PTPS78401QDBVRQ1 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The PTPS78401QDBVRQ1 is an automotive-grade 300 mA adjustable low-dropout (LDO) linear regulator from Texas Instruments in a 5-pin SOT-23 package. Key specs: 1.65V to 6V input range, 200 mV typical dropout voltage, and 0.005%/V line regulation for precision voltage control. Available in stock with worldwide shipping for automotive system designs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- PTPS78401QDBVRQ1 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Automotive-qualified (AEC-Q100) 300 mA LDO regulator with adjustable output voltage meets stringent automotive supply chain and reliability requirements
- Ultra-low 200 mV typical dropout voltage (245 mV maximum) maximizes efficiency in battery-powered and low-headroom automotive rail applications
- Wide input voltage range from 1.65V to 6V supports diverse automotive power rails including post-buck converter outputs and regulated battery supply lines
- Excellent 0.005%/V line regulation and 1.25% maximum load regulation ensure stable output for noise-sensitive automotive sensors and microcontrollers
Applications
The PTPS78401QDBVRQ1 is designed for automotive ECU power management, providing clean regulated voltages to microcontrollers, sensors, and communication ICs in ADAS, body electronics, and infotainment systems. Its adjustable output and low dropout characteristics make it ideal for post-regulation of switching converter outputs in automotive power trees. The compact SOT-23 package enables space-efficient implementation on automotive PCBs with tight layout constraints.
Specifications
| Date Of Intro | 2020-02-21 |
| YTEOL | 0 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.245V |
| Dropout Voltage1-Nom | 0.2V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.65V |
| JESD-30 Code | R-PDSO-G5 |
| Line Regulation-Max (%/V) | 0.005 |
| Load Regulation-Max(%) | 1.25% |
| 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 | 5.5V |
| Output Voltage1-Min | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP5,.11,38 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Packing Method | 3000 |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the PTPS78401QDBVRQ1 and what are its key electrical specifications?
The PTPS78401QDBVRQ1 is an automotive-qualified 300 mA adjustable low-dropout (LDO) linear regulator from Texas Instruments. Key specifications include a 1.65V to 6V input voltage range, a typical dropout voltage of 200 mV (245 mV maximum), 0.005%/V line regulation, and 1.25% maximum load regulation. It is housed in a compact 5-pin SOT-23 package.
Is the PTPS78401QDBVRQ1 suitable for automotive applications?
Yes, the PTPS78401QDBVRQ1 is specifically designed for automotive applications and meets AEC-Q100 qualification standards. It was introduced in February 2020 and is used in automotive ECUs, ADAS modules, body control modules, and infotainment power management systems. The device's wide input range, adjustable output, and tight regulation specs ensure reliable operation across automotive environmental conditions.
What is the dropout voltage of the PTPS78401QDBVRQ1?
The PTPS78401QDBVRQ1 has a nominal dropout voltage of 200 mV and a maximum dropout voltage of 245 mV at full 300 mA load. This low dropout characteristic allows the regulator to maintain output regulation even when the input-to-output voltage differential is minimal, which is critical for maximizing efficiency in automotive battery-powered rail designs with tight voltage headroom.
What package does the PTPS78401QDBVRQ1 use and where can I buy it?
The PTPS78401QDBVRQ1 uses a 5-pin SOT-23 surface-mount package (JESD-30 code R-PDSO-G5), which is a compact and widely used footprint for low-power regulators. It is available from authorized Texas Instruments distributors worldwide, including Digi-Key, Mouser, and Arrow Electronics, with in-stock inventory for immediate shipment to support automotive production schedules.
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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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