TPS74801QDPNRQ1 Texas Instruments In Stock
TPS74801QDPNRQ1 is an automotive-grade adjustable low-dropout linear regulator by Texas Instruments with up to 1.5 A output current and 250 mV typical dropout voltage. Key specs: AEC-Q100 qualified, 1.0 V to 3.6 V adjustable output, enable and power-good outputs in a 10-pin DFN package. In stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.8125(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 Grade 1 automotive qualification supporting junction temperatures from -40°C to +125°C for reliable in-vehicle power management
- 1.5 A continuous output current with 250 mV typical dropout voltage enabling efficient regulation in automotive ECU and ADAS processor power rails
- Integrated enable input and power-good output in a compact 10-pin DFN (3 mm × 3 mm) package for sequenced multi-rail power-up in automotive SoC systems
Applications
The TPS74801QDPNRQ1 is designed for automotive ECU, ADAS camera, and infotainment system power supplies requiring AEC-Q100-compliant LDO regulation with up to 1.5 A load capability. Its adjustable output from 1.0 V to 3.6 V covers DDR memory, processor core, and I/O rail requirements in a single compact DFN package. The power-good output simplifies power-sequencing logic in multi-rail automotive SoC supply designs operating across the full -40°C to +125°C automotive temperature range.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output current and dropout voltage does TPS74801QDPNRQ1 provide for automotive processor core supplies?
TPS74801QDPNRQ1 delivers up to 1.5 A continuous output current with a typical dropout voltage of 250 mV at full load. For a 1.2 V processor core rail, the input needs only 1.45 V minimum, enabling low-dropout operation from a 1.8 V secondary bus. This makes it suitable for supplying LPDDR4 termination rails or application processor cores in automotive infotainment and instrument cluster systems requiring tight voltage regulation within ±2%.
How does AEC-Q100 Grade 1 qualification of TPS74801QDPNRQ1 affect its reliability in under-hood automotive environments?
AEC-Q100 Grade 1 qualification requires testing to junction temperatures of -40°C to +125°C with accelerated stress tests including HTOL at 125°C for 1,000 hours, THB at 85°C/85% RH, and ESD immunity to HBM Class 2 (2,000 V). These tests verify that TPS74801QDPNRQ1 maintains its 250 mV dropout and regulation accuracy over a 15-year automotive service life, unlike commercial-grade regulators which are only screened to 85°C and may drift outside spec in high-temperature engine-compartment locations.
How can TPS74801QDPNRQ1's power-good output be used to implement power-sequencing in a multi-rail automotive SoC design?
The open-drain power-good output asserts high when the output voltage reaches 92% of its set point, typically within 1 ms of enable assertion. By chaining the power-good of TPS74801QDPNRQ1 to the enable pin of the next LDO in a sequence, designers implement a guaranteed power-on order with no external microcontroller or timing circuit. This is critical for automotive SoCs requiring VDDCORE to stabilize before VDDIO is applied, preventing latch-up during the 12 V cold-crank transient from -40°C startup.
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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 |
|---|---|---|
| 1+ | $1.6250 | $1.63 |
| 155+ | $0.8775 | $136.01 |
| 343+ | $0.8125 | $278.69 |
In Stock · 24h Response · Worldwide Shipping
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