company blog about Supply [ADI] LTM4633: Three-Output 10A Step-Down DC/DC μModule Regulator

As a professional component supplier with extensive experience in the ADI product line, Mingjiada Electronics provides the market with genuine, in-stock LTM4633 series products and full-cycle procurement support.

LTM4633 Product Overview

The LTM4633 μModule® (micro-module) regulator integrates three complete 10A switch-mode DC/DC converters into a single compact package. The package incorporates a switch controller, power FETs, inductors, and most supporting components. The three regulators in the LTM4633 operate from input voltage rails ranging from 4.7V to 16V or from 2.375V to 16V (using an external 5V bias). The VOUT1 and VOUT2 output ranges are 0.8 V to 1.8 V, while the VOUT3 output range is 0.8 V to 5.5 V. Each output is set by an external resistor.

A high switching frequency and current-mode architecture enable fast transient response to voltage and load changes without sacrificing stability. The device supports frequency synchronization, multiphase parallel operation of VOUT1 and VOUT2, soft-start, and output voltage tracking for power rail sequencing.

Fault protection features include overvoltage, overcurrent protection, and temperature monitoring. This power module is housed in a space-saving, thermally enhanced 15mm x 15mm x 5.01mm BGA package. The LTM4633 is RoHS-compliant and features a lead-free solder mask.

LTM4633 Product Features:

Three independent 10A DC output current regulator channels

Input voltage range: 4.7V to 16V

2.375 V to 16 V (with external 5 V bias)

VOUT1,2 voltage range: 0.8 V to 1.8 V

VOUT3 voltage range: 0.8 V to 5.5 V

±1.5% maximum total DC output error

Current-mode control / fast transient response

Frequency synchronization

Output overvoltage and overcurrent protection

Multiphase operation (current sharing on VOUT1 and VOUT2)

Universal temperature monitor

Soft-start / voltage tracking

Power-good monitor

15 mm × 15 mm × 5.01 mm BGA package

LTM4633 Product Applications:

Telecommunications, networking, and industrial equipment

High-density point-of-load regulation

Mingjiada’s Value Proposition: A stable procurement channel for genuine ADI LTM4633

Genuine Products and Model Coverage: Available models include mainstream package versions such as LTM4633EY, LTM4633IY, and LTM4633MPY, all sourced directly from ADI’s official channels to meet design selection requirements for different temperature grades and certifications. Complete quality traceability information is provided for each batch, supporting procurement scenarios across all stages from R&D prototyping to mass production ramp-up.

Immediate Availability and Small-Lot Flexibility. As a key component in high-density point-of-load power supplies, the LTM4633 often requires support for small quantities of diverse samples and rapid iteration during the project validation phase. Mingjiada supports small-lot sample procurement to shorten device lead times during the R&D phase; during mass production, we leverage our supply chain network to coordinate order fulfillment and inventory management, helping customers maintain production line rhythm despite fluctuating lead times.

Tags: LTM4633IY, LTM4633I, LTM4633