17V, 3A, High Efficiency Synchronous Step-Down Converter.
SGM61133
SGM61133.pdf
SGM61133.pdf
No.13363
FEATURES
• Wide Input Range: 4.5V to 17V
• Adaptive COT Control
• Ultra-Fast Load Transient Response
• High Efficiency PFM Mode at Light Load
• High Efficiency Synchronous Operation
• 200μA No Load IQ
• Low RDSON Internal Power FETs
• Capable of Delivering 3A
• No External Compensation Needed
• Thermal Shutdown and UVLO
• Available in a Green SOT-563-6 Package
DESCRIPTION
SGM61133 is a wide input range, high-efficiency and high frequency DC/DC step-down switching regulator, capable of delivering up to 3A of output current. It adopts an adaptive COT control scheme that enables very fast transient response and provides a very smooth transition when the output varies from light load to heavy load. During light load, SGM61133 goes into a PFM mode that saves switching loss achieving high efficiency. The adaptive COT control also maintains a constant switching frequency across line and load. An OVP function protects the IC itself and its downstream system against input voltage surges. With this OVP function, the IC can stand off input voltage as high as 25V, making it an ideal solution for industrial applications such as LCD TV, Set Top Box, Portable TV, etc.
The SGM61133 is available in a Green SOT-563-6 package.
APPLICATION CIRCUIT
PIN CONFIGUTION
