SG Micro SGM62117

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 SGM62117 offers various protection features to improve device robustness such as over-temperature, input over-voltage and output over-current protections.

Key features

• Synchronous 4-switch
• Various protection features
• TDFN-3×2-10L package
• Offers various protection features to improve device robustness such as over-temperature

Additional features

• 2.2V to 5.5V input voltage range
• 1.8V to 5.2V output voltage range (adjustable)
• 2A output current for V_IN ≥ 2.5V and V_OUT = 3.3V
• Above 90% efficiency for I_OUT 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

Applications

• System pre-regulator
• Point-of-load regulation
• Thermoelectric devices
• Battery backup
• Voltage stabilizer and converter