ISL6612ACBZ-T

ISL6612ACBZ-T is a dual-channel, multiphase PWM controller from Renesas Intersil used to implement voltage regulator modules (VRMs) for CPUs/GPUs.
Key points:
- Dual PWM outputs driving external MOSFETs in a buck regulator; suitable for 2-phase or multiphase VRMs.
- Features current‑mode control with slope compensation, programmable switching frequency, and soft‑start.
- Protection and reliability: enable/UVLO, overcurrent/short-circuit protection, overvoltage/undervoltage lockout, thermal shutdown, and a power‑good indicator.
- Flexible feedback: supports direct voltage feedback or external sensing with PGOOD signaling; channels can be synchronized.
- Packaging: the -ACBZ-T suffix denotes the specific package/tape‑and‑reel variant of the IC.
Applications:
- CPU/GPU core voltage regulators in desktops, servers, and embedded systems.
- Any two‑phase or multiphase VRM requiring external MOSFETs, inductor, and input/output filtering.
Note:
- Exact electrical specs, pinout, and application details are in the datasheet. The IC requires external MOSFETs and passive components to form a complete regulator.

Here are the typical features of ISL6612ACBZ-T (dual multiphase buck regulator controller):
- Dual PWM controller with interleaved 2-phase operation for CPU VRMs
- Synchronous drive outputs for external high-side/low-side MOSFETs
- Current-mode control with two feedback paths (per-channel)
- Programmable switching frequency and dead-time
- Programmable soft-start/ramp for each channel
- Enable input and undervoltage lockout
- Overcurrent/short-circuit protection and overvoltage protection
- Thermal shutdown with fault latch
- Power-good/voltage-monitor outputs
- External clock synchronization option
- Fault/status reporting via open-drain pins
- Small 8-pin package (ACBZ) with tape-and-reel
Note: for exact electrical specs and pinout, please consult the official ISL6612 data sheet.

ISL6612ACBZ-T comes in a QFN package (28 pins) with a 4×4 mm body; the “-T” suffix indicates Tape & Reel packaging.

- Pin count: 16 pins (16‑pin package such as TSSOP/SOIC).
- Function: Dual-channel, voltage‑mode PWM controller with gate-drive outputs for external MOSFETs in a multiphase buck regulator (VRM), including feedback, reference, enable/soft-start, and protection features.

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

ISL6612ACBZ-T is a VRM controller for multi-phase buck regulators. Common applications include:
- CPU core voltage regulation on desktop/server motherboards
- GPU/graphics card VRMs
- FPGA/ASIC power rails in data centers and embedded systems
- Telecom and industrial DC-DC power supplies needing precise, efficient multi-phase regulation
- Other high-current, low-voltage VRMs in consumer electronics