LM20145QMHX/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM20145QMHX/NOPB is an automotive-grade synchronous step-down DC/DC switching regulator by Texas Instruments in a 16-pin SO package. Key specs: 2.95 V to 5.5 V input, adjustable output down to 0.8 V, current-mode PWM control. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LM20145QMHX/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4300(MOQ 2500)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM20145QMHX/NOPB?
- Automotive-grade AEC-Q100 qualified regulator operating across -40°C to +125°C for vehicle power rail designs
- Adjustable output voltage down to 0.8 V with current-mode PWM control enabling precise multi-rail SoC power delivery
- 2.95 V to 5.5 V input range supporting direct conversion from USB 5 V and 3.3 V system rails with high efficiency
What is LM20145QMHX/NOPB used for?
LM20145QMHX/NOPB is designed for automotive infotainment, ADAS modules, and body control units requiring AEC-Q100 reliability with adjustable low-voltage outputs for modern SoCs and DSPs. Its 2.95 V to 5.5 V input range allows direct derivation of 0.8 V to 3.3 V core and I/O rails from a regulated 5 V or 3.3 V bus in gateway ECUs and camera systems. The device is also employed in industrial embedded computing platforms where compact 16-pin SO packages and current-mode control deliver fast transient response for processor loads.
What are the specifications of LM20145QMHX/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | ALSO HAS ADJUSTABLE OUTPUT VOLTAGE DOWN TO 0.8V |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.95V |
| Input Voltage-Nom | 5V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 5V |
| Output Voltage-Min | 0.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 750kHz |
| Technology | BICMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM20145QMHX/NOPB datasheet?
LM20145QMHX/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM20145QMHX/NOPB?
Compatible alternatives and drop-in replacements for LM20145QMHX/NOPB:
Switching Regulator, Current-mode, 8.1A, 825kHz Switching Freq-Max, PDSO16
Frequently Asked Questions
How low can LM20145QMHX/NOPB regulate its output voltage and why does this matter for modern SoC power rails?
LM20145QMHX/NOPB adjusts its output voltage down to 0.8 V, which directly matches the core supply requirements of sub-1 V advanced process SoCs and FPGAs used in ADAS and automotive vision processors. Providing a stable 0.8 V rail from a 3.3 V or 5 V input eliminates a dedicated LDO stage, reducing BOM count by 3 to 5 components and improving overall power conversion efficiency from the primary automotive 12 V bus.
What AEC-Q100 grade is LM20145QMHX/NOPB qualified to and what does it mean for a -40°C cold-start scenario?
LM20145QMHX/NOPB is AEC-Q100 qualified for operation from -40°C to +125°C, ensuring reliable start-up and regulation during winter cold-start conditions where under-hood temperatures can reach -40°C. The current-mode PWM control loop remains stable across this full temperature range, preventing output voltage shifts or oscillation that would damage SoC power rails during the first seconds of vehicle ignition when the battery voltage may sag to below 10 V.
For a 5 V USB to 1.8 V LPDDR4 memory rail, how does LM20145QMHX/NOPB reduce power loss compared to a linear regulator?
A linear regulator dropping 5 V to 1.8 V wastes 3.2 V × load current as heat — at 400 mA that is 1.28 W of dissipation requiring forced cooling. LM20145QMHX/NOPB with typical 85% to 90% efficiency dissipates only 90 mW to 140 mW at the same 400 mA load, reducing heat by over 90%. This thermal improvement allows the 16-pin SO package to operate reliably without a heatsink in automotive underdash environments reaching 85°C ambient.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2500+ | $2.4300 | $6075.00 |
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