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ISL8033IRZ-T

Name: ISL8033IRZ-T
Rating: 4.7 (12 reviews)

IC REG BUCK ADJ 3A DL 24QFN

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製造商。部分 #ISL8033IRZ-T
包 QFN-EP-24
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規格

Package	Tape & Reel (TR)
ProductStatus	Active
Function	Step-Down
OutputConfiguration	Positive
Topology	Buck
OutputType	Adjustable
NumberofOutputs	2
Voltage-Input(Min)	2.85V
Voltage-Input(Max)	6V
Voltage-Output(Min/Fixed)	0.8V
Voltage-Output(Max)	6V
Current-Output	3A
Frequency-Switching	1.1MHz
SynchronousRectifier	Yes
OperatingTemperature	-55°C ~ 125°C (TJ)
MountingType	Surface Mount
Package/Case	24-VFQFN Exposed Pad

概述

Description

ISL8033IRZ-T is a small, high-efficiency DC-DC buck regulator IC from Intersil (Renesas) used to generate a stable, low-voltage rail from a higher input in portable and embedded systems. The device integrates the regulator control circuitry in an 8-pin IRZ package and is designed to work with external components (inductor, output capacitors, and a catch diode if using a non-synchronous topology). It supports adjustable or fixed output via an external feedback network and includes features such as enable, soft-start, overcurrent protection, and thermal shutdown. Typical applications include point-of-load power for CPUs, GPUs, FPGAs, memory, and other digital ICs in consumer, portable, industrial, and telecom equipment. The -T suffix indicates tape-and-reel packaging for automated assembly.

Features

ISL8033IRZ-T is a high-efficiency buck regulator. Key features typically include:
- 3 A switching regulator with integrated MOSFETs
- Wide input voltage range suitable for 2.3–5.5 V class rails
- Adjustable output via external feedback network (0.8 V to ~3.3 V; fixed outputs available)
- High efficiency with fast transient response (PWM/current‑mode control)
- Enable/shutdown input
- Power-Good/status output
- Protections: overcurrent/short-circuit, thermal shutdown, undervoltage lockout
- Soft-start to limit inrush
- Small package: ISL8033IRZ in IRZ (8‑pin) format; -T denotes Tape & Reel
Note: exact voltage ranges, switching frequency, and package options are in the datasheet; -T indicates tape-and-reel packaging.

Package

The ISL8033IRZ-T is supplied in an 8‑lead μSOP (US8) package and shipped on tape-and-reel.

Manufacturer

The ISL8033IRZ-T is manufactured by Renesas Electronics (originally branded Intersil; Renesas acquired Intersil in 2017). Renesas is a global Japanese semiconductor company that designs and manufactures microcontrollers, analog and power-management ICs, automotive and industrial semiconductors, and other integrated circuit solutions.

Application

ISL8033IRZ-T is a high-efficiency synchronous buck regulator used as a point‑of‑load power solution. Typical applications: core/regulator rails for CPUs/GPUs/ASICs and FPGAs; embedded systems; consumer and industrial electronics; telecom/network equipment; servers/storage/datacom gear; and portable devices needing low-voltage, high-current rails.

Equivalent

I can’t reliably list equivalents without the ISL8033IRZ-T’s exact specs. Please confirm: output voltage (fixed or adjustable), max output current, input voltage range, package, dropout/quiescent-current requirements, and needed features (enable, power-good, noise). With those I’ll give matched replacement parts from TI, ST, ON Semiconductor, Microchip, and Analog Devices.