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LM2842YMK-ADJL
LM2842YMK-ADJL is a Buck Switching Regulator IC that delivers a positive adjustable output voltage of 0
LM2842YMK-ADJL
LM2842YMK-ADJL is a Buck Switching Regulator IC that delivers a positive adjustable output voltage of 0
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Manufacturer Part # : LM2842YMK-ADJL
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Package/Case: SOT23-6
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Brand: Texas Instruments
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Product Categories : AC DC Converters, Offline Switches
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LM2842YMK-ADJL DataSheet
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 LM2842The 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 ! | 600 mA |
| Input Voltage, Max | 42 V | Number of Outputs | 1 Output |
| Topology | Buck | Package / Case | SOT-6 |
| Mounting Style | SMD/SMT | Switching Frequency ! | 1.25 MHz |
| 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 LM2842YMK-ADJL?
The LM2842YMK-ADJL is a high-efficiency, synchronous buck regulator designed by Texas Instruments. It is ideal for applications requiring efficient power conversion, such as battery-powered devices, industrial automation, and telecom infrastructure.
How Does LM2842YMK-ADJL Work?
The LM2842YMK-ADJL operates as a synchronous buck regulator, converting input voltage into a lower regulated output voltage with high efficiency. It uses a pulse-width modulation (PWM) control scheme and synchronous rectification to minimize power loss. The regulator features adjustable output voltage and operates at a high switching frequency for compact designs.
How Many Pins does LM2842YMK-ADJL have and What are the Functions of the Pinout Configuration?
The LM2842YMK-ADJL is housed in a 10-pin MSOP (Mini Small Outline Package) package. The pinout configuration includes:
- VIN: Input voltage pin.
- SW: Switching node for the internal power switch.
- GND: Ground pin.
- FB: Feedback pin for output voltage regulation.
- EN: Enable pin for turning the regulator on or off.
- SS/TR: Soft-start and tracking pin for controlling start-up behavior.
- PWM: Pulse-width modulation pin for frequency synchronization.
- PGND: Power ground pin.
- VOUT: Regulated output voltage pin.
- COMP: Compensation pin for stability optimization.
What are the Pros and Cons of LM2842YMK-ADJL?
Pros:
- High Efficiency: Achieves high levels of power conversion efficiency.
- Adjustable Output: Provides flexibility with an adjustable output voltage.
- Compact Package: The 10-pin MSOP package offers space-efficient design options.
- Wide Input Voltage Range: Suitable for a variety of input voltage conditions.
- Overcurrent Protection: Includes overcurrent protection for system safety.
Cons:
- External Components: May require external components for specific application requirements.
- Complexity: Synchronous buck regulators may have more complexity compared to non-synchronous alternatives.
- Thermal Considerations: Requires thermal management consideration due to high efficiency operation.
Are There Any Equivalents/Alternatives to LM2842YMK-ADJL for Recommendation?
- The TPS54332 from Texas Instruments is a similar synchronous buck regulator with adjustable output voltage.
- Alternatives to the LM2842YMK-ADJL include the LT1761 from Analog Devices and the MAX17572 from Maxim Integrated.
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