Non-isolated DC-DC range in SMD LGA footprint includes inputs up to 36V

24-02-2020 | Recom International | Power

RECOM has announced its RPMB-3.0 range of 3A non-isolated DC-DCs in a DOSA-compatible LGA package with adjustable output from 1-24V and input voltage up to 36V.


With the launch of its new series, the company has expanded its range of compact, non-isolated DC-DCs in its standard 12.19mm x 12.19mm x 3.75mm package. Preset outputs available are 3.3V (trimmable 1-9V), 5V (trimmable 1-9V), 12V (trimmable 9-24V), or 15V (trimmable 9-24V). All models operate up to 36V input with a low dropout voltage of 500mV or less. All parts operate to 100C ambient with some load derating but with no need for forced air cooling. The efficiency is up to 94% enabling the full output current of 3A across the entire input voltage range. Efficiency is also excellent down to very low loads, which combined with an extremely low quiescent current of 30µA (3.3V version), makes this series suitable for applications that have ‘sleep’ modes such as microcontrollers and transceivers. The parts also feature 6-sided shielding for low radiated EMI and excellent thermal management.


Particular features are full protection (UVLO, SCP, OCP, OTP) and the ability to drive high capacitive loads up to 0.2F. Power sequencing, soft start, on/off control, remote sensing and a power good signal are also provided. An evaluation board RPMB-3.0-EVM-1 is available which offers all of the features to be tested with component positions given to allow filter networks to be developed for an optimum solution for compliance with ‘class B’ conducted EMI levels.


“The RPMBxx3.0 complements our RPM5.0-3.0 and RPM3.3-3.0 3A-rated switching regulators with its high input voltage rating which includes the industry-standard 24V”, comments Steve Roberts, innovation manager at RECOM. “Users can now drop 24V directly to voltages as low as 1V to power sensors, displays and wireless modules such as GPRS, Wi-Fi and Bluetooth-meshTM”.

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