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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.
LMR14203XMKX/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 #
296-38769-1-ND
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DigiKey | IC REG BUCK ADJ 300MA SOT23 Min Qty: 1 Lead time: 12 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) |
2989 In Stock |
|
$1.0335 / $2.0900 | Buy Now |
DISTI #
926-LMR14203XMKXNOPB
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Mouser Electronics | Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.3A SD Vltg Reg A 926-LMR14203XMKENOPB RoHS: Compliant | 1408 |
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$1.0100 / $2.0900 | Buy Now |
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Bristol Electronics | 9000 |
|
RFQ | ||
DISTI #
LMR14203XMKX/NOPB
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TME | PMIC, DC/DC converter, Uin: 4.5÷42VDC, Uout: 0.765÷34VDC, 0.3A Min Qty: 3000 | 0 |
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$1.3000 | RFQ |
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LCSC | Step-down type Adjustable 765mV34V 4.5V42V 300mA SOT-23-6 DC-DC Converters ROHS | 1966 |
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$0.4052 / $0.7753 | Buy Now |
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Vyrian | Other Function Semiconductors | 17248 |
|
RFQ | |
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Win Source Electronics | Conv DC-DC 4.5V to 42V Step Down Single-Out 0.765V to 34V 0.3A 6-Pin TSOT-23 T/R / IC REG BUCK ADJ 0.3A 6TSOT | 41290 |
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$0.4167 / $0.5381 | Buy Now |
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LMR14203XMKX/NOPB
Texas Instruments
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Datasheet
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Compare Parts:
LMR14203XMKX/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 LMR14203XMKX/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 LMR14203XMKX/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 |
---|---|---|---|---|
LMR14203XMKE/NOPB | Texas Instruments | $1.1587 | 4.5V to 42V, 0.3A Step-Down DC/DC Switching Regulator in SOT-23 6-SOT-23-THIN -40 to 125 | LMR14203XMKX/NOPB vs LMR14203XMKE/NOPB |
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 | LMR14203XMKX/NOPB vs LMR14203XMK/NOPB |
A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good copper pour coverage around the device. Additionally, using a 2-3 layer PCB with a solid ground plane can help to reduce thermal resistance.
To ensure stability and prevent oscillations, it's essential to follow the recommended component values and PCB layout guidelines. Additionally, adding a small ceramic capacitor (e.g., 10nF) between the output and ground can help to filter out high-frequency noise and improve stability.
The maximum input voltage that can be applied to the LMR14203XMKX/NOPB is 42V. Exceeding this voltage can cause damage to the device.
The output voltage ripple and noise can be calculated using the equations provided in the datasheet. Additionally, the output voltage ripple can be measured using an oscilloscope and a low-pass filter can be added to reduce the ripple.
The recommended input capacitor value is 10uF to 22uF, and a low-ESR ceramic capacitor (e.g., X5R or X7R) is recommended for optimal performance.