SC4612HMLTRT

Description：IC REG CTLR SYNC BUCK 12MLPD
Series：-
Mfr：Semtech Corporation
Package：Tape & Reel (TR)

SKU:0cb185ca0ccc Category: DC DC Switching Controllers Brand: Semtech Corporation

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Product introduction

Product Detailed Parameters

Description：IC REG CTLR SYNC BUCK 12MLPD
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)：4.75V ~ 40V
Frequency - Switching：100kHz ~ 1.2MHz
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Current Limit, Enable, Frequency Control, Soft Start
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：12-VFDFN Exposed Pad
Supplier Device Package：12-MLPD (4x3)
Grade：-
Qualification：-

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SC4612HMLTRT

Overview

The SC4612HMLTRT is a high-performance synchronous buck switching controller manufactured by Semtech Corporation. It supports a wide input voltage range with VDD up to 28V and VPWRIN up to 40V, delivering an output voltage as low as 0.5V. The device features a 1.7A gate drive capability and allows for programmable switching frequencies up to 1.2 MHz. It incorporates asynchronous soft-start functionality and low-side RDS-ON sensing with hiccup mode current limit. The component is available in lead-free MLPD-12 and SOIC-14 packages.

Feature Summary

Wide input voltage range supporting up to 40V power input
Asynchronous soft-start mode prevents bus discharge during startup
Low-side RDS-ON sensing with hiccup mode current limit
Programmable switching frequency up to 1.2 MHz

Applications

Distributed power architectures
Telecommunication equipment
Servers and workstations
Base station power management
Point of use low voltage high current applications

Procurement Notes

Verify the specific package variant (MLPD-12 or SOIC-14) required for your design, as the base part number covers both. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement. Ensure the ordering suffix matches the desired tape and reel quantity specifications provided in the official datasheet.

Selection Notes

Select this controller for applications requiring wide input supply ranges and low output voltages down to 0.5V. The asynchronous start-up feature is critical when powering converters into preset external voltages or pre-biased outputs to prevent disturbances. Consider the 1.7A gate drive capability for driving external MOSFETs efficiently in high-current scenarios.

Part Context

The SC4612HMLTRT belongs to the SC4612 family of synchronous buck controllers from Semtech. This series is optimized for high efficiency and wide input voltage operation. The HMLTRT designation typically indicates a specific package and tape-and-reel configuration within the broader product line designed for surface-mount assembly.