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Product Detailed Parameters
- Description：IC REG CTRLR BUCK/BOOST 28TSS
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：4V ~ 60V
- Frequency - Switching：190kHz ~ 630kHz
- Duty Cycle (Max)：95%
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Current Limit, Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT8390IFE#PBF is a synchronous four-switch buck-boost DC/DC controller manufactured by Analog Devices. It supports an input voltage range of 4 V to 60 V and regulates output voltages from 0 V to 60 V. The device operates with a switch frequency between 600 kHz and 2 MHz, featuring clock synchronization capabilities. Key electrical parameters include a maximum static current of 2.1 mA and a load regulation of 1%. It is housed in a TSSOP-EP-28 package and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Synchronous four-switch topology enables efficient buck, boost, and buck-boost operation across wide input and output voltage ranges.
- Integrated clock synchronization allows for phase alignment and noise reduction in multi-module systems.
- Comprehensive control features include programmable soft start, cycle-by-cycle current limiting, and frequency control.
Applications
- Industrial automation power supplies
- Battery-powered equipment requiring stable voltage during discharge
- Automotive electronics systems
Procurement Notes
Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches project requirements. Check current availability status as supply constraints may affect lead times. Ensure storage conditions comply with moisture sensitivity levels defined in the datasheet to maintain reliability before assembly.
Selection Notes
Select this controller when designing systems requiring operation above, below, or equal to the input voltage. Consider the 28-pin exposed pad package for thermal management. Evaluate the 600 kHz to 2 MHz frequency range against external component size constraints. Ensure the 4 V to 60 V input range aligns with the system's power source characteristics.
Part Context
This component belongs to the LT8390 series of power management ICs. It serves as a core switching regulator solution for applications demanding high efficiency and flexible voltage conversion. The device integrates essential control logic while requiring external power switches and passive components for complete implementation.
Replacement Considerations
LT8390HFE#PBF offers similar functionality with a different operating temperature range and switch frequency specifications. Verify pin compatibility and thermal performance when substituting. Review datasheet differences regarding junction temperature limits and frequency modulation options.
