Non-isolated DC/DC from Recom is available at Rutronik UK
Distributor Rutronik has added Recom’s RPMH-0.5 series of 0.5A non-isolated DC/DC switching regulators to its linecard. The RPMH-0.5 regulators feature an input range from 4.3 to 65V and five trimmable output options. They also come in a standard DOSA-compatible, low profile LGA package.
The RPMH-0.5 series is designed for down-conversion to a lower voltage. Trimmable fixed outputs of 3.3V (+10/-20 per cent), 5V (+10/-20 per cent), 12V (+10/-40 per cent), 15V (+10/-40 per cent) or 24V (+17/-37 per cent) are available. Input voltage range is 1.0 to 1.5V above the set output up to 65V, making the converters suitable for systems operating on nominal 5, 12, 24 or 48V rails.
The thermal management of the RPMH-0.5 series operates from -40 to +95 degrees C (100 degrees C) ambient with full load and convection cooling only. Efficiency is up to 89 per cent and the full 500mA output current can be delivered across the entire input voltage range, confirms Rutronik UK. Efficiency is also excellent at very low loads, claims the company. Combined with very low quiescent current down to 16µA (3.3V and 5V versions), this makes the RPMH-0.5 series suitable for applications that have ‘sleep’ modes, such as microcontrollers and transceivers.
For low radiated EMI, the RPMH features a six-sided shielding so Class B EMI compliance is achieved with a simple low cost line inductor, Rutronik adds. Additional features include under-voltage lockout, short circuit protection and over current protection, along with power sequencing, soft start, on/off control, remote sensing and a power good signal.
To complement RPMH-0.5 series Rutonik also offers the RPMH-0.5-EVM-1 from Recom for evaluation of control, power good and sensing functions. It generates a constant output current of up to 0.5A from an external DC source, thus allowing the evaluation of all functions of the RPMH-0.5 as well as the behaviour in overload or over temperature before design-in.