SGM41280.pdf
No.10695
● Wide VIN Range from 2.2V to 4.9V
● 3.85V/3.0A Continues Output at 3.4V Input
● 95% Efficiency at 2.5MHz PWM Frequency
● Simple I/O Control Interface
● Programmable Output Voltage:
3.35V/3.45V/3.65V/3.85V(Default)/4.25V
● IQ = 14μA & RDS(ON) = 25mΩ in Bypass Mode
● Seamless Transition between Boost Mode and Bypass Mode
● Short-Circuit Protection
● Internal Soft-Start
The SGM41280 device provides a power supply solution for products powered by either by a Li-Ion, Nickel-Rich, Silicon Anode, Li-Ion or LiFePO4 battery. The voltage range is optimized for single-cell portable applications like in smart-phones or tablet PCs. Acted as the high-power pre-regulator, the SGM41280 can implement the high density supply to overcome battery system current and voltage limitations.
Used as high density power supply, the SGM41280 can facilitate high current WLED flash, WLED flash module, RF engine PMIC, audio PA etc. with maximum allowed output.
During operation, when the battery is at a good state-of-charge, a low-ohmic, high-efficient integrated pass- through path（Bypass mode） connects the battery to the powered system.
The SGM41280 is available in Green WLCSP- 1.27×1.67-12B and TQFN-3×3-16L packages. It operates over an ambient temperature range of -40℃ to +85℃.
