With a wide input voltage range, the TPS61253x supports applications powered by Li-Ion batteries with extended voltage range. Intended for the low-power applications, it supports up to 1500-mA load current from a battery discharged as low as 3 V and allows the use of low cost chip inductor and capacitors. The TPS61253x offers a very small solution size due to minimum amount of external components. It allows the use of small inductors and input capacitors to achieve a small solution size. During the pass-through mode, the output voltage is biased to the input voltage.