High-Density PoLs Deliver 6A and 20A

Murata Manufacturing Co., Ltd. has launched their highest power density Mono Block type 20A and 6A point-of-load dc-dc converters (PoL). These new products achieve the small size and high reliability that is required by communication base stations for small cells. In addition to being suitable for use in small cells and other communication equipment, these products can also be used in a wide range of other applications, including optical transmission systems, network security devices, industrial and entertainment equipment for gaming. Mass production of these products began this month.

These dc-dc converters have an operating temperature range of -40 to +85 degrees C. The 6A MYMGK1R806FRSR and 20A MYMGK1R820FRSR have an input range of 4.5- to 5.5-Vdc and an output voltage range of 0.7- to 1.8-Vdc. With an input range of 8.0- to 14.0-Vdc the 6A MYMGK00506ERSR has an output voltage range of 0.7- to 5.0-Vdc while the 20A MYMGK1R820ERSR has an output voltage range of 0.7- to 1.8-Vdc. The 6A units measure 9.0 x 7.5 x 5.0mm while the 20A units measure 10.5 x 9.0 x 5.6mm.

Based on a fixed frequency synchronous buck converter switching topology, these high power conversion efficient PoL module features programmable output voltage, On/Off control and Power Good signal output. These converters also include under voltage lock out (UVLO), output short circuit protection and over-current protection

Communication base stations for small cells intended for use in 5th generation (5G) mobile communications require compact sized dc-dc converters providing prolonged reliability in high-temperature environments.

Mono Block type PoLs are compact and achieve a fast transient response in the output voltage as a result of the technology applied in the design of the analog power supply circuit and in the proprietary high heat dissipation packaging. Consequently, sufficient power is possible even at a high environmental temperatures (85 degrees C) at which power supply capacity normally drops, which makes these products designed for FPGA power applications that operate at a low core voltage and high current. Required peripheral components are built in, which is effective in saving space, reducing the mounting space by a 50% over equivalent products.