PATL431LIAQDBZRQ1 Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
Texas Instruments PATL431LIAQDBZRQ1 is an automotive-grade, high-bandwidth, low-IQ programmable shunt voltage regulator with a 2.5 V nominal output (2.475 V to 2.525 V range) in a 3-pin SOT-23 package. It is AEC-Q100 qualified for automotive applications requiring a stable precision shunt reference. Available from authorized TI distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PATL431LIAQDBZRQ1 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
- AEC-Q100 automotive-qualified programmable shunt regulator with 2.5 V nominal reference (2.475 V to 2.525 V output range) for reliable in-vehicle voltage regulation
- High-bandwidth, low-IQ architecture minimizing quiescent current consumption in always-on automotive ECU power-management circuits and battery-monitoring systems
- Compact 3-pin SOT-23 (R-PDSO-G3) plastic package enabling tight PCB integration in space-constrained automotive control modules introduced since May 2019
Applications
PATL431LIAQDBZRQ1 is used as a programmable shunt voltage reference in automotive ECU power supplies, battery management systems (BMS), and LED driver feedback networks where AEC-Q100 qualification and a precise 2.5 V output across the automotive temperature range are required. Its low quiescent current makes it well suited for always-on control modules, sensor supply regulators, and feedback divider networks in hybrid and electric vehicle powertrain controllers.
Specifications
| Date Of Intro | 2019-05-10 |
| YTEOL | 0 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 2.525V |
| Output Voltage-Min | 2.475V |
| Output Voltage-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Screening Level | AEC-Q100 |
| Supply Voltage-Max (Vsup) | 36V |
| Supply Voltage-Min (Vsup) | 2.475V |
| Surface Mount | YES |
| Temp Coef of Voltage-Max | 63.529ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Trim/Adjustable Output | YES |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for PATL431LIAQDBZRQ1:
Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, PDSO3
Frequently Asked Questions
How tight is the output voltage tolerance of PATL431LIAQDBZRQ1 and why does it matter for automotive feedback loops?
PATL431LIAQDBZRQ1 provides a 2.5 V nominal output with a min-max range of 2.475 V to 2.525 V, representing a ±1% tolerance. In automotive feedback dividers for DC-DC converters, this tight 50 mV band ensures the regulated output voltage remains within specification across the full AEC-Q100 temperature range, preventing ECU malfunction under extreme under-hood thermal conditions.
What AEC qualification does PATL431LIAQDBZRQ1 carry and which automotive system tiers can use it?
PATL431LIAQDBZRQ1 is AEC-Q100 Grade qualified, meaning it passes automotive semiconductor reliability standards for temperature cycling, humidity resistance, and electrostatic discharge. This qualification makes it suitable for Tier 1 and Tier 2 automotive ECU designs including powertrain control modules, ADAS sensor power supplies, and body electronics that require components rated for harsh in-vehicle environments.
How does the 3-pin SOT-23 package of PATL431LIAQDBZRQ1 simplify integration in compact automotive PCB designs?
The 3-pin SOT-23 package occupies less than 3 mm × 2 mm of PCB area, making PATL431LIAQDBZRQ1 ideal for space-constrained automotive control boards where a precise 2.5 V shunt reference must be placed close to a feedback resistor network. The small footprint reduces routing length, minimizing parasitic effects on the reference voltage accuracy in automotive BMS and ECU power stages.
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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.
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