Overview
The LTM4626IY from Analog Devices Inc. is a highly integrated 12A step-down switching mode µModule (micromodule) regulator. It is packaged in a compact 6.25mm × 6.25mm × 3.87mm BGA package, incorporating the switching controller, power FETs, inductor, and other necessary support components. This module operates over an input voltage range of 3.1V to 20V and supports an output voltage range of 0.6V to 5.5V, adjustable via a single external resistor. The LTM4626IY is designed for high efficiency and can deliver up to 12A of continuous output current, making it suitable for a variety of applications requiring precise and reliable power management.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.1 to 20 | V |
| Output Voltage Range | 0.6 to 5.5 | V |
| Output Current | Up to 12 | A |
| Switching Frequency | 600 kHz (default) | Hz |
| Package Dimensions | 6.25mm × 6.25mm × 3.87mm | mm |
| Output Voltage Error | ±1.5% (max) | % |
| Protection Features | Overvoltage, Overcurrent, Overtemperature |
Key Features
- High efficiency design with up to 12A continuous output current
- Selectable discontinuous mode operation and output voltage tracking for supply rail sequencing
- Current mode control with fast transient response to line and load changes
- External frequency synchronization and multiphase parallel current sharing with multiple LTM4626s
- Power Good indicator and fault protection features including overvoltage, overcurrent, and overtemperature protection
- Differential remote sensing amplifier for precise output voltage regulation
- Compact BGA package suitable for space-constrained applications
Applications
The LTM4626IY is suitable for various applications requiring high current and precise voltage regulation, including:
- Telecom and Datacom equipment
- Networking equipment
- Industrial equipment
- Space-constrained power supply designs where a complete solution in less than 1cm² (single-sided PCB) or 0.5cm² (dual-sided PCB) is necessary
Q & A
- What is the input voltage range of the LTM4626IY?
The input voltage range is from 3.1V to 20V.
- What is the maximum output current of the LTM4626IY?
The maximum output current is up to 12A.
- How is the output voltage adjusted on the LTM4626IY?
The output voltage is adjustable via a single external resistor.
- What are the key protection features of the LTM4626IY?
The key protection features include overvoltage, overcurrent, and overtemperature protection.
- Can the switching frequency of the LTM4626IY be adjusted?
Yes, the switching frequency can be adjusted using external resistors and can be externally synchronized to a clock within ±30% of the set frequency.
- What is the default switching frequency of the LTM4626IY?
The default switching frequency is 600 kHz.
- Does the LTM4626IY support multiphase operation?
Yes, it supports multiphase parallel current sharing with multiple LTM4626s.
- What type of package does the LTM4626IY come in?
The LTM4626IY comes in a 6.25mm × 6.25mm × 3.87mm BGA package.
- What is the maximum output voltage error of the LTM4626IY?
The maximum output voltage error is ±1.5%.
- What are some typical applications for the LTM4626IY?
Typical applications include telecom, datacom, networking, and industrial equipment, as well as space-constrained power supply designs.
