PTLV73310PQDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
PTLV73310PQDBVRQ1 is an automotive-grade capacitor-free 300 mA LDO linear regulator from Texas Instruments with foldback current limiting and 1 V maximum dropout voltage. It accepts input voltages from 1.4 V to 5.5 V and provides 0.001% line regulation in a compact 5-pin SOT-23 package. Available worldwide through authorized TI distributors for automotive supply chains.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV73310PQDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV73310PQDBVRQ1?
- Capacitor-free operation eliminating the need for external output capacitors and saving BOM cost
- 300 mA output current with foldback current limiting for robust short-circuit protection
- 1 V maximum dropout voltage enabling regulation close to output voltage for high-efficiency designs
- 1.4 V to 5.5 V input voltage range covering Li-ion, 3.3 V, and 5 V rail sources
- 0.001% line regulation ensuring stable output voltage across wide input fluctuations in automotive environments
What is PTLV73310PQDBVRQ1 used for?
PTLV73310PQDBVRQ1 targets automotive portable device power rails where capacitor-free LDO operation reduces PCB area and BOM cost for infotainment accessories, telematics modules, and USB charging ports powered from 5 V automotive rails. Its foldback current limiting and 300 mA output current capability protect downstream loads such as sensors and wireless modules during startup transients and fault conditions. Industrial designers also use it in compact 3.3 V or lower output power stages where a 5-pin SOT-23 footprint minimizes board real estate in space-constrained enclosures.
What are the specifications of PTLV73310PQDBVRQ1?
| Reach Compliance Code | Unknown |
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 1V |
| Dropout Voltage1-Nom | 1V |
| 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 | 1.014V |
| Output Voltage1-Min | 0.986V |
| Output Voltage1-Nom | 1V |
| 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 PTLV73310PQDBVRQ1 datasheet?
PTLV73310PQDBVRQ1 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV73310PQDBVRQ1?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of PTLV73310PQDBVRQ1 and how does it affect headroom requirements in 3.3 V systems?
Maximum dropout voltage is 1 V, meaning PTLV73310PQDBVRQ1 requires at least 4.3 V input to maintain a regulated 3.3 V output at 300 mA, well within a 5 V USB or automotive rail, ensuring stable regulation even during 5 V input droops as low as 4.3 V under load.
How does foldback current limiting on PTLV73310PQDBVRQ1 protect downstream circuits differently from simple current limiting?
Foldback current limiting reduces output current progressively as output voltage falls during a short circuit, limiting power dissipation to well below the 300 mA maximum rated current times the full input-to-output voltage drop, preventing thermal runaway and protecting both the LDO and the shorted load from damage in automotive and industrial environments.
For a wireless sensor module powered from a 3.7 V Li-ion cell, does PTLV73310PQDBVRQ1 maintain regulation across the battery discharge curve?
With a 1.4 V minimum input requirement and 1 V maximum dropout, PTLV73310PQDBVRQ1 can maintain a regulated output down to 2.4 V output from a 3.7 V Li-ion cell that discharges to approximately 3.0 V at end-of-life, covering the majority of the 3.7 V to 2.7 V battery discharge range for sensor nodes with outputs below 2.5 V.
Why is the capacitor-free design of PTLV73310PQDBVRQ1 advantageous for automotive infotainment accessories?
Capacitor-free operation eliminates 1 to 2 bulk output capacitors, saving approximately 2 mm x 4 mm of PCB area per regulator in constrained automotive accessory boards, while also removing capacitor ESR dependency from stability calculations and enabling direct LDO integration adjacent to space-sensitive RF or digital ICs in 5-pin SOT-23 footprint.
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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.
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