The MAX18000 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).
Key Features and Benefits
- 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
- Output Short-Circuit Protection
- Thermal-Shutdown Protection
- 95% Peak Efficiency with 90% or Higher Efficiency for Load > 20μA
- 1.07mm x 1.57mm, 0.5mm Pitch 6-Bump WLP
- -40°C to +125°C Operating Temperature Range
Applications
- Wearable Applications
- IoT Applications
- Battery-Powered Applications
- Portable Devices
- Metering Applications
Evaluation Board
The MAX18000/MAX18002 can be evaluated with the MAX18002WEVKIT#.
Block Diagrams and Tables
