ISL9444CRZ

Description：IC REG CTRLR BUCK 32QFN
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube

SKU:a136a813b407 Category: DC DC Switching Controllers Brand: Renesas Electronics Corporation

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Product introduction

ISL9444CRZ is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Renesas Electronics Corporation. Its product description is IC REG CTRLR BUCK 32QFN. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for ISL9444CRZ

Description：IC REG CTRLR BUCK 32QFN
Series：-
Mfr：Renesas Electronics Corporation
Package：Tube
Output Type：Transistor Driver
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Number of Outputs：3
Output Phases：2
Voltage - Supply (Vcc/Vdd)：4.5V ~ 28V
Frequency - Switching：200kHz ~ 1.2MHz
Duty Cycle (Max)：-
Synchronous Rectifier：Yes
Clock Sync：Yes
Serial Interfaces：-
Control Features：Enable, Frequency Control, Phase Control, Power Fail, Power Good, Soft Start, Tracking
Operating Temperature：0°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：40-VFQFN Exposed Pad
Supplier Device Package：40-QFN (5x5)
Grade：-
Qualification：-

DC DC Switching Controllers datasheet and documents for ISL9444CRZ

ISL9444CRZ

DC DC Switching Controllers Overview

The ISL9444CRZ is a triple-output synchronous buck controller integrating three PWM controllers designed for multi-rail power applications. It operates with an input voltage range of 5.6 V to 16 V and supports output voltages such as 3.3 V and 5 V. The device utilizes current mode PWM control and features 180-degree out-of-phase operation across its three channels. It is housed in a TQFN-40-EP (5x5) package and is rated for an operating temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

Integrates three fully featured PWM controllers for multi-rail power generation
Supports 180-degree out-of-phase synchronous step-down operation
Utilizes current-mode control architecture

DC DC Switching Controllers Applications

Cable and satellite set-top boxes
VoIP gateways
Cable modems
Home connectivity products

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'CRZ' against the manufacturer's official datasheet to confirm the exact temperature grade and packaging specifications. Ensure compatibility with the intended PCB footprint, specifically the TQFN-40-EP (5x5) package dimensions. Cross-reference the part number with the latest Renesas documentation to confirm current production status and any potential obsolescence notices before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component when designing systems requiring three independent regulated rails from a single controller unit. It is suitable for applications needing synchronized phase shifting to reduce input ripple current. Verify that the required output currents and voltage ranges fall within the specified operational limits of the integrated PWM controllers.

DC DC Switching Controllers Part Context

The ISL9444 belongs to the Intersil/Renesas portfolio of power management ICs, originally developed under the Intersil brand before acquisition by Renesas Electronics Corporation. This series targets high-efficiency power conversion solutions for consumer electronics and telecommunications infrastructure, providing compact integration for complex multi-voltage requirements.