectifier：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：12-WFDFN Exposed Pad
- Supplier Device Package：12-DFN (4x3)
- Grade：-
- Qualification：-
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Overview
The LT8364HDE#PBF is a current mode DC/DC converter featuring an internal 60V, 4A switch. It operates from a 2.8V to 60V input range and supports boost, SEPIC, or inverting topologies. The device utilizes a single feedback pin architecture for voltage programming. Switching frequency is programmable between 300kHz and 2MHz. Burst Mode operation reduces quiescent current to 9µA while maintaining output ripple below 15mV. It includes spread spectrum frequency modulation for EMI reduction. The component is housed in a 12-WFDFN (4mm x 3mm) package with an exposed thermal pad.
Feature Summary
- Single feedback pin architecture simplifies design for positive or negative output configurations
- Burst Mode operation ensures high efficiency at very low output currents
- Integrated 60V, 4A power switch eliminates external component requirements
- Spread spectrum frequency modulation minimizes electromagnetic interference
Applications
- Automotive input power systems
- Telecommunications power rails
- Industrial power distribution
- Battery packs using multiple series cells
Procurement Notes
Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm the HDE designation corresponds to the high-temperature industrial grade variant (-40°C to +150°C junction temperature). Ensure the DFN-12 package footprint matches the PCB layout specifications provided in the official datasheet. Cross-reference the manufacturer part number directly with Analog Devices documentation to avoid confusion with similar family members.
Selection Notes
Select this component for applications requiring wide input voltage ranges up to 60V. The high-temperature rating makes it suitable for harsh environments. Consider the 4A switch capability for moderate power levels. The single feedback pin reduces pin count compared to traditional controllers. Evaluate the need for synchronous rectification versus external diodes based on efficiency targets.
Part Context
This part belongs to the LT8364 family of low IQ converters. Other variants include LT8364EDE for standard industrial temperatures and LT8364EMSE for MSOP packaging. The family shares core topology but differs in thermal performance and physical dimensions. The HDE version specifically addresses extended temperature requirements found in automotive and industrial sectors.
Replacement Considerations
LT8364EDE#PBF serves as a lower temperature alternative within the same package. LT8364EMSE#WPBF offers equivalent electrical performance in a surface mount plastic package. Verify pin compatibility and thermal dissipation characteristics before substituting.
