The SGM6040 is a new generation 60nA (TYP) ultra-low operating quiescent current synchronous Buck converter. The device implements proprietary circuits to allow 120nA IQ in 100% bypass mode as the input battery source reaches the end of discharge.
The SGM6040 operates from 1.8V to 5.5V, which is suitable for various input batteries such as up to 3S Alkaline, 1S to 2S Li-MnO2, or 1S Li-Ion/Li-SOCl2. The device offers 16 predefined output voltages via a single resistor connected from VSET pin to GND.
The SGM6040 implements the constant on-time (COT) control architecture to provide excellent line and load transient responses, while it maintains low output ripple at light load for noise sensitive applications. The device operates with a switching frequency of 1.5MHz (TYP) at heavy load conditions. When configured in power-save mode via the MODE pin, the device is capable of achieving excellent efficiency down to 1µA and below.
The device offers a STOP pin function that can immediately terminate the switching of the device to eliminate any switching noise for noise sensitive applications or systems that need to take measurement during a transient event.
The SGM6040 is available in a Green TDFN-2×1.5-8L and WLCSP-0.89×1.19-6B package.
- 1.8V to 5.5V Input Voltage Range
- 1.8V to 3.4V Output Voltage Range
- Up to 750mA Output Current
- 60nA (TYP) Quiescent Current
- 25nA (TYP) Shutdown Current
- 100% Duty-Cycle Mode
- 80% Efficiency at 1µA Output Current with 3.6V Input to 1.8V Output
- 16 Selectable Output Voltages on VSET Pin
- COT Control
- Output Discharge Function
- Transit Automatically in PFM/PWM or Forced PWM Mode
- Selectable Forced PWM and Stop Modes
- Available in a Green TDFN-2×1.5-8L and WLCSP-0.89×1.19-6B Package
Utility Meters
Asset Tracking Devices
Wearable Electronics
Portable Medical Devices
Industrial IoT (Smart Sensors)/NB-IoT
