LTM4656IY

LTM4656IY is a μModule DC-DC regulator from Analog Devices’ LTM family. It is a highly integrated buck regulator in a single compact package that combines the controller, power MOSFETs, inductor, and essential support components. It provides a regulated output from a given input range with high efficiency and fast transient response, plus built‑in protections (overcurrent, overvoltage, thermal, etc.). The IY suffix denotes a specific package variant/pin-out. By integrating the regulator, it reduces board area and design time compared with discrete solutions and is well suited for point‑of‑load rails for CPUs, GPUs, FPGAs, ASICs, servers, telecom, and industrial equipment. For exact electrical specifications (input range, output voltage, current capability, efficiency, protections), consult the official datasheet and product page.

Do you mean direct drop-in equivalents (pin‑ and footprint‑compatible) or functionally similar replacements? I can list exact cross‑references or comparable µModule regulators once you confirm which type you need.

Here are typical features of the LTM4656IY (µModule DC-DC regulator):
- PMBus-enabled, digitally controlled multi-output DC-DC regulator
- Integrates regulator controller, power MOSFETs, inductor, and required passives (no external inductor)
- Multiple output rails with sequencing and margining capabilities
- Remote sense and accurate output voltage regulation
- Programmable via PMBus: VOUT, slew rate, soft-start, margins, sequencing, and fault reporting
- Robust safety protections: UVLO, OVP, OCP/short-circuit, over-temperature with latch/lockout
- High efficiency in a compact package suitable for dense boards
- Industrial-grade operating range and reliability for FPGAs/CPUs, ASICs, and telecom applications
Note: exact output count, voltage ranges, and PMBus commands vary by revision; consult the datasheet for precise specifications of the LTM4656IY variant.

I don’t have the exact LTM4656IY pinout memorized. I can fetch the official datasheet and give a concise summary (pin count, package type, and each pin’s function). Would you like me to retrieve that now?

The LTM4656IY is manufactured by Analog Devices, Inc. (originally a Linear Technology product line; Linear Technology was acquired by Analog Devices in 2017). Analog Devices is an American multinational semiconductor company that designs and supplies high-performance analog, mixed-signal and power-management integrated circuits (including µModule power regulators), data converters, amplifiers and RF components for industrial, automotive, communications and consumer applications.

- High-current multi-phase VRMs for CPU/GPU/FPGA core rails in servers, workstations, and high-end GPUs.
- Telecom and networking equipment requiring multiple regulated rails.
- Data-center power systems and enterprise servers with PMBus control and monitoring.
- Storage systems and industrial equipment needing robust, efficient DC-DC conversion.
- Embedded/edge computing and POL (point-of-load) applications requiring programmable, low-noise power.
Note: Uses include PMBus-controlled, high-efficiency DC-DC regulation for demanding, multi-rail power architectures.

The LTM4656IY is an Analog Devices μModule regulator packaged in a BGA (ball‑grid array) μModule package. See the LTM4656 datasheet for exact ball count, dimensions and land pattern.