ISL8500IRZ

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ISL8500IRZ

+BOM

SWITCHING REGULATOR, VOLTAGE-MOD

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Specifications

Attribute Value
Package / Case Bulk
Part Status Active
Function Step-Down
Output Configuration Positive
Topology Buck
Output Type Adjustable
Number of Outputs 1
Voltage - Input (Min) 4.5V
Voltage - Input (Max) 25V
Voltage - Output (Min/Fixed) 0.6V
Voltage - Output (Max) 19V
Current - Output 2A
Frequency - Switching 500kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount

Overview

Description

ISL8500IRZ is an 8-pin Intersil/Renesas buck controller (not a power stage) used to build DC-DC converters. It drives external MOSFETs and works with inductors and capacitors to regulate a high-efficiency power rail, such as CPU/GPU memory voltages or other embedded supplies. Key features typically include fixed/programmable switching frequency, current-mode PWM control, soft-start, enable input, feedback-based output regulation, and protections such as overcurrent (current limit), undervoltage, and overvoltage. It’s packaged in an IRZ (8-pin, RoHS-compliant) package.
Common use: design a custom VRM by pairing the ISL8500IRZ with external MOSFETs, inductor, and passive components.
Note: exact electrical specs (voltage range, frequency, accuracy, protection thresholds) vary by revision. For precise details, consult the ISL8500IRZ datasheet and application notes.

Features

ISL8500IRZ features (concise):
- Dual high-side/low-side gate driver for synchronous buck power stages
- Wide input voltage range (up to ~60 V)
- Bootstrap-ready high-side drive with non-overlapping outputs
- Independent enable/shutdown for each channel
- Undervoltage lockout on both channels
- Overcurrent/short-circuit protection and thermal shutdown
- Internal dead-time control to prevent shoot-through
- Low quiescent current; available in 8-pin IRZ package
Note: For exact electrical characteristics and pinout, refer to the latest Renesas/Intersil datasheet.

Pinout

Pin count: 8 pins (MSOP-8/SO-8 package).
Function: A high-efficiency buck (step-down) switching regulator used to generate a regulated output rail from Vin, with features such as enable, feedback, and soft-start.

Manufacturer

- Manufacturer: Renesas Electronics Corporation (Intersil brand; ISL prefixes are from the former Intersil, now part of Renesas).
- What kind of company: A Japanese multinational semiconductor company that designs and manufactures analog, mixed-signal, and power-management ICs, microcontrollers, and other semiconductor solutions.

Application

ISL8500IRZ is a high-efficiency DC-DC buck regulator used for power-management tasks. Typical application areas include:
- Portable/battery-powered devices (smartphones, wearables, handhelds)
- Computers and peripherals (laptops, motherboards, CPU/GPU core rails)
- Data communications (routers, switches, NICs)
- Automotive electronics (body electronics, infotainment, ADAS)
- Industrial/IoT systems (sensors, motor drives, PLCs)
- Enterprise/embedded power supplies and other compact DC-DC applications

Package

ISL8500IRZ is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package.

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