SY7208

SY7208/SY7208B High Efficiency 1MHz, 2A Step Up Regulator General Description The SY7208 and SY7208B are high efficiency boost regulators targeted for general step-up applications. SY7208B incorporates input over-voltage protection and turn off the regulator when the input voltage exceeds 7V. Features wide input range: 3-25V bias input, 25Vout max 1MHz switching frequency Minimum on time: 100ns typical Minimum off time: 100ns typical Low Rdson: 0.2ohm Programmable softstart: SY7208B 7V input OVP protection: SY7208B Accurate Reference: ο SY7208, 0.6VREF ο SY7208B: 1VREF Compact package: SOT23 6 pins Ordering Information SY7208□(□□)□ Temperature Code C: - 40°C~85°C Package Code: AB: SOT23-6 Spec Code None: 0.6 VREF B: 1VREF Applications WLED Drivers Networking cards powered from PCI or PCIexpress slots Typical Applications L VIN IN1,2 LX CIN GND FB SS VOUT R1 COUT R2 Fig. 1 Typical Schematic Diagram SY7208/B Rev. # 0.6 Silergy Corp. Confidential- Prepared for Customer Use Only 1 Free Datasheet http://www.0PDF.com SY7208/SY7208B Pinout (SOT23-6 top view) LX GND FB 1 2 3 6 5 4 NC IN EN LX GND FB 1 2 3 6 5 4 IN1 IN2 SS (SY7208) (SY7208B) Top Mark: CAxyz for SY7208 BLxyz for sy7208B (Device code: CAfor SY7208 and BL for SY7208B, x=year code, y=week code, z=Wafer lot number code) Pin Name IN(SY7208) IN1,2(SY7208B) GND LX FB SOT23-6 5 6,5 2 1 3 Pin Description Input pin. Decouple this pin to GND pin with 1uF ceramic cap. Input pins. Decouple th...