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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.
LMR14203XMK/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 #
29AH1070
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Newark | Buck, 0.3A, 42Vin, Topology:Buck (Step Down), Input Voltage Min:4.5V, Input Voltage Max:42V, No. Of Outputs:1Outputs, Dc/Dc Converter Ic Case:Sot-23, No. Of Pins:6Pins, Output Current:300Ma, Output Voltage Min:765Mv, Output Voltagerohs Compliant: Yes |Texas Instruments LMR14203XMK/NOPB RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape | 416 |
|
$2.5600 | Buy Now |
DISTI #
296-35194-1-ND
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DigiKey | IC REG BUCK ADJ 300MA SOT23 Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) |
1116 In Stock |
|
$1.2441 / $2.4600 | Buy Now |
DISTI #
926-LMR14203XMK/NOPB
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Mouser Electronics | Switching Voltage Regulators SIMPLE SWITCHER 42 V in 0.3A SD Vltg Reg A 926-LMR14203XMKENOPB RoHS: Compliant | 1072 |
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$1.2100 / $2.4600 | Buy Now |
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Bristol Electronics | 2117 |
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RFQ | ||
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Quest Components | SWITCHING REGULATOR, 1500 KHZ SWITCHING FREQ-MAX, PDSO6 | 800 |
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$1.3724 / $3.6596 | Buy Now |
DISTI #
LMR14203XMK/NOPB
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TME | PMIC, DC/DC converter, Uin: 4.5÷42VDC, Uout: 0.765÷34VDC, 0.3A Min Qty: 1000 | 0 |
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$1.5600 | RFQ |
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NexGen Digital | 1 |
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RFQ | ||
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LCSC | Step-down type Adjustable 765mV34V 300mA 4.5V42V SOT-23-6 DC-DC Converters ROHS | 20 |
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$0.6258 / $1.1159 | Buy Now |
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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 | 40220 |
|
$0.4167 / $0.5381 | Buy Now |
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LMR14203XMK/NOPB
Texas Instruments
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Datasheet
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Compare Parts:
LMR14203XMK/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
|
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 LMR14203XMK/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 LMR14203XMK/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 | LMR14203XMK/NOPB vs LMR14203XMKE/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 in the output voltage, it is recommended to use a minimum output capacitance of 10uF, and to place the output capacitor close to the output pin. Additionally, using a low-ESR capacitor and minimizing the distance between the output capacitor and the output pin can help to reduce oscillations.
The recommended input capacitor value is 10uF to 22uF, and a low-ESR ceramic capacitor (X5R or X7R dielectric) is recommended. The input capacitor should be placed close to the input pin to minimize noise and ensure optimal performance.
To protect the device from overvoltage and undervoltage conditions, it is recommended to use a voltage supervisor or a reset IC to monitor the input voltage and reset the device if it falls outside the recommended operating range. Additionally, using a TVS diode or a zener diode can help to protect the device from voltage spikes and transients.
The recommended operating temperature range for the LMR14203XMK/NOPB is -40°C to 125°C. However, the device can operate up to 150°C with reduced performance and reliability.