Click here to ask about the production status of specific part numbers. MAX17291 High-Voltage, 1A Micropower Boost Converter with Short-Circuit Protection and True Shutdown General Description Benefits and Features The MAX17291 is a low quiescent current boost (step-up) 28A Quiescent Supply Current from Input DC-DC converter with a 1A peak inductor current limit and Output Short-Circuit Protection True Shutdown. True Shutdown disconnects the output Overtemperature Protection from the input with no forward or reverse current. The out- Constant Frequency in CCM put voltage is set with an external resistor-divider. True Shutdown Mode 0.05A Shutdown Current The MAX17291 offers low quiescent current, small total No Reverse Current from OUT solution size, and high efficiency throughout the entire load range. The MAX17291 is a highly integrated boost 91% Peak Efficiency converter designed for applications requiring high voltage 1.8V to 5.5V Input Range and tiny solution size, such as sensor modules. It in- 5.5V to 20V Output Voltage Range tegrates a power switch, power diode, and output load 1A Peak Inductor Current Limit switch. It can output up to 20V. The load switch is turned Multiple Package Options off under shutdown mode, truly disconnecting the load 1.27mm x 0.87mm, 6-Bump (3 x 2), 0.4mm Pitch from the input voltage, thus minimizing the leakage current WLP during shutdown mode. The device operates with a 2mm x 2mm, 8-Pin TDFN switching frequency of 1.0MHz in continuous conduction -40C to +125C Operating Temperature Range mode (CCM). The MAX17291 switch current limit is 1A. It has 2.2ms built-in soft-start time to minimize inrush cur- Ordering Information appears at end of data sheet. rent. The device features short-circuit and thermal protec- tion. The MAX17291 is offered in space-saving, cost-effective 1.27mm x 0.87mm, 6-bump WLP (3 x 2, 0.4mm pitch) and 2mm x 2mm, 8-pin TDFN packages. The operating tem- perature range is from -40C to +125C. Applications Sensor Power Supply Wearable Devices Portable Medical Equipment True Shutdown is a trademark of Maxim Integrated Products. 19-100778 Rev 2 11/20MAX17291 High-Voltage, 1A Micropower Boost Converter with Short-Circuit Protection and True Shutdown Typical Application Circuit L INPUT 1.8V TO 5.5V OUTPUT 5.5V TO 20V LX IN OUT COUT C IN R2 MAX17291 HIGH (ON) EN FB ENABLE GND LOW (OFF) R1 www.maximintegrated.com Maxim Integrated 2