LM3557 固定频率、电流模式升压直流直流转换器 Pdf资料

应用功能： 固定频率、电流模式升压直流直流转换器 The LM3557 is a complete solution for white LED drive applications. With minimal external component count, no DC current leakage paths to ground, cycle-by-cycle current limitprotection, and output over-voltage protection circuitry, the LM3557 offer superior performance and cost savings over standard DC/DC boost component implementations.