This document is the datasheet of CS5124/6 DC-DC converter, which introduces the features, applications, pin definition of the model.
The CS5124/6 is a fixed frequency current mode controller designed specifically for DC-DC converters found in the telecommunications industry. It integrates many commonly required current mode power supply features, allowing designers to realize substantial cost and board space savings. The product matrix includes the CS5124 with a 400kHz oscillator and Veras pin, and the CS5126 with a 200kHz oscillator and SYNC pin.
| Supply Range | 7.7V to 20V |
|---|---|
| Package Type | 8 pin SO narrow |
| Operating Frequency (CS5124) | 400kHz |
| Operating Frequency (CS5126) | 200kHz |
| First Current Sense Threshold (CS5124) | 195mV |
| First Current Sense Threshold (CS5126) | 335mV |
| Operating Junction Temperature | -40 to 135°C |
| Thermal Shutdown Temperature | 135°C |
The device has a supply range of 7.7V to 20V.
It integrates an internal oscillator, slope compensation, sleep on/off, under voltage lock out, thermal shutdown, soft start timer, and leading edge current blanking.
The SYNC pin is used for clock synchronization in the CS5126 model.