SC4508AMLTRT

$3.39

Description：IC REG CTRLR BUCK/BCK-BST 12MLPQ
Series：-
Mfr：Semtech Corporation
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a5084f25c9f6 Category: DC DC Switching Controllers Brand: Semtech Corporation

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Product introduction

Product Detailed Parameters

Description：IC REG CTRLR BUCK/BCK-BST 12MLPQ
Series：-
Mfr：Semtech Corporation
Package：Tape & Reel (TR),Cut Tape (CT)
Output Type：Transistor Driver
Function：Step-Down, Step-Up/Step-Down
Output Configuration：Positive
Topology：Buck, Buck-Boost
Number of Outputs：1
Output Phases：1
Voltage - Supply (Vcc/Vdd)：2.7V ~ 15V
Frequency - Switching：100kHz ~ 1.5MHz
Duty Cycle (Max)：97%
Synchronous Rectifier：No
Clock Sync：No
Serial Interfaces：-
Control Features：Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：12-VQFN Exposed Pad
Supplier Device Package：12-MLPQ (4x4)
Grade：-
Qualification：-

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SC4508AMLTRT

Overview

The SC4508AMLTRT is a low-voltage current mode switching regulator controller manufactured by Semtech. It supports Buck and Buck-Boost topologies with a single output. The device features a programmable switching frequency of 1.5 MHz and drives P-channel power MOSFETs. It offers an output current capability of 15 A, a maximum duty cycle of 95%, and programmable output voltage. The component operates within a specified temperature range and is supplied in a tape and reel packaging format.

Feature Summary

Current mode control architecture for stable regulation
Supports both Buck and Buck-Boost (Inverting) conversion types
Designed to drive P-channel power MOSFETs
Features programmable switching frequency

Applications

Typical application for Buck or Buck-Boost (Inverting) Current Mode Controller
Low voltage current mode switching regulator designs
Applications requiring P-channel power MOSFET drive

Procurement Notes

Verify the specific ordering suffix and package variant when sourcing. Confirm that the requested quantity aligns with the manufacturer's standard shipping configuration. Ensure compatibility with the intended PCB footprint and thermal requirements. Cross-reference the datasheet revision date to confirm technical accuracy. Validate that the component meets all necessary regulatory compliance standards for the target market.

Selection Notes

Select this controller for applications requiring high output current up to 15 A with a P-channel MOSFET solution. Consider the 1.5 MHz switching frequency for balancing size and efficiency. Evaluate the Buck-Boost capability if input voltage variations are expected. Ensure the design accommodates the programmable frequency settings and duty cycle limits defined in the specifications.

Part Context

The SC4508 belongs to Semtech's line of switching regulators and controllers. It is part of a family that includes related models such as the SC4502 and SC4501, which offer different current ratings and topologies like Boost. This specific model focuses on high-current Buck and Buck-Boost applications using current mode control.