Το εταιρικό blog για An In-Depth Analysis of the ADI LTM4675 Dual-Channel 9A / Single-Channel 18A μModule Digital Power Regulator

Shenzhen Mingjiada Electronics Co., Ltd. is an authorized supplier of genuine ADI products and a distributor of electronic components in stock. We consistently supply the ADI LTM4675, supporting bulk orders and sample requests. All products are genuine, with a stable supply chain, and are suitable for the development of industrial, communications, and server power supply solutions.

LTM4675 Product Overview

The ADI LTM4675 is a dual-channel 9A buck μModule (micro-module) DC/DC regulator capable of parallel operation with a total current output of 18A. It integrates PMBus digital power management functionality and features a built-in inductor, power MOSFETs, control loop, EEPROM, and a 16-bit ADC. As a highly integrated power module, it requires minimal external components, significantly shortening power supply development cycles. It supports remote configuration, telemetry monitoring, and fault logging, making it the preferred choice for high-density digital power supplies.

LTM4675 Specifications

- Input voltage range: 4.5V–17V

- Output voltage range: 0.5 V to 5.5 V

- Channel configuration: Dual independent 9 A channels; maximum 18 A per channel in parallel

- Output accuracy: DC output error of ±0.5% across the full temperature range

- Current readback accuracy: ±2.5% at a 9 A load

- Communication Interface: PMBus-compatible I²C, 400 kHz, with built-in 16-bit ΔΣ ADC

- Telemetry Refresh Rate: Up to 125 Hz

- Control Mode: Fixed-frequency current-mode control

- Package: 108-pin BGA, dimensions 16 mm × 11.9 mm × 3.51 mm

- Operating Temperature: -40°C to 125°C

- Power-Up Time: Up to 70 ms

- Additional Features: Current sharing across multiple modules in parallel, EEPROM fault logging, output timing control, overvoltage, undervoltage, and overtemperature protection

- Pin Compatibility: Compatible with LTM4676A and LTM4677, facilitating system upgrades and replacements

LTM4675 Product Features

1. Highly integrated μModule solution with power devices, inductors, and control circuitry fully integrated, simplifying PCB layout and enhancing power density

2. Dual architecture combining an analog fast control loop and PMBus digital management, balancing transient response speed with digital monitoring capabilities

3. High-precision voltage, current, and temperature telemetry; real-time readout of input/output parameters, peak value logging, fault alerts, and runtime

4. Programmable soft-start, output margin adjustment, and power-up sequencing to accommodate multi-rail power supply synchronized power-up requirements

5. Supports current sharing via parallel connection of multiple modules for flexible output current scaling to accommodate high-power loads

6. Built-in EEPROM with ECC error correction, which retains fault logs during power loss, facilitating power system debugging and troubleshooting

7. Wide-voltage input, compatible with mainstream industrial and telecommunications power buses such as the 12V bus

8. RoHS-compliant BGA package with excellent thermal performance, suitable for high-density board designs Analog Dev...

LTM4675 Application Scenarios

- Power supplies for data communication, telecommunications switches, and optical transmission equipment boards

- Multi-rail digital power supplies for servers and storage devices

- Power supplies for FPGAs, ASICs, and high-speed processors

- Power supply systems for industrial automation and industrial control boards

- Power supplies for medical devices and precision test and measurement instruments

- Auxiliary power supply for high-end embedded and AI computing boards

- High-power, high-density power supply solutions requiring remote monitoring and fault diagnosis

Supply Information

Shenzhen Mingjiada Electronics Co., Ltd. offers ADI LTM4675 in stock—genuine, original products. We provide samples, small-batch, and bulk orders, and also purchase factory obsolete stock and surplus electronic components, offering one-stop electronic component services.

Contact Information

Mobile: +86 13410018555 (Mr. Chen)

Email: sales@hkmjd.com

Address: Rooms 1239-1241, Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province

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