ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG BOOST CUK ADJ 3.3A 36QFN
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive or Negative
- Topology：Boost, Cuk, Flyback, SEPIC
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：5V
- Voltage - Input (Max)：80V
- Voltage - Output (Min/Fixed)：1.6V
- Voltage - Output (Max)：84V (Switch)
- Current - Output：3.3A (Switch)
- Frequency - Switching：100kHz ~ 1MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：36-WFQFN, 28 Leads, Exposed Pad
- Supplier Device Package：36-QFN (5x6)
Download product information
Overview
The LT3958EUHE#PBF is a high input voltage DC/DC converter manufactured by Analog Devices Inc. It supports Boost, Cuk, Flyback, and SEPIC topologies with a single adjustable output. The device accepts an input voltage range of 5V to 80V and can deliver up to 3.3A switch current. It features a programmable switching frequency from 100kHz to 1MHz and operates within a junction temperature range of -40°C to 125°C. Packaged in a 36-WFQFN (5x6) housing with 28 leads and an exposed pad, it provides positive or negative output configurations.
Feature Summary
- Supports multiple converter topologies including boost, Cuk, flyback, and SEPIC for versatile power design
- Handles high input voltages up to 80V with adjustable output capabilities
- Features programmable switching frequency ranging from 100kHz to 1MHz
- Delivers high switch current capacity of 3.3A for demanding applications
Applications
- Industrial power supply systems requiring high input voltage tolerance
- Automotive electronics utilizing wide input voltage ranges
- Telecommunications infrastructure equipment
- Battery-powered devices needing efficient step-up conversion
Procurement Notes
Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm the EUHE package variant matches thermal requirements. Check availability status as distribution may be limited. Ensure compatibility with 36-QFN footprint during PCB layout. Validate operating temperature range against system constraints before finalizing procurement.
Selection Notes
Choose this component for designs requiring flexible topology support beyond standard boost converters. Consider the 3.3A current limit for load requirements. Evaluate thermal performance due to the dense QFN package. Compare against LT3957 if lower current suffices. Verify that the 80V max input aligns with source voltage peaks.
Part Context
Part of the LT3958 series offering high-voltage DC/DC conversion. Manufactured by Analog Devices Inc. under the PMIC category. Related evaluation board available as DC1569A. Shares family characteristics with other LT395x converters but distinct in current and topology flexibility.
Replacement Considerations
LT3958IUHE#TRPBF offers identical functionality in tape-and-reel packaging. LT3958IUHE#PBF serves as a direct pin-compatible alternative in tube format. Verify package marking differences between variants.
