TPS51125 51125 TPS 51125 IC 24-pin QFN

The TPS51125 51125 TPS 51125 IC 24-pin QFN is a cost-effective dual synchronous buck controller designed for notebook power systems. It integrates 5 V and 3.3 V LDOs, requires minimal external components, and delivers high efficiency with fast transient response. The device supports 5.5 V–28 V input, 2 V–5.5 V output, and features a 270 kHz VCLK for external charge pumps. Adaptive on-time D-CAP™ control ensures stable, low-noise operation. Available in a compact 24-pin QFN package, it operates from –40 °C to 85 °C.

The TPS51125 51125 TPS 51125 IC 24-pin QFN is a dual synchronous buck controller designed for notebook power systems, offering a wide input voltage range of 5.5 V to 28 V and output voltages from 2 V to 5.5 V. It features built-in 100-mA 5-V and 3.3-V LDOs, a 1% 2-V reference output, and selectable Out-of-Audio™ mode for light-load or PWM-only operation. The IC includes an internal 1.6-ms voltage servo soft-start, adaptive on-time control with four selectable frequency settings, 4500 ppm/°C RDS(on) current sensing, built-in output discharge, power-good output, and protection features including OVP, UVP, OCP, and thermal shutdown. Available in a 24-pin QFN (RGE) package, it ensures reliable, compact, and efficient laptop power management.