PTLV73312PQDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The PTLV73312PQDBVRQ1 is an automotive-grade 300 mA capacitor-free LDO regulator from Texas Instruments with a fixed 1.2 V output, 1.4 V to 5.5 V input range, and foldback current limiting. It meets AEC-Q100 qualification and is packaged in a space-saving 5-pin SOT-23 for automotive portable device rails.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV73312PQDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV73312PQDBVRQ1?
- AEC-Q100 automotive-qualified 300 mA LDO designed for robust in-vehicle electronic power rails
- Capacitor-free stable operation eliminates the need for an output capacitor, reducing BOM and board area
- Foldback current limiting protects the device and load during short-circuit or overcurrent fault conditions
- Ultra-low dropout voltage of 0.2 V typical (0.49 V max) maximizes efficiency from tight input-output differentials
- Wide input voltage range of 1.4 V to 5.5 V covers automotive battery-backed rail scenarios and LiPo cell outputs
What is PTLV73312PQDBVRQ1 used for?
The PTLV73312PQDBVRQ1 is designed for automotive infotainment modules, ADAS sensor supply rails, and in-vehicle USB charging circuits where AEC-Q100 qualification, compact footprint, and robust overcurrent protection are mandatory. It is also used in telematics units and automotive gateway ECUs that require a stable 1.2 V always-on supply derived from a 3.3 V or 5 V regulated bus.
What are the specifications of PTLV73312PQDBVRQ1?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.49V |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 1.4V |
| JESD-30 Code | R-PDSO-G5 |
| Line Regulation-Max | 0.001% |
| Load Regulation-Max | 0.025% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 1.2168V |
| Output Voltage1-Min | 1.1832V |
| Output Voltage1-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | PMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Voltage Tolerance-Max | 1.4% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PTLV73312PQDBVRQ1 datasheet?
PTLV73312PQDBVRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV73312PQDBVRQ1?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why is foldback current limiting in PTLV73312PQDBVRQ1 important for automotive short-circuit protection?
Foldback current limiting reduces the output current below the 300 mA rated maximum when a short circuit is detected, lowering power dissipation in the 5-pin SOT-23 package and preventing thermal runaway. This protects both the regulator and connected automotive loads during wiring faults typical in harsh vehicle environments.
How does the capacitor-free architecture of PTLV73312PQDBVRQ1 simplify automotive PCB design?
Eliminating the mandatory output capacitor removes a component that must meet automotive grade, temperature range, and vibration specs. This reduces BOM cost and frees PCB area—particularly valuable in compact automotive ECUs where every square millimeter of board space and every AEC-Q100-qualified component adds cost.
What input voltage range does PTLV73312PQDBVRQ1 support, and does it cover 5 V automotive USB rails?
PTLV73312PQDBVRQ1 accepts input voltages from 1.4 V to 5.5 V, which fully covers standard 5 V USB power rails and regulated 3.3 V rails used in automotive infotainment and telematics systems, while the 0.2 V typical dropout ensures the 1.2 V output remains stable until the input drops below approximately 1.4 V.
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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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