pSemi PE25213
The PE25213 is an ultra-high efficiency charge pump that you can configure to divide down an input voltage by two or three and delivers up to 10A with peak efficiency up to 99%. The PE25213 supports a 5.7V to 15V input voltage range in divide-by-2 mode and 8.4V to 15V in divideby-3 mode. The PE25213 is primarily used as a front-end converter to convert a two- or three-cell battery input to a 1-1.5S output for downstream regulator to improve overall system efficiency and extend run time.GENERAL DESCRIPTION
The PE25213 unique auto-switch mode changes the divide-down ratio during operation to avoid a downstream under-voltage lockout (UVLO) event at heavy system loading during a low-battery condition. The PE25213 comes in a 4.545 mm × 2.715 mm 47-pin wafer-level chip scale package (WLCSP). The pinout is specially designed to be fully compatible with Type III PCB design.● 12VIN point-of-load designs in networking and telecommunications Efficiency Figure 1. Typical Efficiency with VIN = 7.4V in Divide-by-2 and VIN = 11.4V in Divide-by-3, Fixed Frequency (FF), and Cycle Skip (CS) Modes Simplified Application
FEATURES
● Proprietary architecture enables industry leading efficiency with an ultra-low 1 mm profile solution.● Wide input voltage range—from 5.7V to 15V— supports two- or three-cell mobile computers and 12V-bus point-of-load applications.
● Peak efficiency of 99%.
● Pin-selectable cycle skipping mode for improved light load efficiency.
● Dynamically configurable divide-by-2 or -3 modes under load.