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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Output Type：Transistor Driver
- Function：Step-Down
- Output Configuration：Positive, Isolation Capable
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：8.2V ~ 25V
- Frequency - Switching：500kHz
- Duty Cycle (Max)：48%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Frequency Control
- Operating Temperature：0°C ~ 100°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The LT1241CS8#TRPBF is a fixed-frequency, current mode pulse width modulator from the Analog Devices LT1241 series. It functions as a buck regulator controller with isolation-capable output step-down DC-DC capabilities. The device operates within an 8.2V to 25V supply voltage range and supports a switching frequency of 500kHz. It features a maximum duty cycle of 48% and draws 7mA of operating supply current. Packaged in an SOIC-8 surface-mount format, it serves as an improved plug-compatible version of industry-standard controllers.
Feature Summary
- Implements current mode control architecture for high-speed pulse width modulation
- Designed as a fixed-frequency buck regulator controller with isolation capability
- Provides improved plug compatibility with established industry standard designs
Applications
- Step-down DC-DC converter circuits
- Isolation-capable power supply designs
- High-speed current mode control systems
Procurement Notes
Verify component authenticity through official Analog Devices channels or authorized distributors. Confirm the specific suffix TRPBF indicates tape-and-reel packaging. Check current availability status as supply may be limited or subject to factory special orders. Ensure compliance with RoHS directives if required by your application standards.
Selection Notes
Select this component when a fixed-frequency current mode controller is required for buck applications. Consider the 500kHz switching frequency and 48% max duty cycle constraints. Verify that the 8.2V to 25V supply range matches your system requirements. The SOIC-8 package suits space-constrained surface-mount designs needing industry-standard pinouts.
Part Context
This part belongs to the LT1241 series of switching controllers manufactured by Analog Devices Inc. It is a specialized PMIC designed for efficient power conversion tasks. The series is known for providing robust performance in industrial and commercial power management applications requiring reliable step-down regulation.
Replacement Considerations
The datasheet identifies the LT1241 series as improved plug-compatible versions of industry standard devices. Specific substitute part numbers are not explicitly listed in the provided documentation; consult the manufacturer's guide for direct replacements.
