Specification	LM2623QNHLRQ1

Current - Output	2.85 A
Frequency - Switching	2 MHz
Function	Step-Up
Grade	Automotive
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	125 ¯C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive
Output Type	Adjustable
Package / Case	14-WFDFN Exposed Pad
Qualification	AEC-Q100
Supplier Device Package	14-WSON (4x4)
Synchronous Rectifier	False
Topology	Boost
Voltage - Input (Max) [Max]	14 V
Voltage - Input (Min) [Min]	0.9 V
Voltage - Output (Max) [Max]	14 V
Voltage - Output (Min/Fixed)	1.24 V

LM2623-Q1 Series

0.8-V to 14-V input voltage, 2-A load current, step-up DC/DC, AEC-Q100 qualified

Part	Topology	Voltage - Output (Min/Fixed)	Voltage - Input (Min) [Min]	Supplier Device Package	Output Type	Frequency - Switching [Max]	Frequency - Switching [Min]	Output Configuration	Package / Case	Mounting Type	Number of Outputs	Voltage - Input (Max) [Max]	Voltage - Output (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output	Function	Package / Case [custom]	Package / Case	Voltage - Output	Voltage - Input [Min]	Voltage - Input [Max]	Main Purpose	Utilized IC / Part	Outputs and Type	Outputs and Type	Board Type	Regulator Topology	Supplied Contents	Frequency - Switching	Grade	Qualification
Texas Instruments LM2623ALD	Boost	1.24 V	0.8 V	14-WSON (4x4)	Adjustable	2 MHz	300 kHz	Positive	14-WFDFN Exposed Pad	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up
Texas Instruments LM2623AMMX/NOPB	Boost	1.24 V	0.8 V		Adjustable	2 MHz	300 kHz	Positive	8-MSOP 8-TSSOP	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up	0.118 in	3 mm
Texas Instruments LM2623MM/NOPB	Boost	1.24 V	0.8 V		Adjustable	2 MHz	300 kHz	Positive	8-MSOP 8-TSSOP	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up	0.118 in	3 mm
Texas Instruments LM2623LD	Boost	1.24 V	0.8 V	14-WSON (4x4)	Adjustable	2 MHz	300 kHz	Positive	14-WFDFN Exposed Pad	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up
Texas Instruments LM2623EV						2 MHz										2 A				5 V	2.3 V	5.5 V	DC/DC Step Up	LM2623	Non-Isolated	1	Fully Populated	Boost	Board(s)
Texas Instruments LM2623AMM	Boost	1.24 V	0.8 V		Adjustable	2 MHz	300 kHz	Positive	8-MSOP 8-TSSOP	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up	0.118 in	3 mm
Texas Instruments LM2623LDX	Boost	1.24 V	0.8 V	14-WSON (4x4)	Adjustable	2 MHz	300 kHz	Positive	14-WFDFN Exposed Pad	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up
Texas Instruments LM2623LD/NOPB	Boost	1.24 V	0.8 V	14-WSON (4x4)	Adjustable	2 MHz	300 kHz	Positive	14-WFDFN Exposed Pad	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up
Texas Instruments LM2623MMX/NOPB	Boost	1.24 V	0.8 V		Adjustable	2 MHz	300 kHz	Positive	8-MSOP 8-TSSOP	Surface Mount	1	14 V	14 V	85 °C	-40 °C	2.2 A	Step-Up	0.118 in	3 mm
Texas Instruments LM2623QNHLRQ1	Boost	1.24 V	0.9 V	14-WSON (4x4)	Adjustable			Positive	14-WFDFN Exposed Pad	Surface Mount	1	14 V	14 V	125 ¯C	-40 °C	2.85 A	Step-Up													2 MHz	Automotive	AEC-Q100

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	$ 2.79
	Digi-Reel®	1	$ 2.79
	Tape & Reel (TR)	4500	$ 0.84
		9000	$ 0.80
Texas Instruments	LARGE T&R	1	$ 1.52
		100	$ 1.26
		250	$ 0.91
		1000	$ 0.68

Description

General part information

LM2623-Q1 Series

The LM2623-Q1 is a high-efficiency, general-purpose, step-up DC-DC switching regulator for automotive systems. The device accepts an input voltage between 0.9 V and 14 V and converts it into a regulated output voltage between 1.24 V and 14 V.

In order to adapt to a number of applications, the LM2623-Q1 allows the designer to program the output voltage, the operating frequency (300 kHz to 2 MHz), and duty cycle (17% to 90%) to optimize performance. The selected values can be fixed or can vary with input voltage or input-to-output voltage ratio. The LM2623-Q1 uses a very simple, on/off regulation mode to produce good efficiency and stable operation over a wide operating range. The device normally regulates by skipping switching cycles when it reaches the regulation limit (pulse frequency modulation (PFM)).

Refer toNon-Linear EffectandChoosing the Correct C3 Capacitorto resolve any design challenges before board design is finalized.

Documents

Technical documentation and resources

LM2623-Q1 Automotive Gated-Oscillator-Based DC-DC Boost Converter datasheet

Data sheet