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LTC1147LCS8#TRPBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR BUCK 8SOIC. Review the specifications below when checking this part for your BOM.
DC DC Switching Controllers specifications for LTC1147LCS8#TRPBF
- 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
- Topology：Buck
- Number of Outputs：1
- Output Phases：1
- Voltage - Supply (Vcc/Vdd)：3.5V ~ 14V
- Frequency - Switching：-
- Duty Cycle (Max)：100%
- Synchronous Rectifier：No
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
DC DC Switching Controllers datasheet and documents for LTC1147LCS8#TRPBF
DC DC Switching Controllers Overview
The LTC1147LCS8#TRPBF is a high-efficiency step-down switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5V to 16V and provides a fixed 3.3V output. The device supports up to 700mA output current with a typical quiescent current of 20uA. It features a fixed 400kHz switching frequency, 100% duty cycle capability, and shutdown functionality. Packaged in an 8-lead SOIC (0.15 inch) for surface mount applications, it functions as a monolithic DC/DC converter controller.
DC DC Switching Controllers Feature Summary
- High efficiency step-down topology with integrated power switch
- Fixed 3.3V output voltage option for simplified design
- Low quiescent current operation for battery-powered systems
- Shutdown pin for extended battery life management
DC DC Switching Controllers Applications
- Battery-powered portable equipment
- Industrial control systems
- Communications infrastructure
- Automotive electronics
DC DC Switching Controllers Procurement Notes
Verify the specific suffix #TRPBF indicates tape and reel packaging versus tube variants. Confirm the LCS8 designation corresponds to the commercial temperature grade and SOIC package dimensions. Ensure compatibility with existing PCB footprints and reflow profiles during procurement validation.
DC DC Switching Controllers Selection Notes
Select this component when a fixed 3.3V output is required without external feedback resistors. Consider the 400kHz frequency for balancing component size and efficiency. Evaluate the 700mA limit against peak load requirements. Compare quiescent current specifications against other buck controllers for low-power standby applications.
DC DC Switching Controllers Part Context
This part belongs to the LTC1147 family of high-efficiency switching regulator controllers. It shares architectural similarities with the IS8 and CN8 variants but differs in temperature rating and package type. The L-series typically denotes commercial grade operation compared to industrial or military grades found in other suffixes.
DC DC Switching Controllers Replacement Considerations
Direct substitutes include LTC1147IS8-3.3#PBF for industrial temperature ranges and LTC1147CN8-3.3#PBF for DIP packages. Verify pinout compatibility and thermal performance when cross-referencing with other manufacturers' synchronous buck controllers.
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