SC1101CSTRT

Description：IC REG CTRLR BUCK 8SOIC
Series：-
Mfr：Semtech Corporation
Package：Tape & Reel (TR)

SKU:b18003d6a979 Category: DC DC Switching Controllers Brand: Semtech Corporation

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK 8SOIC
Series：-
Mfr：Semtech Corporation
Package：Tape & Reel (TR)
Output Type：PWM Signal
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：3.8V ~ 7V
Frequency - Switching：200kHz
Duty Cycle (Max)：95%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：-
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
Grade：-
Qualification：-

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SC1101CSTRT

Overview

The SC1101CSTRT is an asynchronous voltage-mode PWM controller manufactured by Semtech Corporation. Designed for low output voltage DC/DC power supply applications, it functions as a fixed-voltage buck converter controller. The device operates within a supply voltage range of 4.4V to 12.6V and supports a switching frequency of 250kHz. It features a maximum duty cycle of 95% and includes control characteristics such as current limit, enable, phase control, and soft start. The component is housed in a 14-SOIC package with a width of 3.90mm and is rated for operation between 0°C and 70°C.

Feature Summary

Asynchronous voltage-mode PWM control architecture
Integrated current limit, enable, and soft start functionality
Fixed-voltage buck converter topology support

Applications

Low output voltage DC/DC power supplies
Fixed-voltage buck converter designs
General-purpose step-down power regulation

Procurement Notes

Verify the obsolete status of this component before design finalization. Confirm availability through authorized distributors or secondary markets. Ensure the 14-SOIC package dimensions match the target PCB footprint. Check for RoHS compliance documentation if required by specific environmental regulations. Validate that the operating temperature range meets the application's thermal requirements.

Selection Notes

Select this controller for applications requiring simple, low-cost voltage-mode regulation. It is suitable for systems needing fixed-voltage buck conversion with integrated protection features. Consider the 250kHz switching frequency when designing external passive components. Ensure the input voltage stays within the 4.4V to 12.6V operational window. Evaluate the 14-SOIC package constraints against available board space.

Part Context

The SC1101 series represents Semtech's solution for basic DC/DC power management. This specific model focuses on asynchronous buck conversion. It targets cost-sensitive applications where complex digital control is unnecessary. The component integrates essential protections to simplify system design. It serves as a foundational building block for standard power distribution networks.