Overview
The LTM4630IY, produced by Analog Devices Inc., is a dual 18A or single 36A output switching mode step-down DC/DC µModule (micromodule) regulator. This module integrates the switching controllers, power FETs, inductors, and all supporting components into a single package. It operates from an input voltage range of 4.5V to 15V and can provide two outputs, each with an output voltage range of 0.6V to 1.8V, programmable via external resistors. The LTM4630IY is designed for high efficiency and fast transient response, making it suitable for powering high-current devices such as FPGAs, ASICs, and processors.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage | 4.5 | 15 | V | |
| Output Voltage Range | 0.6 | 1.8 | V | |
| Output Current per Channel | 18 | A | ||
| Single Output Current | 36 | A | ||
| Switching Frequency | 400 | 780 | 750 | kHz |
| Maximum Total DC Output Error (LTM4630-1A) | ±0.8% | |||
| Maximum Total DC Output Error (LTM4630-1B) | ±1.5% | |||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | BGA | |||
| Number of Pins | 144 |
Key Features
- Dual 18A or single 36A output capability
- Wide input voltage range: 4.5V to 15V
- Output voltage range: 0.6V to 1.8V, set by external resistors
- High efficiency design with fast transient response
- Current mode control and internal feedback loop compensation
- Adjustable switching frequency from 400kHz to 750kHz
- Frequency synchronization and multiphase parallel current sharing
- Overcurrent foldback protection and overvoltage protection
- Onboard temperature diode for device temperature monitoring
- Differential remote sense amplifier
- ROHS compliant
Applications
- Powering FPGAs, ASICs, and processors
- Data center and cloud computing infrastructure
- High-performance computing and storage systems
- Telecommunications and networking equipment
- Industrial and medical devices requiring high current and precision voltage regulation
Q & A
- What is the input voltage range of the LTM4630IY?
The input voltage range is from 4.5V to 15V.
- What are the output voltage and current capabilities of the LTM4630IY?
The LTM4630IY can provide two outputs, each with a voltage range of 0.6V to 1.8V and a current of up to 18A per channel, or a single output of up to 36A.
- What is the typical switching frequency of the LTM4630IY?
The typical switching frequency is 780kHz, but it can be programmed from 400kHz to 750kHz.
- Does the LTM4630IY support multiphase operation?
- What kind of protection features does the LTM4630IY have?
The device includes overcurrent foldback protection and overvoltage protection.
- How is the output voltage set on the LTM4630IY?
The output voltage is set via external resistors.
- Is the LTM4630IY ROHS compliant?
- What is the operating temperature range of the LTM4630IY?
The operating temperature range is from -40°C to 125°C.
- What package types are available for the LTM4630IY?
The LTM4630IY is available in a 144-pin BGA package.
- Does the LTM4630IY have onboard temperature monitoring?
