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                                      SY20313A - High Efficiency 5.5V, Dual 1A, 2MHz Synchronous Step Down Regulator

                                      Features

                                      •  Input range: 2.5V to 5.5V
                                      • 2MHz switching frequency
                                      • 180° out of phase operation
                                      • Output current:1Aper channel
                                      • +/-1% DC output voltage accuracy at forced PWM mode
                                      • Low Quiescent Current: <35uA when both channels are enabled
                                      • Low RDS(ON) for internal switches (PFET/NFET):220m?/180m?
                                      • Internal softstart
                                      • 100% dropout operation
                                      • RoHS Compliant and Halogen Free
                                      • Compact package: DFN3x3-10

                                      Typical Application

                                      Description

                                      The SY20313A is a dual-output, high efficiency 2MHz synchronous step down DC-DC regulator IC, capable of delivering up to1A output current each output channel. The SY20313A operates over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

                                      The SY20313A can operate in two different modes by controlling the MODE pin. For low noise applications SY20313A can be forced into fixed frequency PWM mode by pulling this pin high. For power saving applications, SY20313A can enter the variable frequency operation to maintain high efficiency at light load by pulling this pin low.

                                      Applications

                                      ·         SSD

                                      ·         Cell Phones

                                      ·         Digital Cameras

                                      ·         PDAs

                                      ·         Portable Media Players

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