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Product Detailed Parameters
- Description：IC REG CTRLR BUCK-BOOST 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Transistor Driver
- Function：Step-Up/Step-Down
- Output Configuration：Positive
- Topology：Buck-Boost
- Number of Outputs：2
- Output Phases：2
- Voltage - Supply (Vcc/Vdd)：4.7V ~ 60V
- Frequency - Switching：200kHz ~ 700kHz
- Duty Cycle (Max)：-
- Synchronous Rectifier：Yes
- Clock Sync：Yes
- Serial Interfaces：-
- Control Features：Enable, Frequency Control, Soft Start
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：38-TFSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：38-TSSOP-EP
- Grade：-
- Qualification：-
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Overview
The LT3790EFE#TRPBF is a synchronous four-switch buck-boost voltage and current regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4.7V to 60V and supports switching frequencies between 200kHz and 700kHz. The device provides two output phases with a typical output current capacity of 10A and a maximum output voltage of 60V. Designed for robust power management, it functions across an extended temperature range from -40°C to +125°C. The component utilizes a 38-pin TSSOP-EP package and includes features such as clock synchronization and integrated synchronous rectification.
Feature Summary
- Synchronous four-switch topology enabling efficient step-up and step-down regulation
- Integrated capability to regulate both output voltage and output current simultaneously
- Supports external clock synchronization for noise immunity and phase alignment
Applications
- Industrial power supply systems requiring wide input voltage ranges
- Battery-powered equipment utilizing buck-boost conversion
- Distributed power architectures in telecommunications infrastructure
Procurement Notes
Verify the specific suffix TRPBF indicates reel packaging when reviewing distributor listings. Confirm the 38-pin TSSOP-EP footprint matches your PCB layout requirements. Ensure the operating temperature range meets your environmental specifications. Cross-reference the datasheet revision to confirm pinout consistency. Validate that the synchronous rectifier configuration aligns with your external MOSFET selection.
Selection Notes
Select this controller for applications demanding simultaneous voltage and current regulation without optocouplers. Consider the 200kHz to 700kHz frequency range for optimal inductor size versus efficiency trade-offs. Evaluate the 4.7V to 60V input window against your source availability. Assess thermal performance within the 38-pin TSSOP-EP package for high-current scenarios. Verify compatibility with external components for the specified 10A output capability.
Part Context
This component belongs to the LT3790 series of synchronous buck-boost controllers. It shares architectural similarities with the LT3791 but offers distinct feature sets tailored for specific control requirements. The device represents Analog Devices' approach to isolated or non-isolated wide-range DC-DC conversion. It complements other PMIC solutions by providing flexible topology control for complex power stages.
Replacement Considerations
The LT3790EFE#PBF serves as the leaded equivalent of this surface-mount part. Both variants share identical electrical characteristics and functionality. Select the PBF version only if through-hole mounting is required. Verify that the package dimensions differ sufficiently to accommodate your assembly process.
