SY7088DGC

 www.szyucan.com  Application Note: SY7088 2.3V Minimum Input and 5.5V Maximum Output 3A Peak Current Synchronous Boost with Output Disconnect Preliminary Specification General Description SY7088 is a high efficiency synchronous boost regulator that converts up to 5.5V output voltage. It adopts NMOS for the main switch and PMOS for the synchronous switch. It can disconnect the output from input during the shutdown mode. Ordering Information SY7088 □(□□)□ Tempera ture Code Packa ge Code Optiona l Spec Code Ordering Number Package type SY7088DGC DFN2x3-8 Note ---- Features 2.3-5.0V input voltage range Adjustable output voltage from 2.5V to 5.5V Pseudo-constant frequency: 1MHz 3A peak current limit Input under voltage lockout Load disconnect during shutdown Output over voltage protection Low RDS(ON) (main switch/synchronous switch) at 5.0V output: 70/100mohm Compact package: DFN2x3-8 Applications All Single Cell Li or Dual Cell Battery Operated Products as MP-3 Player, PDAs, and Other Portable Equipment. Typical Applications Figure 1. Schematic Diagram Figure 2. Efficiency Figure AN_SY7088 Rev.0.1A 1 Pinout (top view)  www.szyucan.com  SY7088 (DFN2x3-8) Top mark: VTxyz (Device code: VT, x=year code, y=week code, z= lot number code) Name LX EN SGND FB IN OUT PGND DFN2x3-8 1, 2 3 4 5 6 7, 8 9 Description Inductor node. Connect an inductor between IN pin and LX pin. Enable pin. Internal integrated with 1Mohm pull down resistor. Signal ground p...