Texas Instruments TPS40100 Wide Input Range Synchronous Buck Controller for Sequencing TPS40100RGET

The TPS40100RGET is a synchronous buck controller designed for a wide input voltage range of 4.5 V to 18 V. It features programmable closed-loop soft-start, under-voltage lockout (UVLO) with adjustable hysteresis, and a programmable current limit for inductor sensing. The device supports frequency synchronization to other timebases and offers adjustable switching frequencies between 100 kHz and 600 kHz. This controller is suitable for applications such as servers, networking equipment, and telecommunications. It includes internal gate drivers for N-channel MOSFETs, a 5 V internal regulator, and provides output margining capabilities. The TPS40100RGET is housed in a 24-pin QFN package and operates over a temperature range of -40¬8C to 85¬8C. Key features include thermal shutdown, programmable overcurrent protection, and a power good indicator, making it a versatile choice for power supply designs requiring sequencing and margining.