The LTM®4623 from Linear Technology is a complete 3 A step-down switching mode μModule (micromodule) regulator in a tiny ultra-thin 6.25 mm × 6.25 mm × 1.82 mm LGA package. Included in the package are the switching controller, power FETs, inductor, and support components. Operating over an input-voltage range of 4 V to 20 V or 2.375 V to 20 V with an external bias supply, the LTM4623EVPBF supports an output-voltage range of 0.6 V to 5.5 V, set by a single external resistor. Its high-efficiency design delivers 3 A continuous output current. Only ceramic input and output capacitors are needed. The LTM4623EVPBF supports selectable discontinuous-mode operation and output-voltage tracking for supply rail sequencing. Its high-switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability. Fault protection features include overvoltage, overcurrent, and overtemperature protection. The LTM4623EVPBF is RoHS compliant with Pb-free finish. Extra solutions: LTM4623EVPBF Full size image
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
