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Product Detailed Parameters
- Description：IC REG CTLR BST/FWRD CONV 20SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up, Step-Up/Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Boost, Forward Converter
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：Up to 20V
- Frequency - Switching：-
- Duty Cycle (Max)：90%
- Synchronous Rectifier：No
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Phase Control, Soft Start
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：20-SO
- Grade：-
- Qualification：-
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Overview
The LT1339ISW#TRPBF is a high-power synchronous current-mode switching regulator controller manufactured by Analog Devices Inc. It is designed to drive dual N-channel MOSFETs, providing a single-IC solution for DC/DC conversion applications. The device operates with a supply voltage up to 60V and supports a maximum duty cycle of 90%. It features a fixed switching frequency of 150kHz. The component is housed in a WSOIC-20 package and is rated for an operating temperature range from -40°C to +85°C.
Feature Summary
- Synchronous current-mode control architecture
- Integrated driver for dual N-channel MOSFETs
- High input voltage capability up to 60V
- Fixed 150kHz switching frequency operation
Applications
- Boost converter designs
- Forward converter topologies
- Isolated power supply implementations
- Step-up and step-down DC/DC regulation
Procurement Notes
Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc., formerly Linear Technology. Ensure the SOIC-20 package type matches your PCB footprint requirements. Check RoHS compliance status through official distributor channels before finalizing procurement.
Selection Notes
Select this controller for applications requiring high-power synchronous rectification without external gate drivers. The 60V supply rating suits industrial or automotive inputs. The 150kHz frequency balances efficiency and component size. Ensure thermal management aligns with the WSOIC-20 package dissipation limits.
Part Context
This part belongs to the LT1339 series of high-power synchronous DC/DC controllers. It is distinct from the LT1331 and LTC1338 RS-232 interface ICs also present in general search results. The ISW designation specifies the industrial temperature grade and SOIC-20 package variant within the Analog Devices portfolio.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing gate drivers and passive components if considering alternatives.
