PTLV73330PQDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
PTLV73330PQDBVRQ1 is an AEC-Q100 automotive-grade 300 mA capacitor-free LDO regulator with foldback current limiting, 3.3 V fixed output, and 3.5 V to 5.5 V input range in a compact SOT-23-5 package. Features 0.33 V typical dropout voltage and 0.001% line regulation for precise power delivery. From $0.85 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV73330PQDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 Grade qualified automotive LDO with 300 mA output current and foldback current limit for robust short-circuit protection in vehicular systems
- Capacitor-free stable operation eliminates mandatory output capacitor, reducing BOM cost and PCB area in space-constrained automotive sensor and infotainment modules
- Ultra-low 0.33 V typical dropout at 300 mA from a 3.5 V to 5.5 V input rail with 0.001% line regulation for stable 3.3 V supply even under load transients
Applications
PTLV73330PQDBVRQ1 powers automotive microcontrollers, CAN transceivers, and sensor modules within body electronics and ADAS subsystems where AEC-Q100 qualification and foldback current limiting are required for system protection. Its capacitor-free output stabilization removes the need for a mandatory 1 µF to 10 µF output capacitor, simplifying PCB layout in tight under-hood environments with vibration constraints. The device also regulates 3.3 V rails in infotainment clusters, tire pressure monitors, and gateway ECUs that draw up to 300 mA from a 5 V automotive bus with supply fluctuations between 3.5 V and 5.5 V.
Specifications
| 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 | 3.5V |
| 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 | 3.042V |
| Output Voltage1-Min | 2.958V |
| Output Voltage1-Nom | 3V |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What automotive qualification standard does PTLV73330PQDBVRQ1 meet, and what does that mean for system reliability?
PTLV73330PQDBVRQ1 is AEC-Q100 Grade qualified, the standard stress-test qualification for integrated circuits used in automotive applications; it verifies operation from -40°C to +125°C junction temperature under automotive electrical stress conditions, confirming the device can withstand under-hood thermal cycling, load-dump transients, and supply ripple typical of 12 V vehicular power systems.
How does the foldback current limiting in PTLV73330PQDBVRQ1 protect downstream circuits during a short circuit?
Foldback current limiting reduces output current progressively as output voltage drops below regulation, so during a short circuit the device limits current to well below the 300 mA rated value — typically 100–150 mA at zero output voltage — preventing excessive power dissipation in the SOT-23-5 package and protecting both the LDO die and the shorted load from thermal damage.
What input voltage range does PTLV73330PQDBVRQ1 support, and how does it behave near the dropout threshold?
PTLV73330PQDBVRQ1 accepts input voltages from 3.5 V to 5.5 V (absolute maximum 6 V) and maintains a regulated 3.3 V output as long as the input exceeds 3.3 V plus the 0.33 V typical dropout voltage; when the input falls to 3.63 V, the device enters dropout and the output tracks the input minus 0.33 V, delivering the 0.025% load regulation specified across the load range.
For a CAN bus transceiver board in an automotive ECU, why is the capacitor-free design of PTLV73330PQDBVRQ1 useful?
CAN transceiver supply pins typically require only 100 nF of bypass capacitance; the capacitor-free stable operation of PTLV73330PQDBVRQ1 eliminates a mandatory 1 µF to 10 µF bulk output capacitor, saving approximately 4 mm² of PCB real estate on a constrained 50 mm × 50 mm ECU board and removing a potential reliability concern caused by vibration-induced capacitor derating under automotive vibration profiles.
How does PTLV73330PQDBVRQ1 compare to TLV73330PDBVR for an automotive design that requires qualification documents?
PTLV73330PQDBVRQ1 is the AEC-Q100 Grade qualified version of TLV73330PDBVR and ships with a qualification test report and PPAP-compatible documentation required by Tier 1 automotive suppliers; the commercial TLV73330PDBVR shares the same 300 mA, 3.3 V, SOT-23-5 electrical specifications but lacks formal automotive qualification, making the PTLV variant mandatory in designs submitted to OEM quality gates.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”