The SGM61131B is an adaptive constant on-time control (ACOT) synchronous Buck converter with a wide input voltage range of 4.5V to 17V. This device has 3A 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 1ms soft-start ramp is also included to minimize the inrush current.
Protection features include cycle-by-cycle current limit, hiccup mode short-circuit protection and thermal shutdown in case of excessive power dissipation.
The SGM61131B works in forced PWM mode over all load condition to achieve low output ripple and good regulation.
The SGM61131B is available in a Green TSOT-23-6 package.
- Wide 4.5V to 17V Input Voltage Range
- 0.762V to 7V Output Voltage Range
- 3A Continuous Output Current
- Integrated 72mΩ/46mΩ Power MOSFETs
- Shutdown Current: 1μA (TYP)
- 1ms Internal Soft-Start Time
- Pseudo-Fixed 600kHz Switching Frequency
- Adaptive Constant On-Time Mode Control
- Forced PWM Mode
- Cycle-by-Cycle Over-Current Limit
- Thermal Shutdown with Auto Recovery
- Available in a Green TSOT-23-6 Package
12V Distributed Power Supply Buses
Industrial and Consumer Applications
White Goods
Surveillance
Set-Top Boxes
General Purpose Point of Load
