Leading electronics component manufacturer Würth Elektronik has introduced its latest power-module family, the MagI³C-VDMM Variable Step-Down MicroModule series, designed to meet the rigorous demands of modern embedded, portable, and industrial electronics.
The three variable step-down MicroModules for input voltages from 2.5 V to 5.5 V and adjustable output voltages from 0.6 V to 4 V are available in pin-compatible 1 A, 2 A, and 3 A versions. The modules achieve a peak efficiency of up to 96 percent. With their low quiescent current of 4 µA, they are also suitable for battery-powered applications.
MagI³C-VDMM power modules represent a fully integrated DC-DC power supply that includes a switching regulator with integrated MOSFETs, as well as a controller, compensation, and a shielded inductor – all in a single package. The modules, which can replace linear regulators, are equipped with integrated protection circuits. They protect against thermal overload and electrical damage caused by overcurrent, short circuit,/ and undervoltage. Depending on the load, they automatically switch between pulse frequency modulation (PFM) and pulse width modulation (PWM) modes. These mode transitions ensure optimal efficiency and output voltage ripple at all load currents. To save energy, the power module can be set to resting mode using an additional pin. Together, the Power-GOOD and EN functions also enable power sequencing. The new MagI³C-VDMM power modules are highly compact with their 3.5 x 3.5 x 1.5 mm LGA-9 package.
Key Features of MagI³C-VDMM
- Low conducted and radiated EMI (compliant to EN55032 Klasse B / CISPR-32)
- Very low profile micropackage
- Ideal for space-constrained applications
- 2 solder cycles supported
- For LGA-8EP direct connection to a 24 V industrial voltage network
- For LGA-12 direct connection to a 48 V industrial voltage network, and has spread spectrum for optimized EMI performance
Applications of MagI³C-VDMM
- Point-of-Load DC/DC applications
- Replacement for linear regulators
- Interface and microcontroller supply
- DSP and FPGA power supply auxiliary voltages
- Portable instruments
- Battery-powered equipment
- Sensors
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