SGM61132A数据手册SGMICRO中文资料规格书

描述 Description

The SGM61132A 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 SGM61132A enters in pulse-skip mode to improve efficiency during light load operation. 
The SGM61132A is available in a Green SOT-563-6 package.

特性 Features

• Wide 4.5V to 17V Input Voltage Range
• 0.806V to 7V Output Voltage Range
• 3A Continuous Output Current
• Integrated 56mΩ/35mΩ Power MOSFETs
• Shutdown Current: 1μA (TYP)
• 1ms Internal Soft-Start Time
• Pseudo-Fixed 500kHz Switching Frequency
• Adaptive Constant On-Time Mode Control
• Pulse-Skip Mode
• Cycle-by-Cycle Over-Current Limit
• Thermal Shutdown with Auto Recovery
• Available in a Green SOT-563-6 Package

应用 Application

12V Distributed Power Supply Buses
Industrial and Consumer Applications
White Goods
Surveillance
Set-Top Boxes
General Purpose Point of Load