LM2657 Overview
The LM2657 is an adjustable 200kHz-500kHz dual channel voltage-mode controlled high-speed synchronous buck regulator controller ideally suited for high current applications. The LM2657 requires only N-channel FETs for both the upper and lower positions of each stage.
LM2657 Key Features
- 2 Input Voltage Range from 4.5V to 28V
- Synchronous Dual-Channel Interleaved
- Forced-PWM or Pulse-Skip Modes
- Lossless Bottom-Side FET Current Sensing
- Adaptive Duty Cycle Clamp
- High Current N-Channel FET Drivers
- Low Shutdown Supply Current
- Reference Voltage Accurate to within ±1.5%
- Output Voltage Adjustable Down to 0.6V
- Power Good Flag and Chip Enable
