LM2657
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SNVS342B – JANUARY 2005 – REVISED MARCH 2013
LM2657 Dual Synchronous Buck
Regulator Controller
Check for Samples: LM2657
FEATURES
1
•2 Input Voltage Range from 4.
5V to 28V • Synchronous Dual-Channel Interleaved
Switching • 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 • Under-Voltage Lockout • Over-Voltage/Under-Voltage Protection • Soft-Start • Switching Frequency Adjustable 200kHz-
500kHz • 28-Pin TSSOP Package
APPLICATIONS
• Low...