PTLV73315PQDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments PTLV73315PQDBVRQ1 is an AEC-Q100 automotive-grade capacitor-free 300 mA LDO regulator with foldback current limiting in a 5-pin SOT-23 package. It operates from 2 V to 5.5 V input, delivers a fixed 1.5 V output with only 0.44 V maximum dropout, and suits portable automotive applications. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV73315PQDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV73315PQDBVRQ1?
- AEC-Q100 qualified automotive-grade LDO ensuring reliability across the full -40°C to +125°C automotive temperature range
- Capacitor-free stable operation eliminates mandatory output bulk capacitor, reducing BOM cost and PCB area
- 300 mA output current with foldback current limiting providing self-protection against short-circuit conditions
- Ultra-low 0.44 V maximum dropout voltage enabling operation even as battery voltage falls near the output rail
What is PTLV73315PQDBVRQ1 used for?
The PTLV73315PQDBVRQ1 is designed for automotive infotainment, cluster, and ADAS sensor modules where a compact, reliable 1.5 V supply must be derived from 3.3 V or 5 V buses without bulk capacitors. Its AEC-Q100 qualification and foldback current limit make it suitable for body control modules and keyless entry systems that require fault-tolerant power management in harsh automotive environments. The 5-pin SOT-23 footprint minimizes board area in space-constrained automotive circuit boards.
What are the specifications of PTLV73315PQDBVRQ1?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.44V |
| Dropout Voltage1-Nom | 0.5V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2V |
| 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 | 1.521V |
| Output Voltage1-Min | 1.479V |
| Output Voltage1-Nom | 1.5V |
| 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 PTLV73315PQDBVRQ1 datasheet?
PTLV73315PQDBVRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV73315PQDBVRQ1?
Compatible alternatives and drop-in replacements for PTLV73315PQDBVRQ1:
Frequently Asked Questions
What does AEC-Q100 qualification mean for PTLV73315PQDBVRQ1 in automotive designs?
AEC-Q100 qualification confirms the PTLV73315PQDBVRQ1 has passed automotive-grade stress tests including temperature cycling from -40°C to +125°C, humidity resistance, and electromigration screening. This makes it acceptable to Tier 1 automotive suppliers under IATF 16949 quality frameworks, reducing the component qualification burden for new automotive power rail designs by eliminating the need for custom stress testing.
How does capacitor-free operation of PTLV73315PQDBVRQ1 benefit board layout?
Capacitor-free LDO stability eliminates the mandatory 1 µF to 10 µF output bulk capacitor typically required by conventional LDOs, saving approximately 4 mm² to 9 mm² of PCB area per rail in a 0402 or 0603 footprint. It also removes ESR sensitivity, which simplifies capacitor selection and prevents output oscillation when ceramic capacitors with near-zero ESR are used in high-density automotive PCB layouts.
What is the foldback current limit on PTLV73315PQDBVRQ1 and how does it protect the circuit?
The foldback current limit reduces the output current as the output voltage drops below the regulation point, limiting power dissipation inside the LDO during a short-circuit fault. At a dead short the current folds back to approximately 150 mA instead of the nominal 300 mA, reducing die temperature rise and preventing thermal runaway even in a sustained fault condition without an external current sense resistor.
Can PTLV73315PQDBVRQ1 supply 300 mA from a 3.3 V rail throughout the entire automotive temperature range?
Yes, PTLV73315PQDBVRQ1 maintains 300 mA output current at 1.5 V with a 3.3 V input, as the 1.8 V headroom exceeds the 0.44 V maximum dropout voltage across -40°C to +125°C. The dropout voltage has a mild positive temperature coefficient, so the margin is actually larger at low temperature and only tightest at +125°C where precise input voltage budgeting is required.
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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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