Description
The TPS81256SIPR device is a complete MicroSiP DC/DC step-up power solution intended
for battery-powered portable applications. Included in the package
are the switching regulator, inductor and input/output capacitors.
Only a tiny additional output capacitor is required to finish the
design. The TPS81256 is based on a high-frequency synchronous
step-up DC/DC converter optimized for battery-powered portable
applications. The DC/DC converter operates at a regulated 4-MHz
switching frequency and enters power-save mode operation at light
load currents to maintain high efficiency over the entire load
current range.
The TPS81256SIPR PFM mode extends the battery life by reducing the supply current to
43μA (typical) during light load operation. Intended for low-power
applications, the TPS81256 supports more than 3W output power over
a full Li-Ion battery voltage range. Input current in shutdown mode
is less than 1µA (typical), which maximizes battery life.
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