Overview
The LTM4625IY#PBF is a high-efficiency, step-down DC/DC switching mode µModule (micromodule) regulator produced by Analog Devices Inc. This compact module is housed in a 6.25mm × 6.25mm × 5.01mm BGA package, making it ideal for space-constrained applications. The LTM4625 provides a complete solution for DC/DC conversion, integrating the switching controller, power MOSFETs, inductor, and other necessary components, requiring only bulk input and output capacitors for operation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 4V to 20V (down to 2.375V with external bias) |
| Output Voltage Range | 0.6V to 5.5V (adjustable via external resistor) |
| Output Current | Up to 5A |
| Output Voltage Error | ±1.5% maximum total DC output voltage error over line, load, and temperature |
| Switching Frequency | Default 1MHz, programmable up to 2MHz |
| Package Type | BGA-25 |
| Package Dimensions | 6.25mm × 6.25mm × 5.01mm |
| Operating Temperature Range | –40°C to 125°C |
| Compliance | RoHS compliant |
Key Features
- High efficiency design with fast transient response to line and load changes
- Current mode control with external frequency synchronization
- Multiphase parallel current sharing with multiple LTM4625s
- Output voltage tracking and selectable discontinuous mode operation
- Power good indicator and fault protection features including overvoltage, overcurrent, and overtemperature protection
- Integrated loop compensation for fast transient response
- Compact BGA package suitable for space-constrained applications
Applications
- Telecom, Datacom, and Networking Equipment
- Industrial Equipment
- Medical Diagnostic Equipment
- Data Storage Rack Units and Cards
- Test and Debug Systems
- Document Scanners and Industrial Instruments
- Communication Systems
Q & A
- What is the input voltage range of the LTM4625IY#PBF?
The input voltage range is from 4V to 20V, and it can operate down to 2.375V with an external bias supply.
- What is the adjustable output voltage range of the LTM4625IY#PBF?
The output voltage range is adjustable from 0.6V to 5.5V via a single external resistor.
- What is the maximum output current of the LTM4625IY#PBF?
The LTM4625IY#PBF can deliver up to 5A of continuous output current.
- What are the key protection features of the LTM4625IY#PBF?
The module includes overvoltage, overcurrent, and overtemperature protection.
- Can the switching frequency of the LTM4625IY#PBF be adjusted?
Yes, the switching frequency can be adjusted by external resistors, with a default frequency of 1MHz and programmable up to 2MHz.
- What is the package type and dimensions of the LTM4625IY#PBF?
The module is packaged in a BGA-25 package with dimensions of 6.25mm × 6.25mm × 5.01mm.
- Is the LTM4625IY#PBF RoHS compliant?
Yes, the LTM4625IY#PBF is RoHS compliant.
- What are some typical applications for the LTM4625IY#PBF?
Typical applications include telecom, datacom, networking and industrial equipment, medical diagnostic equipment, data storage rack units and cards, and test and debug systems.
- Does the LTM4625IY#PBF support multiphase operation?
Yes, it supports multiphase parallel current sharing with multiple LTM4625s.
- What is the operating temperature range of the LTM4625IY#PBF?
The operating temperature range is from –40°C to 125°C.
