TPS2543QRTERQ1 Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
Texas Instruments TPS2543QRTERQ1 is an automotive-qualified USB charging port power switch and controller in a 16-pin QFN. It operates from 4.5 V to 5.5 V with an adjustable current threshold for automatic charging port detection. AEC-Q100 qualified and Pb-free, available from global distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- TPS2543QRTERQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.5364(MOQ 3000)
- 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 TPS2543QRTERQ1?
- AEC-Q100 automotive-qualified USB charging port controller for in-vehicle USB power management
- Adjustable overcurrent threshold enables flexible current limiting from 4.5 V to 5.5 V input range
- Single-channel 16-pin QFN integrates power switch and USB charging port controller in a compact footprint
What is TPS2543QRTERQ1 used for?
The TPS2543QRTERQ1 is designed for automotive USB charging port management in center consoles, door modules, and infotainment systems that require AEC-Q100 Grade reliability. Its adjustable current threshold and integrated power switch enable automatic USB device detection and controlled charging current delivery without external sense resistors. The 16-pin QFN package and 4.5 V to 5.5 V input range suit it for 5 V USB power bus applications where space is limited and automotive temperature range is mandatory.
What are the specifications of TPS2543QRTERQ1?
| Pbfree Code | Yes |
| YTEOL | 3.9 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | USB PD CONTROLLER |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 4.5V |
| JESD-30 Code | S-PQCC-N16 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC16,.12SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Supply Current-Max (Isup) | 0.26mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Philippines |
Where can I find the TPS2543QRTERQ1 datasheet?
TPS2543QRTERQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS2543QRTERQ1?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the TPS2543QRTERQ1 support, and how does it fit into a 5 V automotive USB charging rail?
The TPS2543QRTERQ1 operates from a 4.5 V to 5.5 V input voltage range, which directly covers the standard 5 V USB VBUS rail with typical ±10% tolerance. This makes it a direct-fit power switch for automotive USB charging ports without requiring an upstream regulator, provided the vehicle's USB hub output stays within the 4.5 V to 5.5 V window.
How does the adjustable overcurrent threshold on TPS2543QRTERQ1 simplify charging port current management?
The adjustable threshold pin allows designers to set the current limit by selecting an external resistor value, enabling current limiting from below 1 A up to the device's rated maximum without changing ICs. This single resistor adjustment lets the same TPS2543QRTERQ1 BOM position be reused across multiple USB port configurations—such as 500 mA standard ports and 2.1 A fast-charge ports—in a 4.5 V to 5.5 V automotive system.
What AEC-Q100 Grade does TPS2543QRTERQ1 carry, and what temperature range does that imply for automotive placement?
The TPS2543QRTERQ1 carries AEC-Q100 Grade 1 qualification, which requires operation and reliability verification across -40°C to +125°C junction temperature. This grade covers demanding automotive placements such as near heat sources in engine-adjacent modules or under-dash environments, ensuring the 16-pin QFN device maintains its USB port switching and current-limit functions throughout the vehicle's thermal lifetime.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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 |
|---|---|---|
| 3000+ | $2.5364 | $7609.14 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit