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SC1110TSTRT
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Product Detailed Parameters
- Description：IC REG CTRLR BUCK 14TSSOP
- Series：-
- Mfr：Semtech Corporation
- 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)：4.4V ~ 12.6V
- Frequency - Switching：250kHz
- Duty Cycle (Max)：95%
- Synchronous Rectifier：Yes
- Clock Sync：No
- Serial Interfaces：-
- Control Features：Current Limit, Enable, Phase Control, Soft Start
- Operating Temperature：0°C ~ 70°C (TA)
- Mounting Type：Surface Mount
- Package / Case：14-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：14-TSSOP
- Grade：-
- Qualification：-
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Overview
The SC1110TSTRT is a synchronous voltage-mode DC-DC buck controller manufactured by Semtech Corporation, housed in a 14-TSSOP package. It operates with an input supply voltage range of 4.4V to 12.6V and features a fixed switching frequency of 250kHz with a maximum duty cycle of 95%. Designed for DDR memory systems, it generates termination voltages that tightly track the chipset voltage at exactly 50%. The device includes integrated current limit, enable, phase control, and soft start functions, operating within a temperature range of 0°C to 70°C.
Feature Summary
- Synchronous voltage-mode control architecture enabling bidirectional power flow through MOSFET half-bridge management.
- Termination voltage regulation capability designed to strictly track chipset voltage levels.
- Integrated protection and control features including current limiting, enable logic, phase control, and soft-start functionality.
Applications
- Double data rate (DDR) memory systems
- Applications requiring active termination for wide data buses
Procurement Notes
Verify component status as obsolete before procurement planning. Confirm package compatibility with 14-TSSOP footprint. Ensure design supports 4.4V to 12.6V input range. Validate thermal requirements for 0°C to 70°C operation. Check for alternative sources due to end-of-life status.
Selection Notes
Select this controller for designs requiring precise termination voltage tracking relative to chipset voltage. Suitable for space-constrained applications utilizing the 14-TSSOP surface-mount package. Consider the 250kHz switching frequency for inductor sizing. Verify compatibility with synchronous rectification requirements for bidirectional power flow.
Part Context
The SC1110 series serves as a specialized solution for memory interface power management. The TSTR suffix indicates tape and reel packaging for automated assembly. This component belongs to Semtech's portfolio of power management integrated circuits focused on high-performance digital applications.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, engineering change orders may be required for existing designs.
