Description
The CS5124/6 is a fixed frequency current mode controller designed specifically for DC-DC converters found in the telecommunications industry. The CS5124/6 integrates many commonly required current mode power supply features and allows the power supply designer to realize substantial cost and board space savings.

Features
■ Line UVLO Monitoring
■ Low Current Sense Voltage for Resistive Current Sensing
■ External Synchronization to Higher or Lower Frequency Oscillator (CS5126 Only)
■ Bias for Start up Circuitry (CS5124 Only)
■ Thermal Shutdown
■ Sleep On/Off Pin
■ Soft Start Timer
■ Leading Edge Blanking
■ Direct Optocoupler Interface
■ 90ns Propagation Delay
■ 35ns Driver Rise and Fall Times
■ Sleep Mode