WMSIC Electronic Components

RENESAS ISL8033IRZ

ModelISL8033IRZ
PackageQFN-24(4x4)
BrandRENESAS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Option 160209

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
RENESAS ISL8033IRZ
Type
RENESAS
Minimum package
750 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RENESAS
Electronic Component
ISL8033IRZ
Electronic Component
1
Package
QFN-24(4x4)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.001g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0265847431
Operating Temperature
55℃~+125℃@(TJ)
Operating Voltage
2.85V~6V
Switching Frequency
1.1MHz
Electronic Component
Electronic Component
Output Voltage
800mV~6V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

ISL8033IRZ 产品概述

一、功能概述

ISL8033IRZ 是一款降压型开关稳压器,属于可调输出的同步整流降压式开关稳压器器件。器件内置功率开关,支持工作电压范围 2.85V 至 6V,输出电压可由 0.8V 调整至 6V,适合为点对点供电和多路电源管理场景提供高效率、紧凑尺寸的电源解决方案。开关频率为 1.1MHz,支持高频率下采用小型外部被动元件,便于空间受限的板级设计。

二、主要规格

  • 功能类型:降压型(Buck)
  • 输入电压:2.85V ~ 6V
  • 输出电压:0.8V ~ 6V(可调)
  • 输出通道数:2 路独立输出
  • 输出电流:每通道最高 3A(受封装热性能与 PCB 散热条件影响)
  • 开关频率:1.1MHz
  • 同步整流:是(内置同步整流开关,提高转换效率)
  • 工作结温度:-55℃ ~ +125℃(TJ)
  • 开关管:内置功率开关
  • 封装:QFN-24(4×4 mm)含裸露焊盘,便于散热

三、封装与热管理

ISL8033IRZ 采用 4 mm × 4 mm 的 QFN-24 封装并带裸露焊盘(exposed pad),通过将裸露焊盘焊接到 PCB 大面积接地平面并配合多层散热过孔,可以显著降低结温、提升持续大电流输出能力。在高功率近限工作时,应做好热仿真与板级散热设计,必要时增加铜厚或散热层以保证器件在 TJ 允许范围内长期可靠工作。

四、典型应用

  • 嵌入式与便携式设备的点对点电源(CPU/FPGA/ASIC 供电)
  • 通信与网络设备的局部电源(Point-of-load)
  • 工业控制模块与传感器供电
  • 多通道电源管理与分支电源需求场景

五、设计与布局建议

  • 输入电源与开关节点的走线尽量短、粗,靠近器件放置输入电容和输出电容,减少回流环路面积以降低 EMI。
  • 裸露焊盘必须焊接至 PCB 接地平面,通过多孔(vias)连接上下层散热铜箔,提高热传导能力。
  • 输出电感建议选用低 DCR、具有足够电流裕量的功率电感;在 1.1MHz 工作频率下常用 0.5µH~2.0µH 范围,根据占空比和纹波要求调整。
  • 采用低 ESR 输出电容(如陶瓷)以降低输出纹波,必要时并联少量铝电解或钽电容改善稳定性与瞬态响应。
  • 反馈网络应远离开关噪声源,走线尽量短并回流至器件参考地,保证输出电压精度与稳定性。

六、选型与注意事项

在选择 ISL8033IRZ 作为电源管理解决方案时,应结合目标系统的最大输出电流、热预算以及 PCB 面积进行综合评估。若系统要求长期满载运行,需验证板级散热能力并参考厂商参考设计和布局示意图。采购时注意选择原厂或授权分销渠道,确保器件为真品并获取对应数据手册与应用笔记以指导最终电路设计。

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