LM2842XMK-ADJL/NOPBIn StockTexas Instruments
LM2842XMK-ADJL/NOPB is a TI 600mA adjustable synchronous buck converter with 4.5-42V input, 550kHz switching in SOT-23-6. From $1.08 at 235+ qty, in stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- SOT-23
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- LM2842XMK-ADJL/NOPB Datasheet PDF
- Category
- power-management
- Price
- From $1.0817(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 4.5V to 42V input voltage range for industrial and automotive
- Adjustable output from 0.765V to 38V via external resistors
- Integrated synchronous MOSFETs for high efficiency
- 550kHz fixed switching frequency for small inductor size
- Tiny SOT-23-6 package minimizes board space
Applications
The LM2842XMK-ADJL/NOPB is used in 12V/24V industrial power supplies, automotive accessory modules, and distributed power systems requiring efficient voltage step-down. Its wide input range and small package make it ideal for factory automation, building controls, and telecom equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 42V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 0.6A |
| Output Voltage-Max | 34V |
| Output Voltage-Min | 0.765V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1500kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT-23 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM2842XMK-ADJL/NOPB:
Frequently Asked Questions
What is the input voltage range of the LM2842XMK-ADJL/NOPB?
The LM2842XMK-ADJL/NOPB operates from 4.5V to 42V input, covering 12V and 24V industrial bus voltages with margin for transients. This wide range makes it suitable for automotive 12V systems and industrial 24V rails.
How do you set the output voltage of the LM2842XMK-ADJL/NOPB?
The output voltage is set using an external resistor divider connected to the feedback pin. The adjustable version supports outputs from 0.765V reference voltage up to approximately 38V, calculated as Vout = 0.765V × (1 + R1/R2).
What is the switching frequency of the LM2842XMK-ADJL/NOPB?
The device operates at a fixed 550kHz switching frequency, enabling the use of small inductors and capacitors to minimize total solution size. This frequency provides a good balance between efficiency and component size for most applications.
What efficiency can be expected from the LM2842XMK-ADJL/NOPB?
With integrated synchronous rectification using both high-side and low-side MOSFETs, the LM2842XMK-ADJL/NOPB achieves up to 90% efficiency depending on input/output voltage ratio and load current, significantly better than non-synchronous alternatives.
What package is the LM2842XMK-ADJL/NOPB available in?
The device comes in a compact 6-pin SOT-23 package measuring approximately 2.9mm x 1.6mm, making it one of the smallest 42V-rated buck converters available. This enables use in space-constrained industrial and automotive designs.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.6600 | $3.66 |
| 10+ | $2.7600 | $27.60 |
| 25+ | $2.5500 | $63.75 |
| 100+ | $2.3000 | $230.00 |
| 180+ | $1.1190 | $201.42 |
| 235+ | $1.0817 | $254.20 |
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