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4.5V to 42V, 0.3A Step-Down DC/DC Switching Regulator in SOT-23 6-SOT-23-THIN -40 to 125
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LMR14203XMKE/NOPB by Texas Instruments is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
28AH2890
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Newark | Ic, Dc-Dc Conv, Buck, 1.25Mhz, Sot23-6, Topology:Buck (Step Down), Input Voltage Min:4.5V, Input Voltage Max:42V, No. Of Outputs:1Outputs, Dc/Dc Converter Ic Case:Sot, No. Of Pins:6Pins, Output Current:300Ma, Output Voltage Rohs Compliant: Yes |Texas Instruments LMR14203XMKE/NOPB RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Cut Tape | 50 |
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$0.9530 | Buy Now |
DISTI #
LMR14203XMKE/NOPBCT-ND
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DigiKey | IC REG BUCK ADJ 300MA SOT23 Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Tape & Reel (TR), Cut Tape (CT) |
1860 In Stock |
|
$1.2477 / $2.4600 | Buy Now |
DISTI #
926-LMR14203XMKENOPB
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Mouser Electronics | Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.3A SD Vltg Reg A 926-LMR14203XMK/NOPB RoHS: Compliant | 875 |
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$1.2200 / $2.4600 | Buy Now |
DISTI #
LMR14203XMKE/NOPB
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TME | PMIC, DC/DC converter, Uin: 4.5÷42VDC, Uout: 0.765÷34VDC, 0.3A Min Qty: 1 | 0 |
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$1.8200 / $2.7300 | RFQ |
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Win Source Electronics | IC REG BUCK ADJ 0.3A 6TSOT | 39790 |
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$0.4167 / $0.5381 | Buy Now |
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LMR14203XMKE/NOPB
Texas Instruments
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Datasheet
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Compare Parts:
LMR14203XMKE/NOPB
Texas Instruments
4.5V to 42V, 0.3A Step-Down DC/DC Switching Regulator in SOT-23 6-SOT-23-THIN -40 to 125
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Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | SOT-23 | |
Package Description | TSOT-23, 6 PIN | |
Pin Count | 6 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
Samacsys Manufacturer | Texas Instruments | |
Additional Feature | ALSO OPERATES IN ADJUSTABLE MODE FROM 0.765 TO 34V | |
Analog IC - Other Type | SWITCHING REGULATOR | |
Control Mode | CURRENT-MODE | |
Control Technique | PULSE WIDTH MODULATION | |
Input Voltage-Max | 42 V | |
Input Voltage-Min | 4.5 V | |
Input Voltage-Nom | 12 V | |
JESD-30 Code | R-PDSO-G6 | |
JESD-609 Code | e3 | |
Length | 2.97 mm | |
Moisture Sensitivity Level | 1 | |
Number of Functions | 1 | |
Number of Outputs | 1 | |
Number of Terminals | 6 | |
Operating Temperature-Max | 125 °C | |
Operating Temperature-Min | -40 °C | |
Output Current-Max | 0.3 A | |
Output Voltage-Max | 34 V | |
Output Voltage-Min | 0.765 V | |
Package Body Material | PLASTIC/EPOXY | |
Package Code | VSSOP | |
Package Equivalence Code | TSOP6,.11,37 | |
Package Shape | RECTANGULAR | |
Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH | |
Peak Reflow Temperature (Cel) | 260 | |
Qualification Status | Not Qualified | |
Seated Height-Max | 1 mm | |
Surface Mount | YES | |
Switcher Configuration | BUCK | |
Switching Frequency-Max | 1500 kHz | |
Temperature Grade | AUTOMOTIVE | |
Terminal Finish | Matte Tin (Sn) | |
Terminal Form | GULL WING | |
Terminal Pitch | 0.95 mm | |
Terminal Position | DUAL | |
Time@Peak Reflow Temperature-Max (s) | 30 | |
Width | 1.65 mm |
This table gives cross-reference parts and alternative options found for LMR14203XMKE/NOPB. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LMR14203XMKE/NOPB, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
Part Number | Manufacturer | Composite Price | Description | Compare |
---|---|---|---|---|
LMR14203XMK/NOPB | Texas Instruments | $2.5659 | 4.5V to 42V, 0.3A Step-Down DC/DC Switching Regulator in SOT-23 6-SOT-23-THIN -40 to 125 | LMR14203XMKE/NOPB vs LMR14203XMK/NOPB |
LMR14203XMKX/NOPB | Texas Instruments | Check for Price | 4.5V to 42V, 0.3A Step-Down DC/DC Switching Regulator in SOT-23 6-SOT-23-THIN -40 to 125 | LMR14203XMKE/NOPB vs LMR14203XMKX/NOPB |
A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the PCB. A 2-layer or 4-layer PCB with a solid ground plane is recommended. Additionally, placing vias under the device can help to dissipate heat more efficiently.
To ensure stability and prevent oscillations, it's essential to follow the recommended layout and component selection guidelines. This includes using a low-ESR output capacitor, a high-quality input capacitor, and a well-regulated input voltage. Additionally, the device's output should be decoupled from the input using a ferrite bead or a small inductor.
The maximum input voltage that can be applied to the LMR14203XMKE/NOPB is 42V. Exceeding this voltage can cause damage to the device. It's essential to ensure that the input voltage is within the recommended range to ensure reliable operation.
The selection of the output capacitor depends on the specific requirements of the design. A general guideline is to use a low-ESR capacitor with a value between 10uF to 22uF. The capacitor should be rated for the output voltage and should have a low equivalent series resistance (ESR) to minimize voltage ripple.
The recommended input capacitor value is between 1uF to 10uF, and it should be a low-ESR ceramic capacitor or a film capacitor. The capacitor should be rated for the input voltage and should be placed close to the device's input pins to minimize noise and ripple.