RT7235-RT7236-RT7239-RT7240,PDF数据表下载

RT7235-RT7236-RT7239-RT7240 pdf资料下载The RT7235/36/39/40 is a synchronous step-down DC/ DC converter with Advanced Constant On-Time (ACOTTM) mode control. It achieves high power density to deliver up to 5A output current from a 4.5V to 18V input supply. The proprietary ACOTTM mode offers an optimal transient response over a wide range of loads and all kinds of ceramic capacitors, which allows the device to adopt very low ESR output capacitor for ensuring performance stabilization. In addition, RT7235/36/39/40 keeps an excellent constant switching frequency under line and load variation and the integrated synchronous power switches with the ACOTTM mode operation provides high efficiency in whole output current load range. Cycle-by-cycle current limit provides an accurate protection by a valley detection of low side MOSFET and external soft-start setting eliminates input current surge during startup. Protection functions include thermal shutdown for RT7235/36/39/40, output Under Voltage Protection (UVP) / Over Voltage Protection (OVP) for RT7235/36. When the UVP/OVP is triggered, the device will enter latch mode for TSSOP-14 (Exposed Pad), and hiccup mode for WDFN-10L 3x3. RT7235GCP RT7235GQW RT7239GSP RT7236GCP RT7236GQW RT7240GSPDatasheet pdf资料数据表下载