The TPS81256 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 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
The 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.
The TPS81256 offers a very small solution size of less than
9mm2 due to minimum amount of external components. The solution is
packaged in a compact (2.6mm x 2.9mm) and low profile (1.0mm) BGA package suitable for automated
assembly by standard surface mount equipment.
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