500mV to 5.5V Input nanoPower Boost Converter with Short-Circuit Protection

The MAX18000 is a nanoPower boost converter with an input voltage range of 0.5V to 5.5V (VOUT > VIN + 0.2V) and a switching current limit of 3.6A. It features an ultralow quiescent current of 512nA which makes it ideal for battery-powered applications requiring a long standby time. The IC operates in nanoPower mode at low loads and transitions into skip and CCM modes of operation at higher load currents to ensure high efficiency over a wide current range.

The output voltage can be varied between 2.5V and 5.5V using a single RSEL resistor.

The IC features a True Shutdown™ mode, which disconnects VIN and VOUT when the EN pin is pulled low. It also features short-circuit protection circuitry that limits the current to 700mA when VOUT < 0.5V and automatically restarts the part when the fault is removed. The thermal-shutdown protection disables the part when the junction temperature crosses +165°C (typ).

The IC is available in 1.07mm x 1.57mm, 6-bump waferlevel package (WLP).

Applications

* Wearable Applications

* IoT Applications

* Battery-Powered Applications

* Portable Devices

* Metering Applications

* 0.5V to 5.5V Input Voltage (VOUT > VIN + 0.2V)

* 1.8V Minimum Start-Up Voltage

* 2.5V to 5.5V (In 100mV Steps) Output Voltage

* 3.6A Cycle-by-Cycle Inductor Current Limit

* 512nA IQ Supply Current into the Output

* True-Shutdown Mode

* 7nA Shutdown Current

* Output Disconnects from Input with no Forward or Reverse Current