The SGM62117 is a synchronous 4-switch Buck-Boost converter which is suitable for battery operated applications. The device’s programmable light load PFM mode and low quiescent current (18μA, TYP) offer above 90% efficiency in the 10mA to 2A output current range. The output voltage is programmable via external feedback resistor divider.
The SGM62117 can operate in Buck, Boost or a novel 4-cycle Buck-Boost mode when the input voltage is close to or equal to the output voltage. The device implements pre-defined mode transition thresholds to avoid undesired toggling within modes to reduce output voltage ripple.
The SGM62117 offers various protection features to improve device robustness such as over-temperature, input over-voltage and output over-current protections. These features can protect the device against unexpected system failure.
The SGM62117 is available in a small Green TDFN-3×2-10L package. High integration provides a compact solution with only six external components.
2.2V to 5.5V Input Voltage Range
1.8V to 5.2V Output Voltage Range (Adjustable)
2A Output Current for VIN ≥ 2.5V and VOUT = 3.3V
Above 90% Efficiency for IOUT from 10mA to 2A
High Efficiency over the Entire Load Range
18μA (TYP) Quiescent Current
Programmable Forced PWM Mode and Pulse Frequency Modulation Mode
Real Buck, Boost and Buck-Boost Modes
Power Good
Internal Soft-Start
Start-up into Pre-Biased Outputs
Forward and Reverse Current Operation and Current Limit
OTP, Input OVP and Output OCP Protections
True Shutdown Function with Load Disconnect
Available in a Green TDFN-3×2-10L Package
System Pre-Regulator
Point-of-Load Regulation
Thermoelectric Devices
Battery Backup
Voltage Stabilizer and Converter
