VPS2107

VPS2107 is a highly integrated power control chip suitable for various topologies (Flyback \ Boost \ Buck) and output voltage feedback methods (SSR \ PSR \ resistive voltage division). PSR feedback can be achieved at operating frequencies of hundreds of KHz, and the built-in output voltage sampling circuit can work simultaneously in CCM and DCM modes, with a requirement for a sampling voltage time width as low as 400nS; The built-in loop compensation circuit with fast dynamic response function ensures excellent stability and dynamic response indicators of the switching power supply. VPS2107 integrates multiple control functions and has a simple peripheral design, allowing for the design of peripheral parameters according to actual needs. Three functions are achieved through a resistor: startup, feedforward compensation, and programming of the built-in power transistor's turn off speed; The peak current of the power transistor is sampled through a resistor programmed "lossless" current sampling; Two resistors can be used to simultaneously design input undervoltage protection and input overvoltage protection thresholds. VPS2107 integrates functions such as over power protection, output short circuit protection, output overvoltage protection, and over temperature protection. It can achieve self recovery in case of abnormal situations and maximize the reliability of the switching power supply system.