Overview
The LTM4680IY, produced by Analog Devices Inc., is a highly advanced dual 30A or single 60A step-down µModule® (power module) DC/DC regulator. This device features remote configurability and telemetry-monitoring of power management parameters over PMBus, an open standard I2C-based digital interface protocol. The LTM4680IY integrates digitally programmable analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors, and supporting components. It is designed to provide high efficiency and versatility in power conversion, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4.5V to 16V |
| Output Voltage Range | 0.5V to 3.3V |
| Maximum Output Current | Dual 30A or Single 60A |
| Efficiency | Up to 90% full load efficiency from 12VIN to 1VOUT at 60A |
| Output Error | ±0.5% maximum DC output error over temperature |
| Current Readback Accuracy | ±2.5% (25°C to 125°C) |
| Switching Frequency | Programmable up to 710kHz |
| Package | BGA-144 |
| Operating Temperature Range | -40°C to +125°C |
Key Features
- Dual 30A or single 60A step-down µModule regulator with digital power system management.
- Remote configurability and telemetry-monitoring of power management parameters over PMBus.
- Digitally programmable analog control loops and precision mixed-signal circuitry.
- Integrated input current sense amplifier and power MOSFETs.
- Programmable switching frequency up to 710kHz.
- Voltage margining, fault logging, and monitoring features.
- Precision readback of input and output voltages, currents, and temperatures.
- Supports telemetry polling rates up to 125Hz.
- Constant frequency current mode control architecture for excellent transient response.
Applications
- Telecommunications equipment.
- Datacom and networking systems.
- Industrial control and automation systems.
- Medical equipment and devices.
- Reliability assessment and monitoring.
- Data-driven decision making and quality control.
Q & A
- What is the input voltage range of the LTM4680IY?
The input voltage range is from 4.5V to 16V.
- What are the maximum output currents for the LTM4680IY?
The LTM4680IY can provide dual 30A or single 60A output currents.
- What is the output voltage range of the LTM4680IY?
The output voltage range is from 0.5V to 3.3V.
- What is the efficiency of the LTM4680IY at full load?
The efficiency can be up to 90% from 12VIN to 1VOUT at 60A.
- How accurate is the current readback of the LTM4680IY?
The current readback accuracy is ±2.5% over the temperature range from 25°C to 125°C.
- What is the switching frequency range of the LTM4680IY?
The switching frequency is programmable up to 710kHz.
- What package type is the LTM4680IY available in?
The LTM4680IY is available in a BGA-144 package.
- What are some key features of the LTM4680IY's digital power system management?
Key features include remote configurability, telemetry-monitoring, voltage margining, fault logging, and precision readback of power parameters.
- What are some typical applications of the LTM4680IY?
Typical applications include telecommunications, datacom, industrial control, and medical equipment.
- How does the LTM4680IY support system monitoring and control?
The LTM4680IY supports precision readback of input and output voltages, currents, and temperatures, and it also features telemetry polling rates up to 125Hz.
