Overview
The LTM4622IV#PBF from Analog Devices Inc. is a dual 2.5A step-down switching mode power µModule (power module) regulator. This component is designed to provide a compact and efficient power supply solution in a tiny ultrathin package, measuring 6.25mm × 6.25mm × 1.82mm for the LGA package and 6.25mm × 6.25mm × 2.42mm for the BGA package. The module includes the switching controller, power FETs, inductor, and other necessary support components, making it a complete power supply solution with minimal external components required.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3.6 to 20 | V |
| Output Voltage Range | 0.6 to 5.5 | V |
| Output Current (Continuous) | Dual 2.5A, Single 5A | A |
| Output Current (Peak) | 3A | A |
| Switching Frequency | 1 MHz (default) | Hz |
| Operating Temperature Range | –40°C to 125°C | °C |
| Storage Temperature Range | –55°C to 125°C | °C |
| Peak Solder Reflow Body Temperature | 260°C | °C |
Key Features
- Dual 2.5A or single 5A step-down DC/DC µModule regulator
- Compact ultrathin package (LGA and BGA options)
- High efficiency design with minimal external components required
- Programmable output voltage via external resistors (0.6V to 5.5V)
- Selectable Burst Mode operation
- Integrated controlled on-time valley current mode regulator, power MOSFETs, inductor, and support components
- Low minimum on-time and off-time (20 ns and 45 ns respectively)
- Internal soft-start time of 400 to 700 µs
Applications
The LTM4622IV#PBF is suitable for a variety of applications requiring compact and efficient power supply solutions. These include:
- Industrial and medical devices
- Telecommunications equipment
- Automotive systems
- Embedded systems and IoT devices
- Any application requiring dual or single high-current step-down DC/DC conversion with high efficiency and minimal footprint.
Q & A
- What is the input voltage range of the LTM4622IV#PBF?
The input voltage range is from 3.6V to 20V.
- What is the output voltage range of the LTM4622IV#PBF?
The output voltage range is from 0.6V to 5.5V, set by external resistors.
- What is the maximum continuous output current of the LTM4622IV#PBF?
The maximum continuous output current is dual 2.5A or single 5A.
- What is the default switching frequency of the LTM4622IV#PBF?
The default switching frequency is 1 MHz.
- What is the operating temperature range of the LTM4622IV#PBF?
The operating temperature range is from –40°C to 125°C.
- Does the LTM4622IV#PBF require many external components?
No, it requires only a few ceramic input and output capacitors.
- Can the output voltage be programmed?
- What is the minimum on-time and off-time of the LTM4622IV#PBF?
The minimum on-time is 20 ns and the minimum off-time is 45 ns.
- What is the internal soft-start time of the LTM4622IV#PBF?
The internal soft-start time is 400 to 700 µs.
- What are some typical applications of the LTM4622IV#PBF?
Typical applications include industrial and medical devices, telecommunications equipment, automotive systems, and embedded systems.
