LM20143QMHE/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM20143QMHE/NOPB is an AEC-Q100 automotive-grade 3A synchronous buck regulator in 16-HTSSOP, supporting 2.95 V to 5.5 V input and 0.8 V to 3.3 V adjustable output. Operates from -40°C to 125°C. Available from stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LM20143QMHE/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.9500(MOQ 500)
- 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 LM20143QMHE/NOPB?
- AEC-Q100 automotive-grade qualification supporting -40°C to 125°C junction temperature range for harsh environment reliability
- 3A synchronous buck with current-mode PWM control and adjustable switching frequency, enabling optimized inductor and capacitor selection
- Input range 2.95 V to 5.5 V with adjustable output from 0.8 V to 3.3 V covering core, I/O, and memory rail requirements in a single 16-HTSSOP package
What is LM20143QMHE/NOPB used for?
The LM20143QMHE/NOPB is designed for automotive ADAS, infotainment, and body control modules that require a regulated 3A point-of-load supply from a 3.3 V or 5 V system bus over the -40°C to 125°C operating range. Its adjustable switching frequency and synchronous rectification reduce EMI and improve efficiency in noise-sensitive in-vehicle electronics. The HTSSOP-16 package integrates well with standard automotive PCB processes, making it suitable for space-constrained under-hood and cabin power conversion stages.
What are the specifications of LM20143QMHE/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 3.3V |
| 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 | 3A |
| Output Voltage-Max | 5V |
| Output Voltage-Min | 0.8V |
| Output Voltage-Nom | 2.7V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 1500kHz |
| 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 LM20143QMHE/NOPB datasheet?
LM20143QMHE/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM20143QMHE/NOPB?
Compatible alternatives and drop-in replacements for LM20143QMHE/NOPB:
Switching Regulator, Current-mode, 5.3A, 1650kHz Switching Freq-Max, PDSO16
Switching Regulator, Current-mode, 3A, 1500kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What output current and voltage range does the LM20143QMHE/NOPB support for automotive point-of-load designs?
The LM20143QMHE/NOPB delivers up to 3 A continuous output current with an adjustable output voltage of 0.8 V to 3.3 V, set by an external resistor divider. This range covers standard logic rails such as 1.0 V core, 1.8 V I/O, and 3.3 V peripherals from a single 5 V automotive supply rail.
How does the adjustable switching frequency of the LM20143QMHE/NOPB benefit automotive EMI compliance?
By programming the switching frequency via a single external resistor from approximately 300 kHz to 2 MHz, engineers can spread-spectrum the fundamental and harmonics away from sensitive AM/FM radio bands (530 kHz to 108 MHz) and AM band (535 kHz to 1.7 MHz), helping meet CISPR 25 Class 5 automotive radiated emissions limits without additional filtering.
What thermal performance does the LM20143QMHE/NOPB offer and how does it sustain 3A in under-hood environments?
The 16-HTSSOP package provides a thermal pad on the underside with a junction-to-board thermal resistance (θJB) of approximately 25°C/W. At 3A load and 125°C ambient under-hood temperature, the device remains within its 150°C junction temperature limit when mounted on a 2-layer PCB with a 1 oz copper pour and a minimum 400 mm² ground plane.
For an ADAS SoC supply needing 1.8 V at 2.5 A, how does the LM20143QMHE/NOPB compare to a discrete PMOS LDO solution?
A discrete PMOS LDO dropping 5 V to 1.8 V at 2.5 A would dissipate 8 W as heat, requiring a large heatsink. The LM20143QMHE/NOPB synchronous buck achieves greater than 90% efficiency at this operating point, dissipating under 0.8 W, and fits entirely in the 16-HTSSOP footprint of roughly 30 mm², eliminating the heatsink and reducing total solution size by over 60%.
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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 |
|---|---|---|
| 500+ | $3.0300 | $1515.00 |
| 1000+ | $2.9900 | $2990.00 |
| 2500+ | $2.9500 | $7375.00 |
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