Specification	LP8728QSQX-D/NOPB

Current - Output	1 A
Frequency - Switching	3.2 MHz
Function	Step-Down
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	4
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	1.81 mOhm
Package / Case	28-WFQFN Exposed Pad
Qualification	AEC-Q100
Supplier Device Package	28-WQFN (5x5)
Synchronous Rectifier	True
Topology	Buck
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Min/Fixed)	1.5 V, 1.2 V, 3.3 V
Voltage - Output (Min/Fixed) [Max]	2.65 V
Voltage - Output (Min/Fixed) [Min]	1.8 V

LP8728C-Q1 Series

LP8728C-Q1 Quad Output Step-Down DC/DC Converter for Automotive Applications

Part	Output Type	Function	Output Configuration	Topology	Grade	Qualification	Supplier Device Package	Frequency - Switching	Mounting Type	Package / Case	Voltage - Input (Max) [Max]	Number of Outputs	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed) [Max]	Voltage - Output (Min/Fixed) [Min]	Current - Output	Voltage - Input (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Regulator Topology	Outputs and Type	Outputs and Type	Supplied Contents	Utilized IC / Part	Main Purpose	Voltage - Output	Voltage - Input [Max]	Voltage - Input [Min]	Board Type	Contents
Texas Instruments LP8728QSQX-A/NOPB	1.81 mOhm	Step-Down	Positive	Buck	Automotive	AEC-Q100	28-WQFN (5x5)	3.2 MHz	Surface Mount	28-WFQFN Exposed Pad	5.5 V	4	1.2 V 1.5 V 3.3 V	2.65 V	1.8 V	1 A	4.5 V	-40 °C	125 °C
Texas Instruments LP8728QSQX-C/NOPB	1.81 mOhm	Step-Down	Positive	Buck	Automotive	AEC-Q100	28-WQFN (5x5)	3.2 MHz	Surface Mount	28-WFQFN Exposed Pad	5.5 V	4	1.2 V 1.5 V 3.3 V	2.65 V	1.8 V	1 A	4.5 V	-40 °C	125 °C
Texas Instruments LP8728EVM								3.3 MHz												Buck	4	Non-Isolated Non-Isolated Outputs	Board(s)	LP8728	DC/DC Step Down	1.25 V 1.8 V 2.65 V 3.3 V	5.5 V	4.5 V	Fully Populated	Board(s)
Texas Instruments LP8728QSQX-D/NOPB	1.81 mOhm	Step-Down	Positive	Buck	Automotive	AEC-Q100	28-WQFN (5x5)	3.2 MHz	Surface Mount	28-WFQFN Exposed Pad	5.5 V	4	1.2 V 1.5 V 3.3 V	2.65 V	1.8 V	1 A	4.5 V	-40 °C	125 °C
Texas Instruments LP8728QSQE-A/NOPB	1.81 mOhm	Step-Down	Positive	Buck	Automotive	AEC-Q100	28-WQFN (5x5)	3.2 MHz	Surface Mount	28-WFQFN Exposed Pad	5.5 V	4	1.25 V 1.8 V 3.3 V	2.65 V	1.8 V	1 A	4.5 V	-40 °C	125 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.11
	Digi-Reel®	1	$ 4.11
	Tape & Reel (TR)	4500	$ 2.53
Texas Instruments	LARGE T&R	1	$ 3.83
		100	$ 3.35
		250	$ 2.35
		1000	$ 1.89

Description

General part information

LP8728C-Q1 Series

The LP8728-Q1-C is a quad-output Power Management Unit (PMU), optimized for low-power FPGAs, microprocessors, and DSPs for automotive applications. This device integrates four highly efficient step-down DC-DC converters into one package. Each converter has high current capability and separate controls which allows flexibility to use the device in multiple applications. All the converters operate above the AM band with a fixed 3.2-MHz switching frequency. The high-side switch turn on time of each converter is phase shifted to minimize input current spikes.

Protection features include output short-circuit protection, switch current limits, input overvoltage protection, input undervoltage lockout, and thermal shutdown functions. During start-up, the device controls the output slew rate to minimize output voltage overshoot and the input inrush current.

Documents

Technical documentation and resources

LP8728D-Q1 Quad-Output Step-Down DC-DC Converter datasheet

Data sheet