TPS746125PQWDRBRQ1 Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
The TPS746125PQWDRBRQ1 is an automotive-grade 1 A fixed-output LDO voltage regulator from Texas Instruments featuring low quiescent current, high PSRR, 190 mV typical dropout voltage, and a power good indicator in a compact 8-SON package. It operates from 1.5 V to 6 V input voltage and is rated for -40°C to 125°C automotive temperature range. Available from authorized distributors worldwide with competitive pricing and global shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS746125PQWDRBRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low 190 mV typical dropout voltage (625 mV max) enabling efficient regulation from closely spaced supply rails in automotive systems
- AEC-Q100 automotive-grade qualification supporting -40°C to 125°C operation for under-hood and harsh-environment vehicle electronics
- Integrated power good output providing real-time supply health indication for sequencing and system fault detection
- High PSRR performance combined with low quiescent current making it ideal for noise-sensitive RF and analog automotive subsystems
Applications
The TPS746125PQWDRBRQ1 is designed for automotive electronic control units (ECUs), ADAS sensor modules, infotainment systems, and body control modules requiring a clean, stable low-dropout supply rail with minimal quiescent current. Its high PSRR makes it well suited for powering noise-sensitive RF transceivers, camera sensors, and precision ADCs in automotive environments. The power good output simplifies power sequencing in multi-rail automotive SoC and microcontroller supply designs.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-02-29 |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.625V |
| Dropout Voltage1-Nom | 0.19V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.5V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.0075% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 1.2687V |
| Output Voltage1-Min | 1.2312V |
| Output Voltage1-Nom | 1.25V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,25 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.5% |
| Package | Small Outline 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the TPS746125PQWDRBRQ1 and why does it matter?
The TPS746125PQWDRBRQ1 has a typical dropout voltage of 190 mV and a maximum of 625 mV at full 1 A load. Low dropout voltage is critical in automotive battery-backed and post-regulator supply chains where the input and output rails are closely spaced, as it allows the LDO to maintain regulation with minimal headroom, improving overall efficiency.
What input voltage range does the TPS746125PQWDRBRQ1 support?
The TPS746125PQWDRBRQ1 operates from a minimum input voltage of 1.5 V to a maximum of 6 V (6.5 V absolute maximum). This range is compatible with post-buck regulator outputs and Li-ion battery supplies commonly found in automotive infotainment, ADAS, and gateway ECU power architectures.
Is the TPS746125PQWDRBRQ1 qualified for automotive applications?
Yes, the TPS746125PQWDRBRQ1 carries the -Q1 automotive qualification suffix, indicating it meets AEC-Q100 reliability standards for automotive-grade ICs. It is rated for operation from -40°C to 125°C, making it suitable for under-hood, passenger compartment, and harsh-environment automotive electronics.
What package does the TPS746125PQWDRBRQ1 use and what are its advantages?
The TPS746125PQWDRBRQ1 is housed in an 8-pin SON (small outline no-lead) package (JESD-30 code S-PDSO-N8), which offers a very small PCB footprint with an exposed pad for improved thermal dissipation. The no-lead package also provides good solder joint reliability under automotive thermal cycling conditions.
Does the TPS746125PQWDRBRQ1 include a power good output and how is it used?
Yes, the TPS746125PQWDRBRQ1 integrates a power good (PG) output that asserts high when the output voltage reaches its regulated level. This signal can be used to enable downstream circuits, control power sequencing between multiple supply rails, or trigger system fault handling logic in automotive ECUs and SoC power management architectures.
Related Guides
TPS54160DGQR Selection Guide: How to Choose a 60V Step-Down Buck Converter
Complete selection guide for the TPS54160DGQR 60V/1.5A step-down converter. Compare specs, alternatives, and sourcing options for industrial and automotive designs.
May 20, 2026
LMV932MM Dual Low-Voltage CMOS Op-Amp: Application Design Guide
Complete application design guide for the LMV932MM dual rail-to-rail CMOS op-amp: supply decoupling, RRIO design rules, stability, and recommended circuits for 1.8V–5.5V battery-powered systems.
May 20, 2026
TL084CN Equivalent and Replacements: JFET-Input Quad Op-Amp Comparison Guide
Compare TL084CN with TL074, LF347, and LM324 quad op-amps. Pin-compatible equivalents, key specs, and when to choose each for your analog design.
May 20, 2026
TPS386000RGPR Quad Voltage Supervisor: Selection and Sourcing Guide (2025)
Compare TPS386000RGPR with TPS386040RGPR, TPS3700, and TPS3823 voltage supervisors. Key specs, threshold programming, watchdog options, and sourcing tips.
May 20, 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
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.”