TPS78430QWDRBRQ1 Texas Instruments Undefined or Miscellaneous (Small Outline No-lead) In Stock
The TPS78430QWDRBRQ1 is an automotive-grade 300mA fixed-output LDO voltage regulator with ultra-low 0.115V dropout voltage and high PSRR in an 8-pin SON package. It operates from 3.5V to 6V input and meets AEC-Q100 automotive qualification for vehicle electronics. Available from Texas Instruments with worldwide distribution.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS78430QWDRBRQ1 Datasheet PDF
- Category
- Undefined or Miscellaneous
- Price
- From $0.4083(MOQ 250)
- 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-qualified 300mA LDO with ultra-low 0.115V dropout for reliable vehicle subsystem power
- High power supply rejection ratio (PSRR) minimizes noise coupling from noisy automotive battery and alternator rails
- Low quiescent current (IQ) operation in 8-pin SON package for thermally efficient, space-saving automotive ECU designs
Applications
The TPS78430QWDRBRQ1 is designed for automotive electronic control units (ECUs), ADAS sensors, and infotainment systems requiring a clean, stable 3V output from a 3.5V to 6V vehicle power rail. Its AEC-Q100 qualification, high PSRR, and 0.115V maximum dropout voltage make it well suited for always-on automotive subsystems where supply noise rejection and minimal voltage headroom are critical.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2020-07-03 |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.115V |
| Dropout Voltage1-Nom | 0.115V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 3.5V |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.0003% |
| Load Regulation-Max | 0.01% |
| 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 | 3.051V |
| Output Voltage1-Min | 2.949V |
| Output Voltage1-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.12,25 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | CMOS |
| 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 | 1.7% |
| Package | Small Outline No-lead |
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 TPS78430QWDRBRQ1 and why does it matter for automotive battery operation?
The TPS78430QWDRBRQ1 has a maximum dropout voltage of 0.115V, meaning it can maintain a regulated 3V output even when the input supply drops to 3.115V. This low dropout is crucial in automotive systems during cold-crank events where the battery voltage can fall well below nominal 12V levels.
Is the TPS78430QWDRBRQ1 suitable for ADAS camera and radar sensor power rails in automotive designs?
Yes. The TPS78430QWDRBRQ1 is AEC-Q100 automotive-qualified and features high PSRR to reject alternator and switching noise present on vehicle 12V rails, making it suitable for powering noise-sensitive ADAS camera, radar, and LiDAR sensor analog front-ends requiring a stable 3V supply at up to 300mA.
What input voltage range does the TPS78430QWDRBRQ1 support and what happens near the maximum 6V limit?
The TPS78430QWDRBRQ1 operates over a 3.5V to 6V input range with an absolute maximum of 6.5V. In automotive post-regulated designs supplied from a 5V rail, this range comfortably handles transient overvoltages while protecting downstream 3V circuits up to the device's 6.5V absolute maximum rating.
How does the enable pin on the TPS78430QWDRBRQ1 benefit automotive power sequencing designs?
The enable pin allows the ECU or power management controller to sequence the 3V output rail independently, enabling the TPS78430QWDRBRQ1 to be powered up only when the downstream subsystem is needed. This reduces total standby quiescent current in always-on automotive modules operating from a 3.5V to 6V supply.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.4494 | $112.36 |
| 500+ | $0.4302 | $215.08 |
| 1000+ | $0.4146 | $414.63 |
| 15000+ | $0.4116 | $6174.30 |
| 21000+ | $0.4083 | $8573.67 |
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