ISL41387IRZ

ISL41387IRZ is a DC-DC switching regulator controller from Intersil (now Renesas). It’s used to generate stable low-voltage rails from a higher input in power-management applications (e.g., CPUs, ASICs, embedded systems). The IRZ suffix denotes the package type.
What it does: it regulates output by driving external power MOSFETs in a buck (step-down) topology, coordinating switching, feedback, and protection features to meet a set output voltage.
Common features (variant-dependent): adjustable output voltage, current-mode control, enable/disable, soft-start, overcurrent protection, undervoltage lockout, and thermal protection. It typically requires external components such as an inductor, input/output capacitors, and a rectifier (or relies on synchronous FETs if used with a synchronous topology).
For exact specs—input voltage range, maximum output current, switching frequency, efficiency, and pinout—consult the specific ISL41387IRZ datasheet and application notes. If you have a particular application, I can help map the requirements to the part’s features.

ISL41387IRZ uses an 8-pin Small Outline Integrated Circuit (SOIC-8) package, RoHS-compliant.

- Pin count: 8 pins (ISL IRZ package, typically an 8‑pin SOIC)
- Function: DC-DC buck regulator controller. It provides PWM/current‑mode control to regulate an input voltage down to a stable output by driving external components (external MOSFET, inductor, etc.), including features like enable, soft-start, and feedback.

The ISL41387IRZ is manufactured by Renesas Electronics (the Intersil brand). Renesas is a Japanese multinational semiconductor company that specializes in analog, mixed-signal, and power-management ICs for automotive, industrial, and consumer markets.

ISL41387IRZ is used for isolated DC‑DC power designs. Typical applications:
- Isolated DC‑DC converters and point‑of‑load regulators
- Telecom/datacom power modules (front‑end and post‑regulation)
- Industrial automation/robotics power supplies
- Medical devices requiring galvanic isolation
- High‑efficiency server/storage power systems and other isolated PMICs

To give exact cross-references, I need the device function and specs. ISL41387IRZ from Intersil could be a DC-DC regulator, PMIC, charger, etc. Please provide:
- device type (DC-DC regulator, battery charger, supervisor)
- input range, output voltage/current
- switching frequency
- package
With that I can offer precise equivalents (e.g., from TI, Analog Devices, Onsemi, etc.).