LM2841XMK-ADJL
Programmable DC-DC converter for customized solutionsLM2841XMK-ADJL
Programmable DC-DC converter for customized solutions
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Manufacturer Part # : LM2841XMK-ADJL
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Package/Case: SOT-6
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Part Status : ACTIVE
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Brand: Texas Instruments
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Product Categories : AC DC Converters, Offline Switches
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Shipping & Payment
Shipping & Payment
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Service & Packaging
Service & Packaging
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LM2841XMK-ADJL DataSheet
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Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
for the LM2841The LM284xSIMPLE 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 ofapplications, such as power conditioning from unregulated sources. They feature a lowRDSON (0.9‑Ω typical) internal switch for maximum efficiency(85% typical). Operating frequency is fixed at 550 kHz (X option) and1.25 MHz (Y option), allowing the use of small external components while still beingable 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 thesoft-start time to a specific application.The LM2840 isoptimized for up to 100 mA, the LM2841 for up to 300 mA, and the LM2842 for up to 600‑mAload currents. They all have a 0.765-V nominal feedback voltage.Additional features include: thermal shutdown, VIN undervoltagelockout, and gate-drive undervoltage lockout. The LM284x are available in a low-profile SOT-6L package.
Key Features
- Input voltage 4.5 V to 42 V
- Outputcurrent options of 100 mA, 300 mA, and 600 mA
- Feedback pin voltage of 0.765V
- 550-kHz (X) or 1.25-MHz (Y) switching frequency
- Lowshutdown IQ: 16-µA typical
- Short-circuitprotected
- Internally compensated
- Soft-startcircuitry
- Small overall solution size (SOT-6L package)
- Create a custom design using the LM2840 (or LM2841/42) with theWEBENCH® Power Designer
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Product Category ! | Switching Voltage Regulators | Output Current ! | 300 mA |
Input Voltage, Max | 42 V | Number of Outputs | 1 Output |
Topology | Buck | Package / Case | SOT-6 |
Mounting Style | SMD/SMT | Switching Frequency ! | 550 kHz |
Minimum Operating Temperature | - 40 C | Maximum Operating Temperature ! | + 125 C |
Input Voltage, Min | 4.5 V | Brand | Texas Instruments |
Product Type ! | Switching Voltage Regulators | Subcategory | PMIC - Power Management ICs |
Tradename | SIMPLE SWITCHER | Type | Step Down |
Unit Weight | 0.001058 oz |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LM2841XMK-ADJL?
The LM2841XMK-ADJL is a high efficiency, high voltage step-down DC-DC regulator from Texas Instruments. It is designed to deliver up to 300mA of output current, making it suitable for a wide range of applications including industrial, automotive, and battery-powered systems.
How Does LM2841XMK-ADJL Work?
The LM2841XMK-ADJL operates by efficiently converting a higher input voltage to a lower, regulated output voltage. It utilizes a synchronous rectification topology to minimize power loss and maximize efficiency. The regulator features a fixed frequency PWM control scheme, providing predictable, low-noise performance.
How Many Pins does LM2841XMK-ADJL have and What are the Functions of the Pinout Configuration?
The LM2841XMK-ADJL is housed in a 6-pin SOT-23 (Small Outline Transistor) package. The pinout configuration includes:
- VIN: Input voltage pin.
- GND: Ground pin.
- FB: Feedback pin for output voltage regulation.
- EN: Enable pin for controlling the regulator's on/off state.
- SW: Switching node for the internal MOSFET.
- PGND: Power ground pin for the internal power switch.
What are the Pros and Cons of LM2841XMK-ADJL?
Pros:
- High Efficiency: Provides a high efficiency step-down regulator solution, minimizing power loss.
- Low Output Voltage Ripple: Delivers low output voltage ripple for noise-sensitive applications.
- Compact Package: Housed in a compact SOT-23 package, suitable for space-constrained designs.
- Wide Input Voltage Range: Supports a wide input voltage range, making it versatile for different power supply applications.
Cons:
- Fixed Frequency: May not be ideal for applications requiring frequency synchronization with other components.
- Thermal Considerations: Heat dissipation may need to be carefully managed, especially at higher input voltages and output currents.
- External Components: Additional external components such as input/output capacitors and inductors may be required for optimal performance.
Are There Any Equivalents/Alternatives to LM2841XMK-ADJL for Recommendation?
- The LM2840XMK-ADJL from Texas Instruments is a closely related DC-DC regulator with similar features.
- Alternatives to the LM2841XMK-ADJL include the TPS62125 from Texas Instruments and the LT1763 from Analog Devices.
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