Datasheet Maxim MAX17271

EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX17270/MAX17271 nanoPower Triple-Output, Single-Inductor,
Multiple-Output (SIMO) Buck-Boost Regulator General Description The MAX17270/MAX17271 are 3-output switching
regulators designed for applications requiring efficient
regulation of multiple supplies in a very small space, such
as wearable electronic devices.
The parts use a buck-boost architecture that regulates
three outputs using a single, small 2.2µH inductor at
efficiencies up to 85%. This results in smaller board space
while delivering better total system efficiency than equivalent
power solutions using one buck and linear regulators.
The supply current is 0.85µA when only one output is
enabled, plus 0.2µA for each additional output enabled.
This SIMO (Single-Input Multiple-Output) regulator utilizes the entire battery voltage range due to its ability to
create output voltages that are above, below, or equal to
the input voltage. Peak inductor current for each output is
programmable to optimize the balance between efficiency,
output ripple, EMI, PCB design, and load capability.
Two versions are available. The MAX17270 has 3 enable
inputs and 3 output voltage programming inputs. The
MAX17271 includes an I2C interface with interrupt, a
push-button turn on/off, and a power-good indication.
All versions are offered in either a 4 x 4, 0.4mm waferlevel package (WLP) or a 16-pin TQFN package. Benefits and Features ●● 3-Output, Single-Inductor, Multiple-Output (SIMO)
Buck-Boost Regulator …