Texas Instruments-ADC14C105CISQ Analog to Digital Converters - ADCs 1-Channel Single ADC Pipelined 105Msps 14-bit Parallel 32-Pin WQFN EP T/R

LM3754SQ/NOPB

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Texas Instruments

4.5-V TO 18-V, SCALABLE 2-PHASE SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED FET DRIVERS

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LM3754SQ/NOPB

Active

Texas Instruments

4.5-V TO 18-V, SCALABLE 2-PHASE SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED FET DRIVERS

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM3754 Series

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.

Technical Specifications

Parameters and characteristics for this part

Specification	LM3754SQ/NOPB

Clock Sync	Yes
Control Features	Current Limit, Power Good, Enable, Frequency Control, Tracking
Duty Cycle (Max)	81 %
Frequency - Switching (Max)	1 MHz
Frequency - Switching (Min)	200 kHz
Function	Step-Down
Mounting Type	Surface Mount
Number of Outputs	2
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-5 °C
Output Configuration	Positive
Output Phases	2
Output Type	Transistor Driver
Package / Case	32-WFQFN Exposed Pad
Package Length	5 mm
Package Name	32-WQFN
Package Width	5 mm
Synchronous Rectifier	Yes
Topology	Buck
Voltage - Supply (Vcc/Vdd) Maximum	18 V
Voltage - Supply (Vcc/Vdd) Minimum	4.5 V

LM3754 Series

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

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LM3754 Scalable 2-Phase Synchronous Buck Controller w/ FET datasheet (Rev. B)