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Product Detailed Parameters
- Description：IC REG CTRLR BUCK-BOOST 38TSSOP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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：-55°C ~ 150°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 LT3790MPFE#TRPBF is a synchronous four-switch buck-boost voltage and current regulator controller manufactured by Analog Devices. It operates with an input voltage range of 4.7V to 60V and supports switching frequencies between 200kHz and 700kHz. The device features a 38-pin TSSOP package with exposed pad for thermal management. It includes clock synchronization capabilities and supports up to two output phases. The controller manages both voltage and current regulation in complex power topologies.
Feature Summary
- Synchronous four-switch buck-boost control architecture
- Integrated voltage and current regulation capabilities
- External clock synchronization functionality
- Support for multi-phase operation
Applications
- Industrial power supply systems
- Automotive electronics applications
- Telecommunications infrastructure equipment
Procurement Notes
Verify component authenticity through official Analog Devices channels or authorized distributors. Confirm the specific suffix TRPBF indicates tape-and-reel packaging. Ensure the MP grade designation matches environmental requirements. Cross-reference datasheet revisions to confirm pinout and electrical specifications align with design requirements before procurement.
Selection Notes
Select this controller when designing buck-boost converters requiring wide input voltage ranges up to 60V. Consider its suitability for applications demanding precise current regulation alongside voltage control. Evaluate thermal performance needs given the TSSOP-EP package. Assess system complexity against the controller's multi-phase and synchronization features.
Part Context
This component belongs to the LT3790 series of synchronous buck-boost controllers. It shares architectural similarities with the LT3791 but differs in specific electrical characteristics and package options. The MP variant denotes military/extended temperature grade specifications compared to standard commercial versions like the EFE suffix.
Replacement Considerations
LT3790EFE#TRPBF serves as a commercial-grade alternative within the same family. LT3791EFE-1#TRPBF offers similar topology but with different electrical parameters. Verify pin compatibility and electrical specifications before substituting any alternative part numbers.
