●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 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 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 × 2.9mm) and low profile (1.0mm) BGA package suitable for automated assembly by standard surface mount equipment.
● 91% Efficiency at 4MHz Operation
● Wide VIN Range From 2.5V to 5.5V
● IOUT ≥550mA at VOUT = 5.0V, VIN ≥3.3V
● Fixed Output Voltage 5.0V
● ±2% Total DC Voltage Accuracy
● 43µA Supply Current
● _Best-in-Class_ Line and Load Transient
● VIN ≥ VOUT Operation
● Low-Ripple Light-Load PFM Mode
● True Load Disconnect During Shutdown
● Thermal Shutdown and Overload Protection
● Sub 1-mm Profile Solution
● Total Solution Size <9mm2
● 9-Pin MicroSiP Packaging
