LTM4620MPY

LTM4620MPY is a high-density, dual-output µModule DC-DC converter from Analog Devices (Linear Technology). It integrates the switching regulators, power MOSFETs, controller, inductor, and required passives into a single compact package, simplifying board layout and BOM.
Key features (typical):
- Dual synchronous buck regulators with multiphase capability
- Programmable output voltages via external feedback resistors
- Remote sensing, soft-start/sequencing, and overcurrent/overtemperature protection
- Digital monitoring/control options (PMBus/SMBus interfaces on some variants)
- Wide input range and high efficiency for power rails in CPUs, GPUs, and telecom/industrial systems
Package/variant:
- LTM4620MPY denotes a specific packaging option within the LTM4620 family (compact µModule form factor)
Who it’s for:
- Designers needing fast time-to-market, compact VRMs, and reliable multi-rail power for modern ASICs and processors.
For exact electrical specs, pinout, and interface options, refer to the LTM4620MPY datasheet on Analog Devices’ website.

LTM4620MPY features (summary):
- Four-channel, synchronous buck regulator in a single µModule package.
- Fully integrated power stage, inductor, and control circuitry.
- PMBus/I2C digital interface for programming, monitoring, sequencing, margining, and fault reporting.
- Independent outputs with adjustable voltages; remote sense for accurate load regulation.
- Wide input voltage range suitable for 4.5V–28V systems.
- High efficiency with low quiescent current; compact footprint; easy thermal management.
- Robust protections: overcurrent/short-circuit, overvoltage, undervoltage, thermal shutdown.
- Soft-start, sequencing, and enable control per channel.
- Fault/Pgur status outputs and diagnostics via PMBus.
- RoHS-compliant µModule packaging; suitable for dense power designs.

Pin count: 40 pins (MPY package, µModule style). Function: A dual synchronous buck regulator module with integrated high‑current FETs, providing two independent outputs from a common input. Includes pins for input, outputs, feedback, enable, remote sensing, power‑good, and digital control (I2C/PMBus) as specified in the datasheet. Note: exact pinout can vary by revision; consult the LTM4620MPY datasheet for the precise pin mapping.

- Manufacturer: Analog Devices, Inc. (the LTM family originated from Linear Technology, now part of Analog Devices).
- What kind of company: A global semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits, including power-management products like μModule regulators.

LTM4620MPY is a multi-output µModule PMBus DC-DC regulator. It provides several low-voltage rails from a single higher input with high efficiency and compact size, ideal for digitally controlled power delivery. Typical applications:
- CPU/FPGA/GPU core rails in servers, data centers, HPC
- ASIC/DSP rails in networking, telecom, storage
- Industrial automation, robotics, and motor-drive power
- Automotive and aerospace ECUs requiring compact, reliable PMBus power
- Medical instrumentation and lab equipment needing precise, programmable rails
- Embedded/edge compute boards and workstation motherboards

Package type: μModule (micro‑module) package, LGA-style bottom-contact with no external leads.