TPS61023 device is a synchronous boost converter
with 0.5-V ultra-low input voltage. The device
provides a power supply solution for portable
equipment and smart devices powered by various
batteries and super capacitors. The TPS61023 has
typical 3.7-A valley switch current limit over
full temperature range. With a wide input voltage
range of 0.5 V to 5.5 V, the TPS61023 supports
super capacitor backup power applications, which
may deeply discharge the super capacitor.The TPS61023 operates at 1-MHz switching
frequency when the input voltage is above 1.5 V.
The switching frequency decreases gradually to 0.5
MHz when the input voltage is below 1.5 V down to
1 V. The TPS61023 enters power-save mode at light
load condition to maintain high efficiency over
the entire load current range. The TPS61023
consumes a 20-µA quiescent current from
VOUT in light load condition. During
shutdown, the TPS61023 is completely disconnected
from the input power and only consumes a 0.1-µA
current to achieve long battery life. The TPS61023
has 5.7-V output overvoltage protection, output
short circuit protection, and thermal shutdown
protection.The TPS61023 offers a very small solution size
with 1.2-mm × 1.6-mm SOT563 (DRL) package and
minimum amount of external components.
