LM2854 Description
The LM2854 PowerWise™ buck regulator is a 500kHz or 1-MHz step-down switching voltage regulator capable of driving up to a 4-A load with exceptional power conversion efficiency, line and load regulation, and output accuracy. The LM2854 can accept an input voltage rail between 2.95 V and 5.5 V, and deliver an adjustable and highly accurate output voltage as low as 0.8 V. Externally established softstart with a small...
LM2854 Key Features
- 1 Input Voltage Range of 2.95 V to 5.5 V
- Maximum Load Current of 4 A
- Wide Bandwidth Voltage Mode Control Loop
- Fixed Switching Frequency of 500 kHz or 1 MHz
- 35-mΩ Integrated MOSFET Switches
- Adjustable Output Voltage Down to 0.8 V
- Optimized Reference Voltage Initial Accuracy and
- External Soft-Start Control With Tracking
- Enable Pin With Hysteresis
- Low Standby Current of 230 µA
LM2854 Applications
- Low Voltage POL Regulation from 5-V or 3.3-V Rail
- Local Solution for FPGA/DSP/ASIC/µP Core or I/O Power