Overview
The LTM4668AIY#PBF is a quad DC/DC step-down µModule regulator produced by Analog Devices Inc. This device is designed to provide high-performance power management with multiple output channels. Each output can deliver up to 1.2A of DC current, and the outputs can be paralleled to achieve a combined current capability of up to 4.8A. The LTM4668A operates over an input voltage range of 2.7V to 17V and supports an output voltage range of 0.6V to 5.5V, making it versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 2.7 | 17 | V | |
| Output Voltage Range | 0.6 | 5.5 | V | |
| Output Current per Channel | 1.2 | A | ||
| Combined Output Current | 4.8 | A | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | 49-pin BGA | |||
| Package Dimensions | 6.25mm × 6.25mm × 2.1mm |
Key Features
- Quad DC/DC step-down µModule regulator with configurable output array.
- Each output can deliver up to 1.2A of DC current, with the ability to parallel outputs for up to 4.8A combined current capability.
- Operating over an input voltage range of 2.7V to 17V and supporting an output voltage range of 0.6V to 5.5V.
- Includes switching controllers, power FETs, inductors, and support components within the package.
- Supports frequency synchronization, PolyPhase operation, selectable Burst Mode operation, 100% duty cycle, and low IQ operation.
- High switching frequency and current mode architecture for fast transient response to line and load changes.
- Fault protection features include overvoltage, overcurrent, and other protections.
Applications
- Telecom and networking equipment.
- Industrial equipment.
- Multi-rail point of load regulation.
- FPGAs, DSPs, and ASICs.
Q & A
- What is the input voltage range of the LTM4668AIY#PBF?
The input voltage range is from 2.7V to 17V. - What is the maximum output current per channel?
Each output can deliver up to 1.2A of DC current. - Can the outputs be paralleled for higher current capability?
Yes, the outputs can be paralleled to achieve a combined current capability of up to 4.8A. - What is the operating temperature range of the LTM4668AIY#PBF?
The operating temperature range is from -40°C to 125°C. - What package type and dimensions does the LTM4668AIY#PBF come in?
The package type is a 49-pin BGA, with dimensions of 6.25mm × 6.25mm × 2.1mm. - What are some key features of the LTM4668AIY#PBF?
Key features include frequency synchronization, PolyPhase operation, selectable Burst Mode operation, 100% duty cycle, and low IQ operation. - What applications is the LTM4668AIY#PBF suitable for?
It is suitable for telecom and networking equipment, industrial equipment, multi-rail point of load regulation, and FPGAs, DSPs, and ASICs. - Does the LTM4668AIY#PBF include built-in fault protection features?
Yes, it includes fault protection features such as overvoltage and overcurrent protection. - What is the typical efficiency of the LTM4668AIY#PBF?
The efficiency can vary based on the input and output conditions but generally offers high efficiency due to its current mode architecture and high switching frequency. - Is the LTM4668AIY#PBF pin compatible with other models?
Yes, it is pin compatible with the LTM4668 model.
