SGM61232

Active

28V, 3A, Buck DC/DC Converter

SGM61232.pdf

The SGM61232 is a current mode controlled non-synchronous Buck converter with 4V to 28V input range, 3A rated output current and adjustable output voltages from 0.8V up to 25V. A low RDSON N-MOSFET is integrated as high-side switch. Pulse-skip mode (PSM) feature is activated automatically for power-save mode at light loads to improve efficiency. Because of its low shutdown current (1.2μA, TYP), this device can be used in battery operated applications. The internal current mode controller with slope compensation allows ceramic capacitors at the output and simplifies compensation network design. The UVLO level can be adjusted (increased) by an external resistor divider. Protection against over-voltage transient is provided to limit the startup or other transient overshoots. Secure operation in overload conditions is ensured by cycle-by-cycle current limit, frequency fold-back and thermal shutdown protection.

The SGM61232 is offered in Green SOIC-8 (Exposed Pad) and SOIC-8 packages. The device can operate in the -40℃ to +125℃ ambient temperature range.

FEATURES

4V to 28V Input Voltage Range
0.8V Internal Voltage Reference
0.8V to 25V Adjustable Output Voltage Range
Integrated 77mΩ High-side MOSFET Supports up to 3A Continuous Output Current
Fixed 540kHz Switching Frequency
Typical 1.2μA Shutdown Quiescent Current
High Light Load Efficiency
Adjustable Soft-Start to Limit Inrush Current
Programmable UVLO Threshold
Over-Voltage Transient Protection
Cycle-by-Cycle Current Limit
Frequency Fold-Back Protection
Thermal Shutdown Protection
Available in the Green SOIC-8 (Exposed Pad) and SOIC-8 Packages

APPLICATIONS

Industrial Power Supplies

Distributed Power Systems

CPE Equipment

Set-Top Boxes

LCD Displays

Battery Chargers

Ordering Information

Part Number	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report	Unit Resale Price* (Volume Range: in USD)	Lead Time** (Volume Range: Days)
SGM61232XPS8G/TR	Active	SOIC-8 (Exposed Pad)	8	Yes	Yes	Yes	Yes	MSL3	-40℃ to +125℃	View	View	1-24 units : $2.1/unit 25-99 units : $1.8/unit 100-249 units : $1.5/unit 250-499 units : $1.2/unit 500-999 units : $1.05/unit 1000-9999 units : $0.78/unit	3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 days
SGM61232XS8G/TR	Active	SOIC-8	8	Yes	Yes	Yes	Yes	MSL1	-40℃ to +125℃	View	View	1-24 units : $2.1/unit 25-99 units : $1.8/unit 100-249 units : $1.5/unit 250-499 units : $1.2/unit 500-999 units : $1.05/unit 1000-9999 units : $0.78/unit	3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 days