TPS78425BQWDRBRQ1 Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
Texas Instruments TPS78425BQWDRBRQ1 is an AEC-Q100 qualified 300 mA low-dropout voltage regulator with high PSRR and enable pin for automotive applications. Dropout voltage is only 115 mV at full load, input range 3 V to 6 V, in SON-8 package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- TPS78425BQWDRBRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3964(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 Grade 1 automotive qualification covering -40°C to 125°C enables use in safety-critical ADAS, infotainment, and powertrain ECU designs
- Ultra-low 115 mV dropout voltage at 300 mA output allows reliable 2.5 V regulation from a 2.615 V minimum input, maximizing usable battery energy
- High PSRR exceeding 60 dB at 1 kHz rejects switching noise from adjacent DC-DC converters, protecting sensitive RF and analog circuits
Applications
The TPS78425BQWDRBRQ1 is designed for automotive ECU supply rails powering microcontrollers, sensors, and communication transceivers in ADAS, body control modules, and infotainment systems. Its high PSRR makes it ideal for post-regulating a switching converter output to deliver a clean supply to noise-sensitive analog and RF circuits in vehicle environments. The enable pin supports controlled power sequencing and sleep-mode current reduction in battery-managed automotive subsystems.
Specifications
| Pbfree Code | Yes |
| 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 | 3V |
| 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 | 2.5425V |
| Output Voltage1-Min | 2.4575V |
| Output Voltage1-Nom | 2.5V |
| 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 |
| 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 TPS78425BQWDRBRQ1 at its rated 300 mA output current, and what minimum input supply is needed?
The TPS78425BQWDRBRQ1 has a maximum dropout voltage of 115 mV at 300 mA output. For a 2.5 V fixed output, the input supply must be at least approximately 2.615 V to maintain regulation. This ultra-low dropout enables the regulator to operate from a nearly depleted 3.3 V rail or a tightly-controlled 2.7 V bus while still delivering a clean 2.5 V output to downstream circuits.
How does the TPS78425BQWDRBRQ1 qualify for automotive designs, and what temperature grade does it meet?
The TPS78425BQWDRBRQ1 is AEC-Q100 Grade 1 qualified, meaning it is tested and specified for operation from -40°C to 125°C junction temperature under automotive stress conditions. This qualification covers accelerated life testing, ESD robustness, and latch-up immunity required by Tier 1 automotive suppliers. It meets PPAP documentation standards, making it suitable for high-volume automotive production lines.
What PSRR does the TPS78425BQWDRBRQ1 provide, and which circuit types benefit most from this specification?
The TPS78425BQWDRBRQ1 delivers high power-supply rejection ratio (PSRR) of over 60 dB at 1 kHz, effectively attenuating switching ripple from adjacent DC-DC converters by a factor greater than 1000. RF transceiver supply rails, precision ADC reference circuits, and CAN/LIN transceiver supplies in automotive ECUs benefit most, as even millivolt ripple on these rails can introduce SNR degradation or communication errors in high-interference vehicle environments.
What is the input voltage range of the TPS78425BQWDRBRQ1, and what package does it use for compact ECU board designs?
The TPS78425BQWDRBRQ1 accepts input voltages from 3 V to 6 V, with an absolute maximum rating of 6.5 V. It is housed in an 8-pin SON (small outline no-lead) package with a 2 mm x 2 mm footprint and 0.5 mm pin pitch, enabling a minimal PCB footprint in space-constrained automotive ECU boards. The exposed bottom pad provides low thermal resistance to the PCB, supporting power dissipation at up to 300 mA continuous load.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.4919 | $122.98 |
| 500+ | $0.4711 | $235.57 |
| 1000+ | $0.4540 | $454.03 |
| 9000+ | $0.4052 | $3646.80 |
| 15000+ | $0.3996 | $5994.45 |
| 21000+ | $0.3964 | $8323.77 |
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