Murata's MYMGK series of miniature, non-isolated “mono block” type, surface-mount, point-of-load (PoL) DC-DC converters are available in two models: a 6 Amp version and a 20 Amp version. Each version is available with two output voltage range options. Typical applications for these converters include powering FPGAs and CPUs used in data, telecommunications, and networking communications equipment, and in equipment using distributed bus architecture.

Measuring just 9.0 mm x 7.5 mm x 5.0 mm, the 6 Amp MYMGK1R806FRSR has a programmable output voltage in the range 0.7 V_DC to 1.8 V_DC from a +5 V_DC input. The MYMGK00506ERSR can also deliver up to 6 Amp output in the range 0.7 V_DC to 5.0 V_DC from a +12 V_DC nominal input.

The 20 Amp models measure 10.5 mm x 9.0 mm x 5.6 mm and include the MYMGK1R820FRSR, operating from a +5 V_DC nominal input, and the MYMGK1R820ERSR, operating from a +12 V_DC nominal. The output voltage can be programmed in the range 0.7 V_DC to 1.8 V_DC.

Across the range, control signals include remote on/off and a power good indicator. Safety and protection features include under voltage lock-out (UVLO), output short circuit, and output over-current.

The use of increasingly compute intensive devices such as programmable logic, FPGAs, and CPU is demanding highly reliable power supplies that can quickly respond to load variations, good transient response, and a low core voltage, high current supply. The mono block type MYMGK series delivers fast transient response with a minimum of external output capacitors; this contributes to significantly shrinking the customer’s board size.

These highly efficient, ultra-compact converters, typically between 87.8% to 95% model and load dependent, meet the industrial and telecom requirements for size, efficiency, and power density, especially in the MYMGK series’ high temperature operating case with its excellent thermal derating performance.