PTLV73325PQDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
PTLV73325PQDBVRQ1 is an automotive-grade capacitor-free 300 mA LDO regulator from Texas Instruments with foldback current limiting, 0.33 V typical dropout voltage, and 3 V to 5.5 V input range in a SOT23-5 package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV73325PQDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV73325PQDBVRQ1?
- Capacitor-free design eliminating external output capacitor requirement, reducing BOM cost and PCB space in automotive applications
- Foldback current limiting protecting against short-circuit and overload conditions with automatic recovery in AEC-Q100 qualified parts
- Ultra-low 0.33 V maximum dropout voltage enabling efficient regulation close to output rail in 3 V to 5.5 V input systems
- 0.001% maximum line regulation and 0.025% maximum load regulation delivering precise, stable output voltage for sensitive analog circuits
What is PTLV73325PQDBVRQ1 used for?
PTLV73325PQDBVRQ1 is designed for automotive infotainment, ADAS sensor nodes, and in-vehicle microcontroller power rails where AEC-Q100 compliance and low dropout voltage are essential. The capacitor-free architecture simplifies PCB design in space-constrained automotive ECUs and telematics units where minimizing component count reduces manufacturing cost and failure points. Its foldback current limit makes it well-suited for powering sensors and communication interfaces in harsh automotive environments with transient voltage events.
What are the specifications of PTLV73325PQDBVRQ1?
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.33V |
| Dropout Voltage1-Nom | 0.5V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 3V |
| 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 | 2.535V |
| Output Voltage1-Min | 2.465V |
| Output Voltage1-Nom | 2.5V |
| 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 PTLV73325PQDBVRQ1 datasheet?
PTLV73325PQDBVRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV73325PQDBVRQ1?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the foldback current limit in PTLV73325PQDBVRQ1 protect automotive power rails during short-circuit events?
PTLV73325PQDBVRQ1 uses foldback current limiting that automatically reduces both the output current and voltage under short-circuit conditions, limiting dissipation in the regulator. At full 300 mA load, the device operates normally, but when a short circuit occurs, the current folds back to a lower level (typically less than 150 mA), preventing thermal damage. Once the fault clears, the regulator recovers automatically without requiring a power cycle.
Can PTLV73325PQDBVRQ1 power a 3.3 V rail from a single-cell Li-ion battery discharging from 4.2 V to 3.0 V?
Yes, PTLV73325PQDBVRQ1 supports an input range of 3 V to 5.5 V and features a maximum dropout voltage of 0.33 V. With a 3.3 V output, the regulator requires a minimum 3.63 V input at rated 300 mA current. As a single-cell Li-ion discharges from 4.2 V to approximately 3.6 V, the LDO maintains regulation; below 3.63 V, the output begins to drop out, limiting usable battery capacity near end-of-discharge.
Which automotive ECU designs benefit most from PTLV73325PQDBVRQ1's capacitor-free architecture?
ADAS sensor interfaces, CAN bus transceivers, and automotive microcontroller reference voltage generators benefit most from PTLV73325PQDBVRQ1's capacitor-free design. Eliminating the output capacitor reduces the BoM by at least 1 component and saves approximately 1 mm² of board area per rail, which adds up significantly in multi-rail automotive ECUs. The AEC-Q100 qualification ensures reliability across the -40°C to 125°C automotive temperature grade range.
What is the line regulation performance of PTLV73325PQDBVRQ1 and why does it matter for sensor power supplies?
PTLV73325PQDBVRQ1 achieves a maximum line regulation of 0.001%, meaning a 1 V change in input voltage causes less than 0.001% change in output voltage. For a 3.3 V output, this translates to less than 33 µV output variation per 1 V input step, making the regulator suitable for precision sensors, ADC reference supplies, and MEMS microphone power rails where sub-millivolt supply stability is required for accurate measurements.
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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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