The SGM61223 is an adaptive constant on-time control (ACOT) synchronous Buck converter with a wide input voltage range of 4.5V to 28V. This device has 2A output current capability and operates at pseudo-fixed frequency. It is an easy-to-use device with power switches and internal compensation circuit, which are all integrated in a small 6-pin package, and supports low-equivalent series resistance (ESR) output capacitors. A typical 3ms soft-start ramp is also included to minimize the inrush current.
Protection features include cycle-by-cycle current limit, hiccup current-protection mode, output over-voltage protection and thermal shutdown in case of excessive power dissipation.
The SGM61223A-ADJ enters in pulse-skip mode (PSM) to improve efficiency during light load operation.
The SGM61223 is available in a Green TSOT-23-6 package.
- Wide 4.5V to 28V Input Voltage Range
- Adjustable Option
- 0.597V to 7V Output Voltage Range
- 2A Continuous Output Current
- Integrated 130mΩ/65mΩ Power MOSFETs
- Low Quiescent Current: 45μA
- Shutdown Current: 2.8μA (TYP)
- 3ms Internal Soft-Start Time
- Pseudo-Fixed 700kHz Switching Frequency
- Adaptive Constant On-Time Mode Control
- Pulse-Skip Mode (SGM61223A)
- Hiccup Current-Protection Mode
- Output Over-Voltage Protection
- Adjustable Input Under-Voltage Lockout
- Thermal Shutdown with Auto Recovery
- Available in a Green TSOT-23-6 Package
12V Distributed Power Supply Buses
Industrial and Consumer Applications
White Goods
Audio Equipment
Set Top Boxes
Digital Television
Printers
