4.7V to 17V Input, 5A Synchronous Buck Regulator with I2C Interface
Features
- Wide VIN Range: 4.7V to 17V
- Maximum Continuous Output Current: 5A
- I2C Control Interface
- Programmable Output Voltage from 0.8V to 5.5V
- Integrated High / Low-Side FETs (65mΩ / 35mΩ)
- Advanced Adaptive On-Time Control
- Fast Transient Response
- ±0.5% Feedback Voltage Reference
- Zero Shutdown Supply Current
- 50μA Non-Switching Operating Quiescent Current
- 80μA No Load Operating Quiescent Current
- High Efficiency in Light Load and Heavy Load.
- Programmable Switching Frequency with 500kHz, 1MHz, 1.5MHz, and 2MHz options
- Internal Soft-Start
- Programmable Forced CCM, Automatic CCM/PFM
- Built-in Cycle-by-Cycle Current Limit, Short Circuit Protection, Input UVLO, Output Under-Voltage Protection, Output Over-Voltage Protection, and Thermal Shutdown Protection
- Small 20-bump WLCSP (1.7mm x 2.0mm)
Applications
- CPU, GPU, AP, DSP, FPGA, VIO, VSYS
- HDD, LPDDR3, LPDDR4 Memory Power
- Tablets, Netbooks, Ultra-Books, Mobile Internet Devices, IoT, and Server.
- DSC, Drones, Gaming Consoles, TV Set Box
Key Electrical Specifications
| Vin (Min) | Vin (Max) | Switching Frequency (MHz) | Output Auto-Discharge | VOUT | Max IOUT Current (A) | Package |
| 4.7V | 17V | Adj 0.5/1.0/1.5/2.0MHz | Yes | 0.8V to 5.5V | 5.0 | WLCSP45-20 1.7mm x 2.0mm |
Typical Application Diagram
