The TPS81256SIPR device is a complete MicroSiP DC/DC step-up power solution intended forbattery-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 finishthe design.
The TPS81256SIPR is based on a high-frequency synchronous step-up DC/DC converter optimizedfor battery-powered portable applications.
The DC/DC converter operates at a regulated 4-MHz switching frequency and enterspower-save mode operation at light load currents to maintain high efficiency over the entire loadcurrent 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 TPS81256SIPR supports more than3W output power over a full Li-Ion battery voltage range. Input current in shutdown mode is lessthan 1μA (typical), which maximizes battery life.
The TPS81256SIPR offers a very small solution size of less than9mm2 due to minimum amount of external components. The solution ispackaged in a compact (2.6mm x 2.9mm) and low profile (1.0mm) BGA package suitable for automatedassembly by standard surface mount equipment.
Feature
- 91% Efficiency at 4MHz Operation
- Wide VIN Range From 2.5V to5.5V
- IOUT ≥550mA at VOUT = 5.0V,VIN ≥3.3V
- Fixed Output Voltage5.0V
- ±2% Total DC Voltage Accuracy
- 43μA Supply Current
- Best-in-Class Lineand Load Transient
- VIN ≥ VOUTOperation
- Low-Ripple Light-Load PFM Mode
- True LoadDisconnect During Shutdown
- Thermal Shutdown and Overload Protection
- Sub 1-mm Profile Solution
- Total Solution Size <9mm2
- 9-PinMicroSiP Packaging
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