Automotive 3.8V to 36V Input, 3A, Synchronous Buck Converter.
SGM61330Q
SGM61330Q.pdf
SGM61330Q.pdf
No.14156
FEATURES
? AEC-Q100 Qualified for Automotive Applications
Device Temperature Grade 1
TA = -40℃ to +125℃
? Wide 3.8V to 36V Input Voltage Range
? Up to 3A Continuous Output Current
? 1V to 24V Output Voltage Range
? Fixed Switching Frequency
SGM61330AQ: 400kHz
SGM61330CQ: 2.1MHz
? Power-Good Flag and Precision Enable
? Integrated RDSON Switches: 65m?/42m? (TYP)
? PFM for High Efficiency at Light Load Condition
? Ultra-Low Shutdown Current: 2μA (TYP)
? Low Quiescent Current: 28μA (TYP)
? Peak Current Mode Control
? Cycle-by-Cycle Current Limit
? 4ms (TYP) Internal Soft-Start Time
? Available in a Green TQFN-2×3-12BL Package
DESCRIPTION
The SGM61330xQ is internally compensated, synchronous Buck converter with a wide 3.8V to 36V input voltage range and 3A output current capability. This device can be easily used in various automotive applications powered from unregulated sources. Easy compensation and cycle-by-cycle current limit are obtained by peak current mode control. With 28μA (TYP) quiescent current and ultra-low 2μA (TYP) shutdown current, it is well suited for battery powered systems to prolong battery life. Internal compensation allows quick and low component count design.
The SGM61330xQ can operate at fixed frequency with moderate or heavy load condition. In light load condition, it enters in the pulse frequency modulation (PFM) mode to improve high efficiency.
The EN employs an enable divider to establish a precision threshold that simplifies UVLO adjustment, device on/off control and power sequencing. Thermal shutdown and output short-circuit protection (hiccup mode) are also provided.
The device is AEC-Q100 qualified (Automotive Electronics Council (AEC) standard Q100 Grade 1) and it is suitable for automotive applications.
The SGM61330xQ is available in a Green TQFN-2×3- 12BL package.
APPLICATION CIRCUIT
PIN CONFIGUTION
