The SGM62116 is a fully-integrated synchronous Buck-Boost converter which is capable of operating from 1.8V to 5.5V input and suitable for battery powered applications such as 1-cell Li-ion battery, 2-cell or 3-cell Alkaline/NiMH batteries. The device integrates 900mA typical average input current limit.
The SGM62116 adopts the peak current mode control with a fixed 2.4MHz switching frequency to regulate the output voltage. In addition, the SGM62116 offers configurable seamless transition PFM (pulse frequency modulation) mode or FPWM (forced PWM) mode via configuration of MODE/SYNC pin configuration. PFM enables higher light load efficiency, while FPWM mode ensures constant switching frequency throughout entire load range. External clock synchronization is also available with SGM62116.
The SGM62116 offers various protection features to improve device robustness. Integrated soft-start to reduce inrush current during startup, cycle-by-cycle over-current protection, over-voltage protection and thermal shutdown protection are implemented. In addition, the device features true load-disconnect when the EN pin is pulled low.
The device is available in a Green WLCSP-1.11×1.84-8B package.
1.8V to 5.5V Input Voltage Range (Minimal 2V for Startup)
1.2V to 5.5V Output Voltage Range (Adjustable)
Up to 94% Efficiency
35μA (TYP) Quiescent Current
Fixed 2.4MHz Switching Frequency
Seamless Transition Pulse Frequency Modulation
Automatic Mode Transition
Synchronization to External Clock Available
OTP, Input OCP and Output OVP
True Shutdown Function with Load-Disconnect
Available in a Green WLCSP-1.11×1.84-8B Package
TWS, VR Glasses
Portable Medical Equipment
LED Bias
Sensors
