SY8009A

SY8009A/SY8009B High Efficiency 1.5MHz/1MHz, 1.5A/2A Synchronous Step Down Regulator General Description The SY8009A and SY8009B are high-efficiency, high frequency synchronous step-down DC-DC regulator ICs capable of delivering up to 1.5A/2A output currents. The SY8009 family operate over a wide input voltage range from 3V to 5.5V and integrate main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with greater than 1MHz switching frequency. Features Low RDS(ON) for internal switches (top/bottom) SY8009A: 180mΩ/120mΩ, 1.5A, SOT23-5 SY8009B:100mΩ/80mΩ,2.0A SOT23-6, SSOT23-6 3-5.5V input voltage range High switching frequency minimizes the external components SY8009A: 1.5MHz SY8009B: 1MHz Internal softstart limits the inrush current 100% dropout operation RoHS Compliant and Halogen Free Compact package: SOT23-5, SOT23-6 and Super SOT23-6 are pin-compatible. Other packages are available upon requests Ordering Information SY8009□(□□)□ Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number SY8009AAAC SY8009BABC SY8009BEBC Package type SOT23-5 SOT23-6 SSOT23-6 Note① 1.5A 2A 2A Applications LCD TV Set Top Box Net PC Mini-Notebook PC Access Point Router Typical Applications 96 ON/ OFF VIN IN CIN GND FB R2 LX R1 C1(opt.) COUT L VOUT 94 VOUT=1.8V EN 92 Efficiency (%) 90 88 86 84 82 80 ...