ISL62870HRUZ-T

ISL62870HRUZ-T is a multi-rail buck regulator controller from Renesas Intersil used to implement CPU/GPU VRMs and other multi-output power rails. It provides multiple PWM channels with current‑mode control, programmable switching frequency, remote sensing, and fault protections (UVLO, OVP, OCP, thermal shutdown). The device drives external MOSFETs via gate-output pins and requires external components (no integrated power MOSFETs). The HRUZ-T suffix indicates a RoHS-compliant package variant with typical industrial temperature range. Typical applications include CPU core and memory power rails, GPUs, and other multi-output power supplies in servers, desktops, and telecom equipment. For exact channel count, pinout, and programming details, consult the datasheet.

ISL62870HRUZ-T is a multi‑phase PWM controller and gate driver for VRMs. Key features include:
- Drives external MOSFETs (high-side and low-side) for multi-phase buck converters
- Current-mode control with slope compensation and programmable current limit
- Programmable switching frequency and soft-start/voltage tracking
- Remote sense inputs for precise output regulation
- Robust protection: overcurrent/short-circuit, overvoltage, undervoltage, and thermal shutdown
- Fault reporting with latch and configurable enable/disable control
- Power-on reset and sequencing options for safe power-up
- RoHS-compliant packaging (HRUZ-T) suitable for tape-and-reel
Note: For exact electrical parameters (ranges, pinout, timing, and Programming specifics), refer to the official datasheet.

Pin count: 28-pin (QFN-style package).
Function: Multi-rail PWM controller for DC-DC voltage regulator modules (VRMs); drives multiple buck regulators and handles sequencing, feedback, and regulation for multi‑rail power systems.

Manufacturer: Intersil (now Renesas Intersil, part of Renesas Electronics Corporation).
What kind of company: A semiconductor company that designs and manufactures analog, mixed-signal, and power-management integrated circuits.

ISL62870HRUZ-T is a multi-rail, multi-phase DC-DC regulator controller designed for high-current VRMs. Applications include:
- CPU/GPU core and SoC voltage regulation
- FPGA/ASIC power rails
- Memory and chipset VRMs
- Server, data-center and telecom power subsystems
- Embedded and industrial equipment needing multiple tightly regulated rails with fast transient response
It supports multiple phases for high current per rail and flexible sequencing for complex power architectures.

ISL62870HRUZ-T comes in a 16-pin QFN package (4x4 mm) with an exposed pad; tape-and-reel packaging.