LM2842XMKX-ADJL/NOPB

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Texas Instruments

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

LM2842XMKX-ADJL/NOPB

Active

Texas Instruments

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

Description Specifications Series Pricing CAD Documents

Description

General part information

LM2842 Series

The LM284x 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 is optimized for up to 100 mA, the LM2841 for up to 300 mA, and the LM2842 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 are available in a low-profile SOT-6L package.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2842XMKX-ADJL/NOPB

Current - Output	600 mA
Frequency - Switching	550 kHz
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
Package Name	TSOT-23-6
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	42 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	34 V
Voltage - Output (Min/Fixed)	0.765 V

LM2842 Series

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

Part	Voltage - Output (Max)	Current - Output	Number of Outputs	Synchronous Rectifier	Function	Mounting Type	Voltage - Output (Min/Fixed)	Output Configuration	Package / Case	Voltage - Input (Min)	Operating Temperature (Max)	Operating Temperature (Min)	Topology	Frequency - Switching	Package Name	Output Type	Voltage - Input (Max)	Qualification	Grade	Supplied Contents	Total Output Count	Non-Isolated Output Count	Board Type	Voltage - Input (Maximum)	Voltage - Input (Minimum)	Voltage - Output	Regulator Topology	Utilized IC / Part	Contents	Main Purpose
Texas Instruments LM2842YMK-ADJL/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	1.25 MHz	TSOT-23-6	Adjustable	42 V
Texas Instruments LM2842YMKX-ADJL/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	1.25 MHz	TSOT-23-6	Adjustable	42 V
Texas Instruments LM2842YQMK/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	1.25 MHz	TSOT-23-6	Adjustable	42 V	AEC-Q100	Automotive
Texas Instruments LM2842XQMKX/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	550 kHz	SOT-23-THIN	Adjustable	42 V	AEC-Q100	Automotive
Texas Instruments LM2842XQMK/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	550 kHz	TSOT-23-6	Adjustable	42 V	AEC-Q100	Automotive
Texas Instruments LM2842XQMK-M3	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	550 kHz	SOT-23-THIN	Adjustable	42 V
Texas Instruments LM2842XMK-ADJEV/NOPB		600 mA												550 kHz		Non-Isolated				Board(s)	1	1 count	Fully Populated	42 V	4.5 V	3.3 V	Buck	LM2842	Board	DC/DC Step Down
Texas Instruments LM2842XMK-ADJL/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	550 kHz	TSOT-23-6	Adjustable	42 V
Texas Instruments LM2842XMKX-ADJL/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	550 kHz	TSOT-23-6	Adjustable	42 V
Texas Instruments LM2842YQMKX/NOPB	34 V	600 mA	1	No	Step-Down	Surface Mount	0.765 V	Positive	SOT-23-6 Thin TSOT-23-6	4.5 V	125 °C	-40 °C	Buck	1.25 MHz	SOT-23-THIN	Adjustable	42 V	AEC-Q100	Automotive