The LTM4623IV#PBF is a complete 3A step-down switchingmode μModule (micromodule) regulator in a tiny ultrathin6.25mm × 6.25mm × 1.82mm LGA and 6.25mm × 6.25mm× 2.42mm BGA packages. Included in the package are theswitching controller, power FETs, inductor and supportcomponents. Operating over an input voltage range of4V to 20V or 2.375V to 20V with an external bias supply,the LTM4623IV#PBF supports an output voltage range of 0.6V to5.5V, set by a single external resistor. Its high efficiencydesign delivers 3A continuous output current. Only ceramicinput and output capacitors are needed.
The LTM4623IV#PBF supports selectable discontinuous modeoperation and output voltage tracking for supply rail sequencing.Its high switching frequency and current modecontrol enable a very fast transient response to line andload changes without sacrificing stability.
Fault protection features include overvoltage, overcurrentand overtemperature protection.
The LTM4623IV#PBF is available with SnPb (BGA) or RoHScompliant terminal finish.
Feature
- <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 and (6.25mm × 6.25mm × 2.42mm) BGA Package
Applications
- PCIe and Backside PCB Mounting
- Telecom, Datacom, Networking and Industrial Equipment
- Data Storage Rack Units and Cards
