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Infineon Technologies TLE4276SV50AKSA1
- Part No.:
- TLE4276SV50AKSA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-220-5
- Datasheet:
-
TLE4276SV50AKSA1.pdf
- Description:
- IC REG LIN 5V 400MA TO220-5-43
- Quantity:
- Payment:
- Shipping:
Inventory:4,063
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Product details
Overview
TLE4276SV50AKSA1 from Infineon Technologies is a monolithic high-precision linear voltage regulator delivering fixed 5.0 V output at up to 400 mA, featuring integrated short-circuit and thermal shutdown protection, ±2 % output voltage tolerance, and operation over -40 °C to +150 °C junction temperature range - used in automotive body control modules for powering microcontrollers and sensors.
For engineers reviewing the TLE4276SV50AKSA1 datasheet, TLE4276SV50AKSA1 pinout, TLE4276SV50AKSA1 application, or TLE4276SV50AKSA1 equivalent, key selection criteria include dropout voltage at full load, quiescent current under standby, reverse battery protection capability, and AEC-Q100 qualification status for automotive deployment.
Technical Context
This device implements a bandgap-referenced error amplifier with internal PNP pass transistor, enabling low-noise, low-dropout regulation without external compensation. It integrates reverse polarity protection diode and supports direct connection to 12 V/24 V automotive batteries.
Thermal foldback limits power dissipation during overload while maintaining safe junction temperatures; the enable input (EN) allows controlled start-up and system-level power sequencing in multi-rail architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2 % - ensures stable logic supply for MCU peripherals and CAN transceivers. |
| Max Output Current | 400 mA - sufficient to power multiple automotive sensors and small microcontrollers simultaneously. |
| Dropout Voltage | Typ. 0.5 V @ 400 mA - enables operation down to 5.5 V input in 12 V systems during cold-crank conditions. |
| Quiescent Current | Typ. 120 µA @ no load - minimizes standby power loss in always-on vehicle networks. |
| Operating Temp | -40 °C to +150 °C - qualified for under-hood placement per AEC-Q100 Grade 1. |
| Protection Features | Short-circuit, thermal shutdown, reverse battery - eliminates need for external protection components. |
Pinout & Package
Delivered in TO-220-5 (PG-TO220-5-43) package with heat sink tab connected to GND, supporting high-power dissipation in compact automotive enclosures.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 5.5–40 V DC; reverse-polarity protected via internal diode. |
| GND | Ground reference | Common return path; electrically tied to metal tab for thermal conduction. |
| OUT | Regulated output | Delivers stable 5.0 V to load; requires minimum 10 µF ceramic output capacitor. |
| EN | Enable control | Active-high logic input; pulls output to high-impedance when low for system power gating. |
| ADJ | Voltage sense feedback | Internally connected to bandgap reference; not user-accessible in fixed-output variant. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reverse battery protection | Eliminates need for external series diode, reducing BOM count and forward voltage drop. |
| AEC-Q100 qualified (Grade 1) | Validated for automotive ambient temperatures up to +125 °C and transient robustness per ISO 7637-2. |
| Enable pin with hysteresis | Ensures clean power-up sequencing and prevents oscillation during marginal supply ramping. |
| Low noise output (40 µVRMS) | Supports noise-sensitive analog sensor interfaces without additional filtering. |
Applications
| Body Control Module (BCM) | Door Control Unit (DCU) |
|---|---|
Use Scenario: Powering 8-bit microcontroller, LIN transceiver, and position sensors in central vehicle body electronics. IC Role / Device Role / Timing Role: Primary 5 V supply regulator with system enable coordination and fault reporting. Use Value: Enables single-supply design with integrated protection, reducing PCB area by 12 mm² vs. discrete protection solution. | Use Scenario: Supplying window lift motor controller and mirror adjustment ICs in side door assemblies. IC Role / Device Role / Timing Role: Local 5 V regulator with EN-controlled sleep mode for energy-efficient anti-pinch functionality. Use Value: Achieves <150 µA system standby current via EN-driven shutdown, meeting OEM low-power requirements. |
| Seat Control Module | Lighting Control Unit (LCU) |
Use Scenario: Providing regulated power to seat position memory ICs and heater driver logic. IC Role / Device Role / Timing Role: High-temp-stable 5 V source with thermal foldback during prolonged heater activation. Use Value: Maintains regulation continuity up to +145 °C junction temperature without latch-off. | Use Scenario: Powering LED driver ICs and ambient light sensor signal chain in interior lighting systems. IC Role / Device Role / Timing Role: Low-noise 5 V rail generator supporting 16-bit ADC reference stability. Use Value: Delivers 40 µVRMS output noise, enabling ±0.5 % lux measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower max current (300 mA), no reverse battery protection, SOT-23-5 package | Suitable only for non-automotive, low-power consumer modules | Select only if AEC-Q100 and reverse polarity immunity are not required. |
| LM2940CT-5.0/NOPB | Higher dropout (0.8 V @ 400 mA), no EN pin, TO-220-3 package | Lacks system-level power sequencing capability and thermal foldback | Use only in legacy designs where enable control and thermal management are handled externally. |
Compared with TLV73350PDBVR and LM2940CT-5.0/NOPB, TLE4276SV50AKSA1 uniquely combines AEC-Q100 qualification, reverse battery protection, and an enable input in a thermally optimized TO-220-5 package - making it the only choice for new automotive body electronics requiring functional safety-aware power management.
Availability
TLE4276SV50AKSA1 is available at Aetrix Electronics and suitable for body control modules, door control units, seat control modules, and lighting control units requiring stable component supply across automotive production lifecycles.
Supply support for TLE4276SV50AKSA1 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, and industrial control ICs, with global manufacturing and qualification infrastructure.
TLE4276SV50AKSA1 belongs to Infineon's OPTIREG™ linear regulator family, engineered specifically for automotive power supply applications demanding high reliability, extended temperature operation, and integrated protection features.
FAQ
What is the maximum input voltage rating for TLE4276SV50AKSA1?
The absolute maximum input voltage is 45 V DC, with recommended operating range of 5.5 V to 40 V. This accommodates automotive battery transients defined in ISO 7637-2 Pulse 5a (load dump up to 40 V), ensuring reliable operation without external clamping circuits.
Does TLE4276SV50AKSA1 require an external capacitor on the ADJ pin?
No - the ADJ pin is internally connected to the bandgap reference and not accessible for external adjustment. The device is a fixed 5.0 V output variant; only an output capacitor (≥10 µF ceramic) is required for stability per datasheet Section 8.2.2.
How does the enable (EN) pin behave during power-up?
The EN pin has built-in hysteresis and internal pull-down. When rising above 2.0 V (typ.), the regulator enables with soft-start behavior; below 0.8 V (typ.), output is actively discharged and placed in high-impedance state, preventing backfeeding into the input rail.
Is TLE4276SV50AKSA1 compliant with RoHS and REACH regulations?
Yes - TLE4276SV50AKSA1 is lead-free, halogen-free, and fully compliant with EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with material declarations available in Infineon's Eco Reports portal under document ID 5.00E+06.
TLE4276SV50AKSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-220-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- P-TO220-5-43
TLE4276SV50AKSA1 FAQ
1.How can I place an order for TLE4276SV50AKSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4276SV50AKSA1 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 TLE4276SV50AKSA1 reliable?
The price and inventory of TLE4276SV50AKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4276SV50AKSA1 is usually 5 days.
3.What payment methods are accepted for TLE4276SV50AKSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4276SV50AKSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4276SV50AKSA1?
TLE4276SV50AKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4276SV50AKSA1 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 TLE4276SV50AKSA1?
For technical support, including TLE4276SV50AKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4276SV50AKSA1 requirements.
6.How does Aetrix verify that TLE4276SV50AKSA1 is sourced from the original manufacturer or authorized distributors?
All TLE4276SV50AKSA1 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 TLE4276SV50AKSA1 meets industry standards.
7.What is the process for return or replacement of TLE4276SV50AKSA1?
All TLE4276SV50AKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4276SV50AKSA1, 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 TLE4276SV50AKSA1 part is unused and in its original packaging.
Return procedure for TLE4276SV50AKSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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