LTM4620MPY#PBF

The LTM4620MPY#PBF is Analog Devices’ LTM4620 dual 2‑phase, multiphase buck regulator in an MPY Pb‑free package. It combines two interleaved synchronous buck regulators, gate drivers, control logic, and a PMBus digital interface in one device, aimed at high‑current, low‑voltage rails (e.g., CPU/GPU cores).
Key points
- Two adjustable low‑voltage rails with shared/dedicated phase control; high current capability.
- PMBus control for voltage programming, frequency selection, remote sensing, and fault reporting.
- Integrated MOSFETs, drivers, protection features (OC, thermal shutdown), and soft‑start.
- Package/code: MPY denotes the specific package variant; PBF indicates Pb‑free packaging.
Typical use
- VRMs for CPUs/GPUs, FPGAs, and other high‑performance core rails requiring compact, efficient DC‑DC conversion.
Note
- For exact electrical specs (input range, output voltage range, total current, PMBus commands), consult the LTM4620 datasheet and product page.

Do you mean a drop‑in, pin‑compatible replacement or functionally equivalent parts? If functional, please provide input voltage range, output voltages and max current per rail, package/pin constraints, and whether you need PMBus/telemetry. With that I can list close equivalents (ADI/Linear, TI, Murata, RECOM, TDK) tailored to your specs.

Key features of LTM4620MPY#PBF (summary):
- PMBus/I2C digital control and telemetry for monitoring and programming
- Multi-output synchronous buck regulator with integrated MOSFETs
- Independent output voltages per channel with programmable voltage and sequencing
- Remote sense and droop compensation for accurate regulation
- Current sharing and fault management across outputs
- Comprehensive protections: input undervoltage/overvoltage, output overcurrent/short-circuit, thermal shutdown
- Soft-start, fault reporting with status/power-good signaling
- Telemetry of Vout, Iout, Vin, and temperature
- High efficiency and fast transient response
- Pb-free (PBF) package variant MPY
Note: For exact channel count, voltage ranges, and timing specs, please consult the latest datasheet.

Pin count: 36-ball LGA/BGA (MPY) package.
Function (concise): The LTM4620MPY#PBF is a dual synchronous step‑down (buck) μModule DC/DC regulator that integrates controllers, MOSFETs, inductors and compensation. Its pins provide VIN (power inputs), SW (switching nodes), VOUT (regulated outputs), GND/PGND and exposed thermal pad, INTVCC, RUN/SS (enable/soft‑start), MODE/SYNC (operation mode and external clock), TRACK/PG (tracking/power‑good), ISET/COMP (current/loop programming and compensation) and monitoring/housekeeping pins (PGOOD/VMON).

Manufacturer: Analog Devices, Inc. (the LTM4620 was originally a Linear Technology µModule product; Linear Technology is now part of Analog Devices).
What kind of company: Analog Devices is an American multinational semiconductor company that designs and manufactures analog, mixed-signal and power-management integrated circuits and modules (including µModule power solutions) for industrial, communications, automotive and consumer applications.

LTM4620MPY#PBF is a multi‑rail μModule regulator. Typical application areas include:
- Multi‑rail POL supplies for CPUs/GPUs/SoCs in servers and workstations
- Data centers and HPC power distribution
- Networking and telecom equipment needing tight regulation and fast transient response
- Storage controllers and NVMe/SSD power rails
- FPGAs, ASICs, and other high‑performance electronics requiring several low‑voltage rails
- Industrial automation, robotics, and edge computing systems
- Embedded systems with compact, high‑current power needs
Note: designed for high current, efficient, compact DC‑DC power delivery.

LTM4620MPY#PBF uses the LTM μModule packaging – a fully enclosed μModule (LGA-style) DC-DC regulator. The “PBF” suffix indicates Pb-free (RoHS-compliant).