Overview
The LTM4678IY#PBF from Analog Devices Inc. is a highly advanced DC-DC power module designed to meet the demanding power management needs of modern electronic systems. This μModule (Micro Module) regulator integrates a digital power system management feature, making it an ideal choice for applications requiring precise control and high power density. The module operates within a frequency of 350kHz and is housed in a compact 144-pin BGA (Ball Grid Array) package, ensuring a small footprint while delivering robust power management capabilities.
The device supports a wide input voltage range from 4.5V to 16V and can manage output currents up to 25A per channel in dual configuration or up to 50A in a single output configuration, with an output voltage range from 0.5V to 3.4V. Its operating temperature range from -40°C to 125°C makes it suitable for harsh environments.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | LTM4678IY#PBF |
| Package | BGA-144 |
| Input Voltage Range | 4.5V to 16V |
| Output Voltage Range | 0.5V to 3.4V |
| Output Current | Dual: up to 25A per channel, Single: up to 50A |
| Operating Frequency | 350kHz |
| Operating Temperature Range | -40°C to 125°C |
| Interface | 400kHz PMBus-compliant I²C serial interface |
| ADC Resolution | 16-bit ∆Σ ADC |
| DC Output Error | ±0.5% maximum over temperature |
Key Features
- Dual 25A or single 50A output configuration
- Wide input voltage range from 4.5V to 16V and output voltage range from 0.5V to 3.4V
- Integrated digital power system management with PMBus-compliant I²C serial interface
- Constant frequency current mode control and pulse-width modulation (PWM)
- Sub-milliohm DCR current sensing and integrated input current sense amplifier
- Digital soft-start/stop ramp and programmable analog loop
- Parallel and current share capability up to 250A
- Compliance with RoHS standards and tin/silver/copper (Sn/Ag/Cu) terminal finishes
Applications
- Computing and Data Storage: Suitable for voltage regulation in servers and storage units, enhancing stability and reliability in high-performance computing and data centers.
- Financial Technology (Fintech): Ideal for equipment such as ATMs, mobile payment devices, and high-speed trading systems, ensuring stable and efficient power supplies during critical financial transactions.
- Electronic Manufacturing: Useful in the manufacturing of electronic components and systems, providing precise power supplies for testing and assembly processes.
Q & A
- What is the LTM4678IY#PBF?
The LTM4678IY#PBF is a dual 25A or single 50A μModule (Micro Module) regulator with integrated digital power system management from Analog Devices Inc.
- What is the input voltage range of the LTM4678IY#PBF?
The input voltage range is from 4.5V to 16V.
- What are the output current capabilities of the LTM4678IY#PBF?
The device can manage output currents up to 25A per channel in dual configuration or up to 50A in a single output configuration.
- What is the operating temperature range of the LTM4678IY#PBF?
The operating temperature range is from -40°C to 125°C.
- What interface does the LTM4678IY#PBF use for communication?
The device uses a 400kHz PMBus-compliant I²C serial interface.
- Is the LTM4678IY#PBF RoHS compliant?
Yes, the LTM4678IY#PBF is RoHS compliant and uses tin/silver/copper (Sn/Ag/Cu) terminal finishes.
- What are some typical applications of the LTM4678IY#PBF?
Typical applications include computing and data storage, financial technology (fintech), and electronic manufacturing.
- What is the package type of the LTM4678IY#PBF?
The device is housed in a 144-pin BGA (Ball Grid Array) package.
- Does the LTM4678IY#PBF support parallel and current sharing?
Yes, it supports parallel and current sharing up to 250A.
- What is the maximum DC output error of the LTM4678IY#PBF over temperature?
The maximum DC output error is ±0.5% over temperature.
