TPS78512QKVURQ1 Texas Instruments Integrated Circuit (Other) In Stock
TPS78512QKVURQ1 is an automotive-grade 1 A fixed 1.2 V LDO linear regulator with high accuracy from Texas Instruments. It features a low dropout voltage of 315 mV typical at full load and operates from 1.7 V to 6 V input. Available with AEC-Q100 qualification for demanding automotive applications.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS78512QKVURQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8547(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 qualified automotive LDO regulator rated for -40°C to 125°C operation
- Ultra-low 315 mV typical dropout voltage at 1 A output current
- High accuracy 1.2 V fixed output with tight regulation across line and load
- Enable pin for power sequencing and soft-start in multi-rail automotive systems
Applications
TPS78512QKVURQ1 is suited for automotive infotainment, ADAS, and body-control modules that require a stable 1.2 V rail from a 3.3 V or 5 V system bus. Its low dropout performance allows operation close to the output voltage, reducing power dissipation in thermally constrained vehicle electronics. It is also used in industrial instrumentation and communications equipment where AEC-Q100 grade reliability is an advantage.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.755V |
| Dropout Voltage1-Nom | 0.315V |
| Input Voltage Absolute-Max | 6.5V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 1.7V |
| JESD-30 Code | R-PSSO-G4 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.00625% |
| Load Regulation-Max | 0.015% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 1.2204V |
| Output Voltage1-Min | 1.1796V |
| Output Voltage1-Nom | 1.2V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP4/5H,.37,50TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.14mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.7% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| 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 minimum input voltage required to keep TPS78512QKVURQ1 in regulation at 1 A?
The TPS78512QKVURQ1 requires a minimum input voltage of approximately 1.515 V at full 1 A load, since its typical dropout voltage is 315 mV at that current. The absolute minimum supply rail is 1.7 V per the datasheet, providing sufficient headroom for worst-case 755 mV maximum dropout across temperature.
For an automotive ADAS ECU running from a 3.3 V rail, how much power does TPS78512QKVURQ1 dissipate at full load?
At 3.3 V input and 1.2 V output with 1 A load, the TPS78512QKVURQ1 dissipates roughly 2.1 W (VIN minus VOUT times IOUT = 2.1 V × 1 A). The WSON-4 package requires adequate PCB copper area or a thermal pad connection to keep junction temperature within the 150°C limit across -40°C to 125°C ambient range.
How does TPS78512QKVURQ1 compare to a non-automotive LDO like TPS785 in terms of qualification and temperature range?
TPS78512QKVURQ1 is AEC-Q100 Grade 1 qualified for automotive use, covering -40°C to 125°C, while standard commercial LDOs typically cover only 0°C to 85°C or 125°C without formal automotive qualification testing. This makes TPS78512QKVURQ1 the compliant choice for designs that must pass automotive functional safety audits or OEM supplier requirements.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.9838 | $245.95 |
| 500+ | $0.9467 | $473.33 |
| 1000+ | $0.9425 | $942.48 |
| 2500+ | $0.8838 | $2209.60 |
| 5000+ | $0.8644 | $4322.00 |
| 7500+ | $0.8547 | $6409.95 |
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