The LTM4661IY is a synchronous step-up switching mode μModule® (power module) regulator in a 6.25mm × 6.25mm × 2.42mm BGA package. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage of 1.8V to 5.5V, down to 0.7V after start-up, the LTM4661IY regulates an output voltage of 2.5V to 15V set by an external resistor. It provides up to 4A switch current. Only bulk input and output capacitors are needed.The LTM4661IY 1MHz switching frequency and dual phase single output architecture enable fast transient response to line and load changes and a significant reduction of output ripple voltage. It supports frequency synchronization, PolyPhase® operation and selectable Burst Mode operation. The LTM4661IY features a true output disconnect during shutdown and inrush current limit at start-up. It also has short-circuit, overvoltage and overtemperature protection.The LTM4661IY is Pb-free and RoHS compliant.
Feature
- Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB)
- Input Voltage Range: 1.8V to 5.5V, Down to 0.7V After Start-Up
- Output Voltage Range: 2.5V to 15V
- 4A Switch Current
- Dual Phase Operation
- ±3% Maximum Total DC Output Voltage Regulation Over Load, Line and Temperature
- Output Disconnect in Shut Down
- Inrush Current Limit
- External Frequency Synchronization
- Selectable Burst Mode® Operation
- Output Overvoltage and Overtemperature Protection
- 6.25mm × 6.25mm × 2.42mm BGA package
Applications
- RF Microwave Power Amplifiers
- Battery Powered DC Motors
- 3.3V Bus Telecom Transceivers
