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Infineon Technologies TLE4276GV50ATMA2
- Part No.:
- TLE4276GV50ATMA2
- Manufacturer:
- Infineon Technologies
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
TLE4276GV50ATMA2.pdf
- Description:
- IC REG LIN 5V 400MA TO263-5-1
- Quantity:
- Payment:
- Shipping:
Inventory:3,104
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Product details
Overview
TLE4276GV50ATMA2 from Infineon is a fixed-output 5.0 V low-dropout linear voltage regulator in PG-TO263-5 package, delivering up to 400 mA output current with ±4% output voltage tolerance, 250–500 mV dropout at 250 mA, and AEC-Q100 qualification for automotive power supply rails feeding microcontrollers and sensors.
For engineers reviewing the TLE4276GV50ATMA2 datasheet, TLE4276GV50ATMA2 pinout, TLE4276GV50ATMA2 application, or TLE4276GV50ATMA2 equivalent, key selection criteria include inhibit-controlled shutdown (≤10 µA quiescent), reverse-polarity protection, short-circuit robustness, thermal shutdown at 150 °C junction, and stability with ≥22 µF/ESR ≤3 Ω output capacitor.
Technical Context
The TLE4276GV50ATMA2 integrates a bandgap reference, control amplifier, and saturation-controlled NPN series pass transistor. It operates across 6–40 V input range and maintains regulation down to VI = VQ + 0.5 V, enabling use in 12 V and 24 V automotive systems with battery transients.
Its inhibit input (INH) is low-active and supports system-level power sequencing; the VA pin is internally disconnected in the V50 variant, confirming fixed 5.0 V output configuration. Protection circuits cover overload, overtemperature (150 °C trip), reverse polarity, and ESD (2 kV HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±4% (4.8–5.2 V), stable across 5–400 mA load and 6–40 V input. |
| Max Output Current | 400 mA continuous; internal current limiting activates at ~600 mA typ., preventing damage during overload. |
| Dropout Voltage | 250–500 mV at 250 mA; enables regulation with minimal headroom-e.g., 5.5 V input sustains 5 V output under full load. |
| Quiescent Current | ≤10 µA in inhibit-off state (INH = 0 V); critical for always-on automotive modules requiring ultra-low standby drain. |
| Thermal Shutdown | Activates at 150 °C junction temperature; hysteresis ensures safe restart after cooldown. |
| PSRR | 54 dB at 100 Hz; suppresses ripple from alternator or switching pre-regulators feeding sensitive analog circuitry. |
| ESD Rating | 2000 V HBM; meets automotive board-level ESD immunity requirements without external protection diodes. |
Pinout & Package
PG-TO263-5 (D²PAK) package with exposed thermal pad connected to GND; requires PCB copper area ≥80 × 80 mm (35 µm Cu) for Rthj-a = 80 K/W operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Primary DC input connection; must be decoupled directly to GND with ceramic capacitor to suppress line noise and ensure stability. |
| 2 (INH) | Inhibit | Low-active enable/disable control; pulls device into <10 µA sleep mode when grounded; open or high disables regulation. |
| 3 (GND) | Ground | Power and signal reference; also serves as thermal path via exposed pad; must be low-impedance PCB plane connection. |
| 4 (N.C.) | No Connect | Internally unconnected; no external wiring; floating or grounded-no effect on function. |
| 5 (Q) | Output | Regulated 5.0 V supply; requires ≥22 µF output capacitor with ESR ≤3 Ω at 10 kHz for loop stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Validated for automotive grade 1 (-40 to +125 °C ambient) and extended junction range (-40 to +150 °C), enabling use in engine bay and ADAS ECUs. |
| Reverse Polarity Protection | Withstands -42 V input without damage-eliminates need for external series diode in battery-reversed fault conditions. |
| Short-Circuit Proof | Internally limits output current and cycles into thermal foldback during sustained short, preventing latch-up or destruction. |
| Low Dropout Architecture | Uses NPN pass transistor with saturation control, achieving sub-500 mV dropout while maintaining accuracy and PSRR. |
| Integrated Thermal Shutdown | Monitors die temperature continuously; shuts down output at 150 °C with hysteresis to prevent thermal runaway during overload or poor heatsinking. |
Applications
| Body Control Module (BCM) | Advanced Driver Assistance System (ADAS) Camera ECU |
|---|---|
Use Scenario: Powering MCU, CAN transceiver, and sensor interface ICs in vehicle door modules and lighting controllers. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying logic and communication peripherals with precise voltage and low noise. Use Value: ±4% output tolerance ensures reliable digital operation; inhibit input enables synchronized sleep/wake with vehicle ignition state. | Use Scenario: Regulating power for image sensor, ISP, and Ethernet PHY in front-facing camera modules. IC Role / Device Role / Timing Role: Clean, stable 5 V rail isolated from noisy 12 V battery; PSRR >54 dB suppresses alternator ripple. Use Value: 22 µF/ESR ≤3 Ω output cap requirement matches standard automotive-grade tantalum or polymer capacitors. |
| Engine Control Unit (ECU) Sub-Rail | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Generating auxiliary 5 V supply for knock sensor amplifiers and crankshaft position decoder ICs. IC Role / Device Role / Timing Role: Secondary regulated rail derived from main 5 V or 12 V domain; handles transient-heavy environments. Use Value: Withstands -42 V reverse polarity and 45 V load dump spikes per ISO 7637-2, reducing external protection components. | Use Scenario: Powering Hall-effect torque and angle sensors in EPS motor control assemblies. IC Role / Device Role / Timing Role: Low-noise, thermally robust 5 V source for precision analog front-ends requiring stable reference. Use Value: 0.5 mV/K temperature drift minimizes offset error in ratiometric sensor measurements across -40 to +125 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA max output, 250 mV dropout at 300 mA, SOT-23-5 package, no inhibit input. | Lacks INH control and AEC-Q100 qualification; suitable only for non-safety-critical cabin electronics. | Select when board space is constrained and inhibit functionality is unnecessary. |
| NCP1117ST50T3G | 800 mA output, 1.2 V dropout at 800 mA, TO-220/TO-252 packages, no reverse polarity or AEC-Q100 rating. | Higher dropout and no automotive qualification limit use to industrial or consumer applications. | Choose only if higher current and lower cost outweigh automotive compliance needs. |
Compared with TLV73350PDBVR and NCP1117ST50T3G, the TLE4276GV50ATMA2 uniquely combines AEC-Q100 qualification, reverse-polarity survival, inhibit control, and automotive-grade thermal performance in a single D²PAK package-making it irreplaceable for safety-critical power domains.
Availability
TLE4276GV50ATMA2 is available at Aetrix Electronics and suitable for Body Control Modules, ADAS camera ECUs, Engine Control Units, and Electric Power Steering systems requiring stable component supply across long production lifecycles.
Supply support for TLE4276GV50ATMA2 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 industrial control solutions, with global manufacturing and automotive qualification infrastructure.
The TLE4276 series belongs to Infineon's automotive linear regulator product line, designed specifically for robust, low-noise, and fail-safe power supply in engine, chassis, and driver assistance systems.
FAQ
What is the minimum input voltage required for regulation?
The TLE4276GV50ATMA2 requires VI ≥ VQ + 0.5 V = 5.5 V to maintain regulation at full load. At light loads (<5 mA), regulation holds down to 4.5 V input per datasheet operating range. Below this, output drops linearly with input.
Can the INH pin be left floating?
No-INH is low-active and internally pulled up. Leaving it floating risks unintended disable due to noise coupling. It must be actively driven high (≥2.0 V) to enable or grounded to disable; a 10 kΩ pull-up to VIN is recommended if not actively controlled.
Is an external heat sink required for 400 mA operation?
Not necessarily-the PG-TO263-5 package achieves Rthj-a = 80 K/W with proper PCB copper area (80 × 80 mm, 35 µm Cu). At 400 mA and 13.5 V input, power dissipation is ~3.4 W; junction temperature rise is ~272 °C above ambient-so forced airflow or additional copper is mandatory for sustained operation.
Does the TLE4276GV50ATMA2 support adjustable output voltage?
No-the 'V50' suffix denotes fixed 5.0 V output. The VA pin is internally disconnected in this variant. Adjustable versions (e.g., TLE4276GV) use VA to set output via external resistor divider; they are pin-compatible but functionally distinct.
TLE4276GV50ATMA2 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:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- 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
TLE4276GV50ATMA2 FAQ
1.How can I place an order for TLE4276GV50ATMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4276GV50ATMA2 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 TLE4276GV50ATMA2 reliable?
The price and inventory of TLE4276GV50ATMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4276GV50ATMA2 is usually 5 days.
3.What payment methods are accepted for TLE4276GV50ATMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4276GV50ATMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4276GV50ATMA2?
TLE4276GV50ATMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4276GV50ATMA2 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 TLE4276GV50ATMA2?
For technical support, including TLE4276GV50ATMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4276GV50ATMA2 requirements.
6.How does Aetrix verify that TLE4276GV50ATMA2 is sourced from the original manufacturer or authorized distributors?
All TLE4276GV50ATMA2 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 TLE4276GV50ATMA2 meets industry standards.
7.What is the process for return or replacement of TLE4276GV50ATMA2?
All TLE4276GV50ATMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4276GV50ATMA2, 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 TLE4276GV50ATMA2 part is unused and in its original packaging.
Return procedure for TLE4276GV50ATMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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