LM3754 Series

4.5-V to 18-V, scalable 2-phase synchronous buck controller with integrated FET drivers

Catalog

4.5-V to 18-V, scalable 2-phase synchronous buck controller with integrated FET drivers

Part	Board Type	Total Output Count	Output Type	Non-Isolated Output Count	Supplied Contents	Regulator Topology	Current - Output	Voltage - Output	Main Purpose	Utilized IC / Part	Frequency - Switching	Voltage - Input (Minimum)	Voltage - Input (Maximum)	Contents	Output Configuration	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Control Features	Clock Sync	Mounting Type	Synchronous Rectifier	Output Phases	Operating Temperature (Max)	Operating Temperature (Min)	Function	Package / Case	Number of Outputs	Frequency - Switching (Max)	Frequency - Switching (Min)	Duty Cycle (Max)	Topology	Package Length	Package Name	Package Width
Texas Instruments LM3754EVAL/NOPB	Fully Populated	1	Non-Isolated	1 count	Board(s)	Buck	100 A	1.2 V	DC/DC Step Down	LM3754	300 kHz	6 V	18 V	Board
Texas Instruments LM3754SQ/NOPB			Transistor Driver												Positive	18 V	4.5 V	Current Limit Enable Frequency Control Power Good Tracking	Yes	Surface Mount	Yes	2	125 °C	-5 °C	Step-Down	32-WFQFN Exposed Pad	2	1 MHz	200 kHz	81 %	Buck	5 mm	32-WQFN	5 mm
Texas Instruments LM3754SQX/NOPB			Transistor Driver												Positive	18 V	4.5 V	Current Limit Enable Frequency Control Power Good Tracking	Yes	Surface Mount	Yes	2	125 °C	-5 °C	Step-Down	32-WFQFN Exposed Pad	2	1 MHz	200 kHz	81 %	Buck	5 mm	32-WQFN	5 mm

Catalog

4.5-V to 18-V, scalable 2-phase synchronous buck controller with integrated FET drivers

Description

The LM3754 is a full featured single-output dual-phase voltage-mode synchronous PWM buck controller. It can be configured to control from 2 to 12 interleaved power stages creating a single high power output. This controller utilizes voltage-mode control with input voltage feed-forward for high noise immunity. An internal average current loop forces real time current sharing between phases during load transients. The LM3754 supports adjustable Soft-Start. The Soft-Start function can only drive the output upwards – it will not pull it down, therefore, pre-biased loads will not be discharged. Available in the 5 mm x 5 mm thermally enhanced 32-lead WQFN package with a thermal pad. The LM3754 is a full featured single-output dual-phase voltage-mode synchronous PWM buck controller. It can be configured to control from 2 to 12 interleaved power stages creating a single high power output. This controller utilizes voltage-mode control with input voltage feed-forward for high noise immunity. An internal average current loop forces real time current sharing between phases during load transients. The LM3754 supports adjustable Soft-Start. The Soft-Start function can only drive the output upwards – it will not pull it down, therefore, pre-biased loads will not be discharged. Available in the 5 mm x 5 mm thermally enhanced 32-lead WQFN package with a thermal pad.