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ISL83491IBZ-T

Name: ISL83491IBZ-T
Rating: 4.7 (12 reviews)

IC TRANSCEIVER FULL 1/1 14SOIC

製造商
製造商。部分 #ISL83491IBZ-T
包 14-SOIC (0.154, 3.90mm Width)
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規格

Supplier	Renesas Electronics America Inc
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Type	Transceiver
Protocol	RS422, RS485
NumberofDrivers/Receivers	1/1
Duplex	Full
ReceiverHysteresis	50 mV
DataRate	10Mbps
Voltage-Supply	3V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	14-SOIC (0.154, 3.90mm Width)

概述

Description

ISL83491IBZ‑T is a high‑performance digital multi‑phase DC‑DC buck regulator controller from Intersil (now Renesas). It drives external MOSFETs to generate core and other rails for modern processors, memory, and high‑density POLs in servers, workstations, telecom, and embedded systems. The device provides a digitally tuned control loop, supports multiple phases, and offers programmable output voltage and switching frequency, along with protections and monitoring. Typical features include current/voltage sensing, over/under voltage protection, overcurrent/thermal protection, fault reporting, and configurable compensation for optimized transient response and efficiency. The “IBZ” denotes the package type and “‑T” signifies tape‑and‑reel packaging. Applications: CPU/GPU VRMs, memory rails, and other high‑quality, high‑density power rails requiring precise regulation and robustness. For exact electrical specs and pinout, consult the current datasheet.

Features

ISL83491IBZ-T features (typical for this device family)
- Single-channel buck regulator with integrated high-side switch
- Input voltage range: 2.7 V to 5.5 V
- Adjustable output via external feedback network (Vout typically programmable from ~0.8 V up)
- Output current capability in the hundreds of mA range (design-dependent)
- Fixed-frequency PWM operation with light-load mode option
- Enable/shutdown input
- Soft-start on enable
- Protection: cycle-by-cycle current limit, over-temperature protection, and undervoltage lockout
- Power-Good/reset/status indication
- Small 8-pin package (IBZ) with Tape & Reel option (T)
- RoHS-compliant; requires external inductor and catch diode (or can be designed for a synchronous path per application)
Note: exact output voltage range, current capability, and switching frequency depend on the exact external components and configuration. For precise specs, refer to the official datasheet.

Package

ISL83491IBZ-T uses a 16-pin QFN package (exposed pad) and is shipped in Tape & Reel.

Pinout

Pin count: 28 pins (ISL83491IBZ-T in its standard package).
Function: Dual synchronous buck regulator controller with integrated power MOSFETs, intended for CPU core VRMs. Provides two-phase PWM regulation, switching-frequency control, voltage feedback, current limit, soft-start, enable, and power-good features.

Manufacturer

- Manufacturer: Intersil (now a brand/subsidiary of Renesas Electronics).
- What kind of company: A semiconductor company specializing in analog, mixed-signal, and power-management ICs. Renesas acquired Intersil in 2017, and it operates as part of Renesas.

Application

- CPU/GPU/FPGA core voltage regulators (multi‑phase buck)
- Desktop/server VRMs and high‑density power rails
- SoCs, ASICs, and memory subsystems in data centers
- Telecom and networking equipment power supplies
- Embedded systems needing efficient point‑of‑load (POL) regulators
- General high‑efficiency, low‑noise buck regulation applications