Nano power dc-dc reduces power consumption in standby mode
Stephen LawElectronics Power Supply / Management Wearable Technology buck converter Halo power wearable
HALO MICROELECTRONICS HL7543 buck converter product line is designed specifically for wearable devices and its high efficiency makes it suitable for battery-powered devices. Device features an input voltage range between 2.3V to 5.5V delivering up to 600mA high efficiency while maintaining over 90% efficiency at load current as low as 10mA. Product’s wide range of output capacitors can be used to optimize VOUT stability during load transients, and inductors of 2.2mH may be used without affecting loop stability. Device operates at a high frequency of 1.2MHz, greatly reducing the value of the required external components. At moderate to light loads, the Pulse Frequency Modulation (PFM) is used to maintain conversion efficiency with non-switching quiescent currents. The HL7543 maintains excellent load and line transient responses even with such a low quiescent current. Device comes in a compact 1.6mm x 0.9mm WLCSP-8 package; suitable for wearable devices with limited space.
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