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Infineon Technologies TLE4276GVATMA3
- Part No.:
- TLE4276GVATMA3
- Manufacturer:
- Infineon Technologies
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
TLE4276GVATMA3.pdf
- Description:
- IC REG LIN POS ADJ 400MA TO263-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,403
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Product details
Overview
TLE4276GVATMA3 from Infineon is a 5 V fixed-output, automotive-qualified linear voltage regulator in PG-TO263-5 package, delivering up to 400 mA with ±4% output tolerance, 250–500 mV dropout at 250 mA, and inhibit-controlled shutdown (<10 µA quiescent current). It operates from 6–40 V input and integrates short-circuit, reverse-polarity, and overtemperature protection for engine control units and body electronics.
For engineers reviewing the TLE4276GVATMA3 datasheet, TLE4276GVATMA3 pinout, TLE4276GVATMA3 application, or TLE4276GVATMA3 equivalent, key selection criteria include its AEC-Q100 qualification, low-drop performance under high ambient temperature, inhibit logic compatibility with 3.3 V/5 V microcontrollers, and ceramic output capacitor stability (≥22 µF, ESR ≤3 Ω).
Technical Context
The TLE4276GVATMA3 uses a bandgap-referenced control amplifier driving a series pass transistor with saturation control to prevent oversaturation under load. Its internal protection circuits independently monitor overload, junction temperature (>150 °C), and reverse polarity conditions, forcing safe shutdown without external components.
It supports fixed 5 V output only (V50 variant), with input voltage range of 6–40 V and guaranteed regulation down to VI = VQ + 0.5 V. The inhibit input (INH) is low-active and compatible with standard CMOS/TTL logic levels, enabling system-level power sequencing in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±4% - stable rail for MCU core/logic supply in automotive modules |
| Max Output Current | 400 mA - sufficient for powering multiple sensors and interface ICs simultaneously |
| Dropout Voltage | 250–500 mV at 250 mA - enables operation with marginal battery voltage (e.g., cold-crank 6 V) |
| Quiescent Current | <10 µA in inhibit mode - meets ultra-low standby power requirements for always-on domains |
| Input Voltage Range | 6–40 V - covers full automotive battery range including load dump transients |
| Junction Temp Range | −40 to +150 °C - validated for under-hood placement per AEC-Q100 Grade 0 |
| Thermal Resistance | Rthj-c = 4 K/W - requires PCB copper pour for heatsinking; no external heatsink needed at ≤400 mA |
Pinout & Package
PG-TO263-5 package with integrated heatsink tab (pin 1: Input, pin 2: Inhibit, pin 3: GND, pin 4: NC/VA, pin 5: Output; heatsink tab electrically connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Primary DC input connection; must be decoupled directly at IC with ≥1 µF ceramic capacitor |
| 2 (INH) | Inhibit | Low-active enable/disable control; pulls device into sub-10 µA sleep state when grounded |
| 3 (GND) | Ground | Power and signal reference; connects to heatsink tab for thermal conduction |
| 4 (N.C./VA) | No Connect / Adjust | Not connected in V50 version; unused pin - must remain floating or tied to GND per layout guidelines |
| 5 (Q) | Output | Regulated 5 V output; requires ≥22 µF low-ESR ceramic capacitor to ground for loop stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 0 (−40 to +150 °C) qualification confirmed - suitable for engine control, transmission, and ADAS modules |
| Reverse polarity protection | Withstands −42 V input - eliminates need for external series diode in battery-connected applications |
| Short-circuit proof | Internally limits output current to 400–1100 mA depending on thermal condition - prevents latch-up during wiring faults |
| Overtemperature shutdown | Turns off output above 150 °C junction temperature and auto-recovers after cooldown - avoids permanent damage in sealed enclosures |
| Low EMI design | PSRR = 54 dB at 100 Hz - suppresses alternator ripple and reduces need for additional filtering stages |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powering 32-bit MCU, CAN transceivers, and analog sensor interfaces in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary 5 V supply regulator with inhibit-controlled sleep mode synchronized to vehicle ignition state. Use Value: Maintains regulation during cold-crank (6 V input) and load dump (40 V transient), while drawing <10 µA in key-off state to preserve battery life. | Use Scenario: Supplying door module microcontrollers, LED drivers, and LIN transceivers in centralized body electronics. IC Role / Device Role / Timing Role: Local 5 V regulator with reverse-polarity immunity for direct battery connection behind fuse box. Use Value: Eliminates external protection diode and reduces BOM count; withstands −42 V reverse battery connection during service. |
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
Use Scenario: Providing clean 5 V rail to radar SoCs and image signal processors in front-camera or surround-view systems. IC Role / Device Role / Timing Role: Secondary regulated supply isolated from noisy 12 V domain via low-noise LDO architecture. Use Value: PSRR of 54 dB at 100 Hz attenuates alternator noise, preventing corruption of high-speed ADC sampling in vision processing. | Use Scenario: Powering motor control ASICs and position sensor interfaces in steer-by-wire and column-assist EPS units. IC Role / Device Role / Timing Role: High-reliability 5 V regulator with thermal foldback during sustained torque demand. Use Value: Auto-shutdown at 150 °C protects against thermal runaway during extended parking assist maneuvers; recovers autonomously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA max output, 250 mV dropout, SOT-23-5 package, not AEC-Q100 qualified | Limited to cabin/non-safety domains; unsuitable for under-hood or safety-critical use | Select only for cost-sensitive, non-automotive industrial designs requiring small footprint |
| TPS7B6950QDCYRQ1 | 150 mA max output, 240 mV dropout, 1.7–40 V input, AEC-Q100 Grade 1 (−40 to +125 °C) | Lower current capacity and narrower temp range - insufficient for high-power ECU loads | Preferable only where thermal margin is ample and peak load ≤150 mA |
Compared with TLV73350PDBVR and TPS7B6950QDCYRQ1, the TLE4276GVATMA3 uniquely delivers 400 mA at 150 °C junction temperature with full AEC-Q100 Grade 0 validation - making it the only option among the three qualified for engine compartment deployment with sustained high-current loads.
Availability
TLE4276GVATMA3 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering systems requiring stable component supply across long production lifecycles and automotive-grade reliability.
Supply support for TLE4276GVATMA3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global manufacturing and automotive qualification infrastructure.
The OPTIREG™ linear regulator product line targets automotive power supply design, emphasizing robustness under harsh electrical and thermal conditions - specifically engineered for ECU, BCM, and ADAS subsystems demanding AEC-Q100 compliance and high ambient temperature operation.
FAQ
What is the maximum allowable input voltage for continuous operation?
The TLE4276GVATMA3 supports continuous operation up to 40 V input, verified per absolute maximum ratings. It also withstands transient load dump events up to +45 V for short durations, but sustained operation above 40 V risks permanent damage and violates AEC-Q100 stress test limits.
Can the INH pin be left unconnected, or does it require a pull-up?
The INH pin must not be left floating. It is low-active and internally pulled up; however, for reliable inhibit functionality, a 10 kΩ pull-up to VI is recommended. Leaving it open may cause erratic enable/disable behavior due to noise coupling in automotive environments.
Is an external capacitor required on the output, and what are the critical parameters?
Yes - a minimum 22 µF ceramic capacitor with ESR ≤3 Ω at 10 kHz is mandatory for loop stability. Lower ESR improves transient response; tantalum or aluminum electrolytics are not recommended due to higher ESR and aging effects that risk oscillation.
Does the TLE4276GVATMA3 support adjustable output voltage?
No - the 'GV' suffix denotes the fixed 5.0 V output version (V50). Adjustable variants use 'G' or 'D' suffixes (e.g., TLE4276GV) and expose the VA pin. The GVATMA3 has pin 4 (VA) marked N.C. and must remain unconnected or grounded per layout rules.
TLE4276GVATMA3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- 20V
- Voltage Dropout (Max):
- 0.5V @ 250mA
- Current - Output:
- 400mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 25 mA
- PSRR:
- 54dB (100Hz)
- Control Features:
- Inhibit
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO263-5-1
TLE4276GVATMA3 FAQ
1.How can I place an order for TLE4276GVATMA3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4276GVATMA3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TLE4276GVATMA3 reliable?
The price and inventory of TLE4276GVATMA3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4276GVATMA3 is usually 5 days.
3.What payment methods are accepted for TLE4276GVATMA3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4276GVATMA3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4276GVATMA3?
TLE4276GVATMA3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4276GVATMA3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TLE4276GVATMA3?
For technical support, including TLE4276GVATMA3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4276GVATMA3 requirements.
6.How does Aetrix verify that TLE4276GVATMA3 is sourced from the original manufacturer or authorized distributors?
All TLE4276GVATMA3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TLE4276GVATMA3 meets industry standards.
7.What is the process for return or replacement of TLE4276GVATMA3?
All TLE4276GVATMA3 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4276GVATMA3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TLE4276GVATMA3 part is unused and in its original packaging.
Return procedure for TLE4276GVATMA3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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