Summary of LTM4623 – Ultrathin 20VIN, 3A Step-Down DC/DC Module Regulator
The LTM4623 is an ultrathin, complete 3A step-down DC/DC µModule regulator. It features a wide input voltage range from 4V to 20V and supports external bias down to 2.375V. The device offers output voltages between 0.6V and 5.5V with high accuracy and fast transient response. Key capabilities include low EMI compliance, current sharing for multiphase operation, and comprehensive protection against overvoltage, overcurrent, and overtemperature conditions.
Parts used in the LTM4623 Project:
- Single-Sided PCB
- Dual-Sided PCB
- LTM4623 Regulator
- External Bias Source
Features
- <2mm Height, Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB)
- Wide Input Voltage Range: 4V to 20V
- Input Voltage Down to 2.375V with External Bias
- 0.6V to 5.5V Output Voltage
- 3A DC Output Current
- ±1.5% Maximum Total DC Output Voltage Error
- Current Mode Control, Fast Transient Response
- Low EMI EN55022 Class B Compliant
- External Frequency Synchronization
- Multiphase Operation with Current Sharing
- Output Voltage Tracking
- Selectable Discontinuous Mode
- Power Good Indicator
- Overvoltage, Overcurrent and Overtemperature Protection
- Ultrathin 6.25mm × 6.25mm × 1.82mm LGA Package
For more detail: LTM4623 – Ultrathin 20VIN, 3A Step-Down DC/DC μModule Regulator
- What is the maximum height of this solution?
The height is less than 2mm. - Can the input voltage go as low as 2.375V?
Yes, but only when using an external bias. - Does the device support multiphase operation?
Yes, it supports multiphase operation with current sharing. - How does the output voltage error compare?
The maximum total DC output voltage error is ±1.5%. - Is the device compliant with EMI standards?
Yes, it is Low EMI EN55022 Class B Compliant. - What package type does the LTM4623 use?
It uses an Ultrathin 6.25mm × 6.25mm × 1.82mm LGA Package. - Does the regulator offer power good indication?
Yes, it includes a Power Good Indicator. - Can the switching frequency be synchronized externally?
Yes, it supports External Frequency Synchronization.
