Overview
The LTM4644IY-1#PBF, produced by Analog Devices Inc., is a quad DC/DC step-down µModule (micromodule) regulator. This device is part of the LTM4644/LTM4644-1 series, designed to provide high efficiency and versatility in power management. Each output channel can deliver up to 4A of continuous current, with the capability to parallel outputs for up to 16A. The module includes switching controllers, power FETs, inductors, and support components, making it a comprehensive solution for various power requirements.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Input DC Voltage (VIN) | 4 | 14 | V | ||
| Output Voltage Range (VOUT) | 0.6 | 5.5 | V | ||
| Output Current per Channel | 4A (continuous), 5A (peak) | A | |||
| Operating Temperature Range | -40°C | 125°C | °C | ||
| Package Type | BGA-77 | ||||
| Dimensions | 15mm x 9mm x 5.01mm | mm | |||
| Weight | 1.9g | g |
Key Features
- Quad DC/DC step-down µModule regulator with 4A per output channel
- Outputs can be paralleled for up to 16A capability
- High efficiency design with fast transient response
- Current mode control with pulse width modulation (PWM)
- Internal temperature sensing diode output
- External frequency synchronization capability
- Overvoltage, current, and temperature protection
- Output voltage tracking and adjustable output voltage range from 0.6V to 5.5V
Applications
The LTM4644IY-1#PBF is suitable for a variety of applications, including:
- Powering multiple voltage rails in high-density systems
- Interface with PMBus power system management supervisory ICs such as the LTC2975
- Industrial and commercial power systems requiring high efficiency and reliability
- Telecommunications and networking equipment
- High-performance computing and data storage systems
Q & A
- What is the input voltage range of the LTM4644IY-1#PBF?
The input voltage range is from 4V to 14V, or 2.375V to 14V with an external bias supply.
- How much output current can each channel deliver?
Each output channel can deliver up to 4A of continuous current, with a peak current of 5A.
- Can the outputs be paralleled for higher current?
- What is the operating temperature range of the LTM4644IY-1#PBF?
- What type of package does the LTM4644IY-1#PBF come in?
- Does the LTM4644IY-1#PBF include internal feedback resistors?
- What are some key protection features of the LTM4644IY-1#PBF?
- Can the LTM4644IY-1#PBF be synchronized with an external frequency?
- What is the typical efficiency of the LTM4644IY-1#PBF?
- Is the LTM4644IY-1#PBF RoHS compliant?
- What are the dimensions of the LTM4644IY-1#PBF package?
