Overview
DCDC1V8RH is radiation hardened 3.3V to 1.8V regulated DC-DC power converter suitable for utilizing regulated Point-of-Loads (PoL) either for FPGA and microprocessors at board level design or as an embedded IP in large SoC and ASICs. The PWM IP core is also particularly suited for reducing the 3.3V voltage available at the periphery of 3.3V ASICs to 1.8V for powering the low voltage digital cells in the core. It is based on a classical linear duty-cycle modulated PWM controller in combination with two external MOSFET switches to implement a synchronous rectifying buck converter topology. It uses a minimum number of external components to regulate the output voltage in the voltage feedback error control mode. The extraordinary high switching frequency of 12 MHz allows the reduction of the external output capacitance and inductance values at least by a factor of ten compared to conventional PWM DC-DC converter solutions based on a similar topology.
Features