LDO for ultra-miniature IoT applications
Toshiba Electronics Europe has launched a series of low-dropout (LDO) voltage regulators in ultra-miniature DFN4D package type.
The LDO devices are specifically aimed at miniature applications powered by small-scale batteries and can significantly reduce power consumption in IoT equipment/modules, communications modules, wearable devices, and other miniature equipment.
The TCR3LM series has thirty devices spanning the voltage range 0.8V DC to 5.0V DC with an input voltage (VIN) in the range 1.4V DC to 5.5V DC. Each device is capable of delivering up to 300mA of output current (IOUT).
The DFN4D package measuring just 1.0mm × 1.0mm × 0.37mm. Furthermore, as small ceramic capacitors can be used on the input and output, the overall solution size is further reduced.
The drop-out performance is a typical dropout voltage (VDO) of just 137mV. As the output voltage can be achieved with a lower input voltage, battery drain is reduced.
The load transient response has also been improved, enhancing the output stability when the load fluctuates. Toshiba has achieved a typical transient response of -70mV / +35mV at 2.8V-output, IOUT = 1mA 100mA, while also managing to reduce the quiescent current (IB(ON)) to a typical value of just 1.2μA.
The TCR3LM series is now in mass production.
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
