SGM62116
SGM62116 is High-Efficiency Buck-Boost Converter manufactured by SG Micro.
DESCRIPTION
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/Ni MH batteries. The device integrates 900m A 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.
FEATURES
- 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
APPLICATIONS
TWS, VR Glasses Portable Medical Equipment LED Bias Sensors
TYPICAL APPLICATION
L1 1. 5μH
VIN 1.8V to 5.5V
C1 10μF
SW1 SW2
VI N
VO UT
EN FB
MODE/ SY NC
R1 287kΩ
VOUT 3. 3V
C2 3×10μF
R2 51.1kΩ
Figure 1. Typical Application Circuit
SG Micro Corp .sg-micro.
MAY 2023
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