TPS78401QWDRBRQ1 Texas Instruments Integrated Circuit (Other) In Stock
The TPS78401QWDRBRQ1 is an automotive-qualified, adjustable ultra-low-dropout LDO voltage regulator from Texas Instruments with 115 mV typical dropout voltage and 1.65V to 6V input range. It delivers high PSRR and low noise output for sensitive analog and RF power rails in AEC-Q100 qualified automotive systems. Available in 8-pin WSON package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS78401QWDRBRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 automotive qualification with 15-year YTEOL ensures long-term reliability in demanding automotive power supply designs
- Ultra-low 115 mV typical dropout voltage maximizes efficiency and extends usable input voltage range in battery-powered automotive systems
- Adjustable output voltage supports flexible power rail design across multiple supply levels with a single LDO component
- Wide 1.65V to 6V input voltage range with 0.9V maximum dropout enables compatibility with Li-ion battery and automotive 5V rail applications
Applications
The TPS78401QWDRBRQ1 is designed for automotive infotainment, ADAS, and body electronics systems requiring a clean, low-noise power supply for microcontrollers, sensors, and analog front-end circuits. Its ultra-low dropout voltage makes it particularly effective in battery-powered automotive subsystems where maximizing runtime and minimizing thermal dissipation are critical. The adjustable output and high PSRR also make it suitable for powering RF transceivers, precision ADCs, and audio codecs in automotive and industrial environments.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-07-03 |
| YTEOL | 15 |
| Adjustability | ADJUSTABLE |
| Dropout Voltage1-Max | 0.9V |
| Dropout Voltage1-Nom | 0.115V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.65V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e4 |
| Line Regulation-Max (%/V) | 0.006 |
| Load Regulation-Max(%) | 0.8333% |
| 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 | 0.75V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.11,25 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 0.5% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of the TPS78401QWDRBRQ1?
The TPS78401QWDRBRQ1 features a typical dropout voltage of just 115 mV, with a maximum of 0.9V, making it an ultra-low-dropout (ULDO) regulator. This extremely low dropout allows the device to maintain regulation even when the input voltage is only slightly above the output voltage, maximizing efficiency in battery-powered and automotive low-voltage applications.
Is the TPS78401QWDRBRQ1 AEC-Q100 qualified for automotive use?
Yes, the TPS78401QWDRBRQ1 carries AEC-Q100 automotive qualification, as indicated by the 'Q1' suffix. It has a YTEOL (Years to End of Life) rating of 15 years, indicating long-term supply commitment for automotive design programs. This makes it suitable for use in automotive infotainment, ADAS, body control, and powertrain applications.
What input voltage range does the TPS78401QWDRBRQ1 support?
The TPS78401QWDRBRQ1 accepts input voltages from 1.65V minimum to 6V maximum, making it compatible with a wide range of power sources including Li-ion battery outputs, 3.3V and 5V system rails, and automotive battery management circuits. The wide input range enables flexible power architecture design in both automotive and industrial applications.
What package does the TPS78401QWDRBRQ1 use?
The TPS78401QWDRBRQ1 is housed in an 8-pin WSON (Small Outline No-lead) package, JESD-30 code S-PDSO-N8. This compact leadless package provides excellent thermal performance and a small PCB footprint, making it ideal for space-constrained automotive ECUs and compact power management modules where heat dissipation and board area are critical constraints.
Is the TPS78401QWDRBRQ1 output voltage adjustable?
Yes, the TPS78401QWDRBRQ1 has an adjustable output voltage configuration, allowing designers to set the output voltage using an external resistor divider. This flexibility enables a single LDO part to power multiple voltage rails across different designs, reducing inventory complexity and allowing customization for specific system requirements in automotive and industrial power management applications.
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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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