Package / form factor
Texas Instruments
LMR14203XMKX/NOPB
Texas Instruments LMR14203XMKX/NOPB 42 V, 0.3 A Buck Regulator
LMR14203XMKX/NOPB is the exact active Texas Instruments orderable for a 4.5 V to 42 V, 0.3 A SIMPLE SWITCHER buck regulator in a 6-pin SOT-23-THIN package.
- Manufacturer
- Texas Instruments
- Category
- Active Components
- Family
- Power Management ICs
- Package / form
- SOT-23-THIN (DDC)
- Trusted sources
- 1
- Datasheet
- Download PDF
Mounting
No verified mounting field is published.
Lifecycle
Active / Production
RoHS
Yes
REACH
No verified REACH statement is published.
Technical documentation
Documents, compliance, and product status
Official datasheet
Datasheet PDF
LMR14203XMKX/NOPB is the exact active Texas Instruments orderable for a 4.5 V to 42 V, 0.3 A SIMPLE SWITCHER buck regulator in a 6-pin SOT-23-THIN package.
Download PDFLifecycle
Active / Production
Active / Production
Package / form factor
SOT-23-THIN (DDC)
No verified mounting field is published.
RoHS / REACH
Compliance status
- RoHS: Yes
- REACH: No verified REACH statement is published.
Applications
Published application context
- 5 V, 12 V, and 24 V point-of-load conversion; industrial distributed power; power meters; portable instruments
- PWM buck (step-down) DC/DC regulator
Related catalog pages
Manufacturer, family, and category
Parameter table
Verified parameters
| Product type | PWM buck (step-down) DC/DC regulator |
|---|---|
| Input voltage | 4.5 V to 42 V |
| Output voltage | 0.765 V to 34 V |
| Maximum output current | 0.3 A |
| Switching frequency | 1.25 MHz |
| Typical efficiency | Up to 85% |
| Typical shutdown current | 16 uA |
| Protection | Short-circuit protection, thermal shutdown, and input and gate-drive undervoltage lockout |
| Package | SOT-23-THIN (DDC) |
| Pins | 6 |
| Package dimensions | 2.97 x 1.65 x 1.00 mm |
| Operating temperature | -40 C to 125 C |
| Carrier | Large tape and reel |
| Package quantity | 3000 |
| RoHS | Yes |
| Lifecycle | Active / Production |
| Series | LMR14203 SIMPLE SWITCHER |
| Applications | 5 V, 12 V, and 24 V point-of-load conversion; industrial distributed power; power meters; portable instruments |
Manufacturer
Texas Instruments
Browse 16619 products from this manufacturer.
Family / category
Power Management ICs
10 products are available in this family.
Family: Power Management ICs
Cross references
Available after technical review
Cross-reference candidates require package, electrical, lifecycle, and application compatibility review.
No reviewed cross references are available for this part.
Alternative parts
Available after technical review
Alternative parts are listed only after the available technical documentation supports a compatible substitution.
No reviewed alternatives are available for this part.
Pricing and sourcing
Request a quote for LMR14203XMKX/NOPB
Request pricing, lead time, documentation, and sourcing support for this part number.
FAQ
Buying and verification notes
Does the storefront publish live stock or live pricing?
No. RoMaks operates an RFQ-first catalog. Product pages can show exact part identity, available documents, and technical context without presenting unconfirmed stock or pricing.
What happens when a datasheet, image, or lifecycle value is missing?
The field remains unavailable until supporting documentation is confirmed. Similar-part data and generic placeholders are not presented as product facts.
How should buyers submit multiple parts?
Use the RFQ basket or BOM-oriented request flow so quantities, manufacturer context, target price, and sourcing notes can move through the commercial workflow together.
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