LM2841XBMKX/NOPB

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Texas Instruments

IC REG BUCK ADJ 300MA SOT23

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LM2841XBMKX/NOPB

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Texas Instruments

IC REG BUCK ADJ 300MA SOT23

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Description Specifications Series Pricing CAD Documents

Description

General part information

LM2841 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.

Technical Specifications

Parameters and characteristics for this part

Specification	LM2841XBMKX/NOPB

Current - Output	300 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	SOT-23-THIN
Synchronous Rectifier	No
Topology	Buck
Voltage - Input (Max)	42 V
Voltage - Input (Min)	4.5 V
Voltage - Output (Max)	39.48 V
Voltage - Output (Min/Fixed)	0.765 V

LM2841 Series

SIMPLE SWITCHER® 42V, 300mA Step-Down DC/DC Regulator in Thin SOT-23

Part	Voltage - Output (Max)	Function	Synchronous Rectifier	Grade	Current - Output	Output Configuration	Number of Outputs	Voltage - Output (Min/Fixed)	Frequency - Switching	Operating Temperature (Max)	Operating Temperature (Min)	Package Name	Topology	Voltage - Input (Min)	Package / Case	Mounting Type	Output Type	Voltage - Input (Max)	Qualification	Board Type	Supplied Contents	Total Output Count	Non-Isolated Output Count	Main Purpose	Voltage - Output	Regulator Topology	Utilized IC / Part	Contents	Voltage - Input (Maximum)	Voltage - Input (Minimum)
Texas Instruments LM2841XQMK/NOPB	34 V	Step-Down	No	Automotive	300 mA	Positive	1	0.765 V	550 kHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V	AEC-Q100
Texas Instruments LM2841XMK-ADJL/NOPB	34 V	Step-Down	No		300 mA	Positive	1	0.765 V	550 kHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V
Texas Instruments LM2841XBMKX/NOPB	39.48 V	Step-Down	No		300 mA	Positive	1	0.765 V	550 kHz	125 °C	-40 °C	SOT-23-THIN	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V
Texas Instruments LM2841YMK-ADJL/NOPB	34 V	Step-Down	No		300 mA	Positive	1	0.765 V	1.25 MHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V
Texas Instruments LM2841XMKX-ADJL/NOPB	34 V	Step-Down	No		300 mA	Positive	1	0.765 V	550 kHz	125 °C	-40 °C	SOT-23-THIN	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V
Texas Instruments LM2841YMKX-ADJL/NOPB	34 V	Step-Down	No		300 mA	Positive	1	0.765 V	1.25 MHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V
Texas Instruments LM2841XMK-ADJL/NOPB	34 V	Step-Down	No		300 mA	Positive	1	0.765 V	550 kHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V
Texas Instruments LM2841YQMK/NOPB	34 V	Step-Down	No	Automotive	300 mA	Positive	1	0.765 V	1.25 MHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V	AEC-Q100
Texas Instruments LM2841YMK-ADJEV/NOPB					300 mA				1.25 MHz								Non-Isolated			Fully Populated	Board(s)	1	1 count	DC/DC Step Down	3.3 V	Buck	LM2841	Board	42 V	4.5 V
Texas Instruments LM2841YQMKX/NOPB	34 V	Step-Down	No	Automotive	300 mA	Positive	1	0.765 V	1.25 MHz	125 °C	-40 °C	TSOT-23-6	Buck	4.5 V	SOT-23-6 Thin TSOT-23-6	Surface Mount	Adjustable	42 V	AEC-Q100

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

LM2841XBMKX/NOPB | Datasheet