TLE4278G Infineon Integrated Circuit (Small Outline Packages) In Stock
Infineon TLE4278G is an automotive-grade fixed LDO voltage regulator supporting 5.5 V to 45 V input range with a maximum 0.5 V dropout and exceptional 0.02% line regulation. Available in a 14-pin small outline package with worldwide shipping.
- Manufacturer
- Infineon
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- TLE4278G Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.1621(MOQ 93)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide 5.5 V to 45 V input voltage range covering 12 V and 24 V automotive bus environments
- Ultra-low dropout voltage of 0.25 V nominal (0.5 V maximum) for efficient regulation near rail
- Best-in-class 0.02% maximum line regulation for highly stable output across supply variations
- Automotive-qualified design supporting demanding under-hood and body electronics
- 14-pin small outline package (R-PDSO-G14) balancing pin count with compact board footprint
Applications
The TLE4278G is designed for automotive body control modules, infotainment systems, and instrument clusters that require a tightly regulated supply from the vehicle 12 V or 24 V battery, including load-dump conditions up to 45 V. Its 0.02% line regulation ensures stable powering of microcontrollers and analog sensors even during large battery voltage swings. It is also suited for industrial power supplies and motor drive auxiliary rails where wide input range and low dropout are critical.
Specifications
| Pbfree Code | Yes |
| YTEOL | 6.2 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.5V |
| Dropout Voltage1-Nom | 0.25V |
| Input Voltage Absolute-Max | 45V |
| Input Voltage-Max | 45V |
| Input Voltage-Min | 5.5V |
| JESD-30 Code | R-PDSO-G14 |
| Line Regulation-Max | 0.02% |
| Load Regulation-Max | 0.005% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 150°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 5.2V |
| Output Voltage1-Min | 4.8V |
| Output Voltage1-Nom | 5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Terminal Finish | Nickel/Gold/Palladium (Ni/Au/Pd) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Voltage Tolerance-Max | 4% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2A |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TLE4278G:
suggested
suggested
suggested
suggested
Frequently Asked Questions
How does the TLE4278G handle automotive load-dump events with input voltages above 12 V?
The TLE4278G is rated for an absolute maximum input voltage of 45 V, which covers standard automotive load-dump transients that can reach 40 V on a 12 V vehicle bus. Its fixed LDO architecture maintains a regulated output as long as the input stays within 5.5 V to 45 V, making it robust against the voltage spikes common in automotive start/stop systems without requiring external clamp circuits.
What line regulation performance does TLE4278G deliver, and why does it matter for sensor supply rails?
The TLE4278G achieves a maximum line regulation of 0.02%, meaning its output voltage shifts by no more than 0.02% for a full-range input voltage swing from 5.5 V to 45 V. For precision sensors with supply sensitivity of 0.1% per volt, this 0.02% line regulation virtually eliminates supply-induced measurement error, which is critical in automotive MEMS pressure sensors and Hall-effect current sensors.
What is the minimum headroom voltage required to keep TLE4278G in regulation?
The TLE4278G has a nominal dropout voltage of 0.25 V and a maximum of 0.5 V. This means the input supply must exceed the regulated output by at least 0.5 V to guarantee regulation across all conditions. In a 5 V output application, input voltage can drop as low as 5.5 V before the regulator exits regulation, which is exactly the specified minimum input voltage.
Which package does TLE4278G use and how many pins does it have?
The TLE4278G is housed in a 14-pin small outline package coded R-PDSO-G14. This package provides enough pins for enable, status, and adjust functions while keeping the PCB footprint compact. The SO-14 outline is widely supported by standard PCB footprint libraries, simplifying layout for automotive and industrial designs.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 93+ | $2.4947 | $232.01 |
| 120+ | $2.4116 | $289.39 |
| 161+ | $2.1621 | $348.10 |
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