TPS54612QPWRDN Texas Instruments In Stock
TPS54612QPWRDN is a 6 A automotive-grade synchronous step-down (buck) DC-DC converter by Texas Instruments, AEC-Q100 qualified. Key specs: 4.5 V to 17 V input range, 6 A continuous output current, integrated high-side and low-side MOSFETs. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- AEC-Q100 Grade 1 qualification ensures reliable operation across the full automotive temperature range of -40°C to 125°C in under-hood and in-cabin electronic systems
- 6 A continuous output current with integrated 4.5 V to 17 V input range covers 12 V automotive battery rails including cold-crank and load-dump transient conditions
- Fully integrated high-side and low-side MOSFETs in a compact VQFN power package reduce external component count and simplify PCB layout for ADAS and body-control modules
Applications
The TPS54612QPWRDN is designed for automotive body-control modules, ADAS processors, and infotainment systems that require an AEC-Q100 qualified 6 A point-of-load regulator from a 12 V vehicle battery bus. Its wide input range accommodates cold-crank voltages as low as 4.5 V and load-dump surges up to 17 V, ensuring uninterrupted operation throughout automotive transient conditions. Industrial control systems also use it where an automotive-grade buck converter provides enhanced reliability over commercial-grade alternatives in harsh operating environments from -40°C to 125°C.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS54612QPWRDN:
Switching Regulator, Voltage-mode, 6A, 700kHz Switching Freq-Max, PDSO28
Switching Regulator, Voltage-mode, 6A, 700kHz Switching Freq-Max, BICMOS, PDSO28
Switching Regulator, Voltage-mode, 6A, 700kHz Switching Freq-Max, BICMOS, PDSO28
Switching Regulator, Voltage-mode, 6A, 700kHz Switching Freq-Max, PDSO28
Frequently Asked Questions
What automotive qualification does the TPS54612QPWRDN carry, and what temperature range does it cover?
The TPS54612QPWRDN is AEC-Q100 Grade 1 qualified, guaranteeing reliable operation from -40°C to 125°C junction temperature. This qualification confirms the device has passed automotive semiconductor stress tests for early-life failures, humidity resistance, and high-temperature operating life, making it suitable for under-hood and instrument-cluster electronic control units.
How does the TPS54612QPWRDN handle 12 V automotive battery transients such as cold-crank and load-dump events?
The TPS54612QPWRDN accepts input voltages from 4.5 V to 17 V. During a cold-crank event, the battery may dip to 5 V or below, yet the regulator maintains output regulation as long as the input stays above 4.5 V. Load-dump transients that push the battery bus to 16 V to 17 V are also within the device's absolute maximum input rating, protecting downstream loads without requiring an external clamping device.
What output current does the TPS54612QPWRDN support, and what types of loads can it power in an ADAS system?
The TPS54612QPWRDN provides 6 A continuous output current. In an ADAS system, this is sufficient to power application processors requiring 1.0 V or 1.8 V core rails drawing 4 A to 6 A, multiple DDR memory banks at 1.2 V drawing 1 A to 2 A, or Ethernet PHY devices at 1.8 V and 3.3 V simultaneously from a single regulated output.
How does the TPS54612QPWRDN's integrated MOSFET design reduce BOM complexity compared to a controller-plus-FET solution for a 12 V automotive regulator?
By integrating both the high-side and low-side power MOSFETs rated for 6 A, the TPS54612QPWRDN eliminates at least 2 external power transistors, a dedicated gate driver IC, and associated bootstrap capacitors and gate resistors. This removes approximately 8 to 12 components from the BOM and reduces PCB routing for the high-frequency switching node, lowering EMI and improving reliability in automotive body-control module designs.
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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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