Integrated Circuits (ICs)

LM2842YMKX-ADJL/NOPB

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SIMPLE SWITCHER® 4.5V TO 42V, 0.6A STEP-DOWN DC/DC SWITCHING REGULATOR IN THIN SOT-23

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Search across all available documentation for this part.

DocumentsAN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)+17

Integrated Circuits (ICs)

LM2842YMKX-ADJL/NOPB

Active

Texas Instruments

SIMPLE SWITCHER® 4.5V TO 42V, 0.6A STEP-DOWN DC/DC SWITCHING REGULATOR IN THIN SOT-23

Deep-Dive with AI

DocumentsAN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A)AN-2155 Layout Tips for EMI Reduction in DC/ DC Converters (Rev. A)+17

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LM2842YMKX-ADJL/NOPB

Current - Output	600 mA
Frequency - Switching	1.25 MHz
Function	Step-Down
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	TSOT-23-6, SOT-23-6 Thin
Supplier Device Package	TSOT-23-6
Synchronous Rectifier	False
Topology	Buck
Voltage - Input (Max) [Max]	42 V
Voltage - Input (Min) [Min]	4.5 V
Voltage - Output (Max) [Max]	34 V

LM2842-Q1 Series

SIMPLE SWITCHER® 4.5V to 42V, 0.6A Step-Down Regulator in Thin SOT-23

Part	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Output Configuration	Output Type	Topology	Current - Output	Number of Outputs	Mounting Type	Voltage - Input (Max) [Max]	Frequency - Switching	Supplier Device Package	Voltage - Output (Max) [Max]	Voltage - Input (Min) [Min]	Function	Grade	Qualification	Utilized IC / Part	Board Type	Regulator Topology	Voltage - Input [Max]	Voltage - Input [Min]	Outputs and Type	Outputs and Type	Main Purpose	Voltage - Output	Supplied Contents
Texas Instruments LM2842YMK-ADJL/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	1.25 MHz	TSOT-23-6	34 V	4.5 V	Step-Down
Texas Instruments LM2842YMKX-ADJL/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	1.25 MHz	TSOT-23-6	34 V	4.5 V	Step-Down
Texas Instruments LM2842YQMK/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	1.25 MHz	TSOT-23-6	34 V	4.5 V	Step-Down	Automotive	AEC-Q100
Texas Instruments LM2842XQMKX/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	550 kHz	SOT-23-THIN	34 V	4.5 V	Step-Down	Automotive	AEC-Q100
Texas Instruments LM2842XQMK/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	550 kHz	TSOT-23-6	34 V	4.5 V	Step-Down	Automotive	AEC-Q100
Texas Instruments LM2842XMK-ADJEV/NOPB							600 mA				550 kHz							LM2842	Fully Populated	Buck	42 V	4.5 V	Non-Isolated	1	DC/DC Step Down	3.3 V	Board(s)
Texas Instruments LM2842XMK-ADJL/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	550 kHz	TSOT-23-6	34 V	4.5 V	Step-Down
Texas Instruments LM2842XMKX-ADJL/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	550 kHz	TSOT-23-6	34 V	4.5 V	Step-Down
Texas Instruments LM2842YQMKX/NOPB	-40 °C	125 ¯C	SOT-23-6 Thin TSOT-23-6	Positive	Adjustable	Buck	600 mA	1	Surface Mount	42 V	1.25 MHz	SOT-23-THIN	34 V	4.5 V	Step-Down	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	$

Arrow	N/A	3000	$ 1.58
Digikey	Cut Tape (CT)	1	$ 3.12
		10	$ 2.34
		25	$ 2.14
		100	$ 1.93
		250	$ 1.83
		500	$ 1.76
		1000	$ 1.71
	Digi-Reel®	1	$ 3.12
		10	$ 2.34
		25	$ 2.14
		100	$ 1.93
		250	$ 1.83
		500	$ 1.76
		1000	$ 1.71
	Tape & Reel (TR)	3000	$ 1.65
		6000	$ 1.62
Texas Instruments	LARGE T&R	1	$ 2.44
		100	$ 2.14
		250	$ 1.50
		1000	$ 1.21

Description

General part information

LM2842-Q1 Series

The LM284x-Q1 SIMPLE SWITCHER™ devices are PWM DC/DC buck (step-down) regulators. With an input range from 4.5 V to 42 V, they are suitable for a wide range of applications, such as power conditioning from unregulated sources. They feature a low RDSON(0.9‑Ω typical) internal switch for maximum efficiency (85% typical). Operating frequency is fixed at 550 kHz (X option) and 1.25 MHz (Y option), allowing the use of small external components while still being able to have low output voltage ripple. Soft start can be implemented using the shutdown (SHDN) pin with an external RC circuit allowing the user to tailor the soft-start time to a specific application.

The LM2840-Q1 is optimized for up to 100 mA, the LM2841-Q1 for up to 300 mA, and the LM2842-Q1 for up to 600‑mA load currents. They all have a 0.765-V nominal feedback voltage.

Additional features include: thermal shutdown, VINundervoltage lockout, and gate-drive undervoltage lockout. The LM284x-Q1 are available in a low-profile SOT-6L package.