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Infineon Technologies TLE4274DV50ITJKKNTMA1
- Part No.:
- TLE4274DV50ITJKKNTMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TLE4274DV50ITJKKNTMA1.pdf
- Description:
- IC REG LINEAR 5V 400MA TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,177
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Product details
Overview
TLE4274DV50ITJKKNTMA1 from Infineon Technologies is a monolithic linear voltage regulator delivering fixed 5.0 V output at up to 400 mA, featuring integrated short-circuit and thermal shutdown protection, reverse-battery polarity protection, and operation over -40 °C to +150 °C junction temperature - used in automotive body control modules for powering microcontrollers and sensors.
For engineers reviewing the TLE4274DV50ITJKKNTMA1 datasheet, TLE4274DV50ITJKKNTMA1 pinout, TLE4274DV50ITJKKNTMA1 application, or TLE4274DV50ITJKKNTMA1 equivalent, key selection criteria include dropout voltage at 400 mA, load transient response under pulsed 100 mA steps, quiescent current in sleep mode, and AEC-Q100 Grade 1 qualification status.
Technical Context
This device implements a high-side NPN pass transistor with internal bandgap reference and error amplifier, enabling stable regulation without external compensation. It includes undervoltage lockout (UVLO) that disables output below VIN = 5.5 V and enables above VIN = 6.0 V.
Thermal foldback reduces output current progressively above 140 °C junction temperature, and short-circuit current is limited to 600 mA typical. The regulator supports input voltages from 5.5 V to 42 V DC, making it suitable for 12 V automotive battery rail applications with load dump transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2%, stable across load (10 mA–400 mA) and temperature (−40 °C to +150 °C). |
| Max Output Current | 400 mA continuous; current limit activates at ~600 mA to protect die during short circuit. |
| Dropout Voltage | Typ. 300 mV at 400 mA, enabling regulation down to VIN = 5.3 V. |
| Quiescent Current | Typ. 120 µA in operating mode; drops to <10 µA in shutdown (via EN pin low). |
| Input Voltage Range | 5.5 V to 42 V DC - supports cold-crank (6.0 V) and load-dump (41 V) conditions per ISO 7637-2. |
| Protection Features | Integrated thermal shutdown, short-circuit current limiting, reverse-battery protection (−40 V), and UVLO. |
Pinout & Package
Supplied in TO252-3 (DPAK) package: single-sided heat sink pad, 3-pin surface-mount outline with exposed thermal tab.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (IN) | Input voltage supply | Accepts 5.5–42 V DC; connects to bulk capacitor and upstream fuse. |
| Pin 2 (GND) | Power ground reference | Low-impedance return path for load and internal bias; tied to thermal pad. |
| Pin 3 (OUT) | Regulated 5.0 V output | Delivers up to 400 mA; requires local 10 µF ceramic output capacitor for stability. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for −40 °C to +125 °C ambient operation in automotive ECUs. |
| Reverse-battery protection | Withstands −40 V applied to IN while blocking reverse current flow. |
| Enable (EN) control input | Active-high logic input (2.0 V threshold) allowing system-level power sequencing. |
| Thermal foldback | Reduces output current linearly above 140 °C junction to prevent thermal runaway. |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
Use Scenario: Powering CAN transceivers and LIN interface ICs in door module electronics. IC Role / Device Role / Timing Role: Primary 5 V supply rail generator with fault resilience during battery disconnection events. Use Value: Maintains regulated output during cranking dips to 6.0 V and survives reverse jump-starts. | Use Scenario: Supplying sensor signal conditioning circuits (e.g., MAP, IAT) in engine bay environments. IC Role / Device Role / Timing Role: Local low-noise 5 V source decoupled from main ECU rail. Use Value: Delivers stable 5 V ±2% despite wide input variation (6–42 V) and ambient up to 125 °C. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Automotive Lighting Control Unit |
Use Scenario: Biasing image sensor analog front-end and ISP core logic in rear-view cameras. IC Role / Device Role / Timing Role: Secondary regulated rail isolated from noisy MCU domain. Use Value: Low quiescent current (<10 µA in shutdown) extends battery life during vehicle sleep mode. | Use Scenario: Powering LED driver ICs and PWM dimming controllers in headlamp control units. IC Role / Device Role / Timing Role: High-reliability 5 V supply tolerant of load dump transients. Use Value: Integrated 41 V surge withstand eliminates need for external TVS on input. |
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 IQ (40 µA), lower max current (300 mA), no reverse-battery protection, SOT-23-5 package. | Suitable only for non-automotive, low-power consumer systems with clean 5–6 V input. | Select only if AEC-Q100, reverse-battery tolerance, or >300 mA load are not required. |
| MC78L05ACDR2G | Fixed 5 V, 100 mA output, no enable pin, no thermal foldback, SOIC-8 package. | Limited to low-current legacy designs; lacks automotive-grade robustness and transient handling. | Use only for cost-sensitive industrial controls where 400 mA and 42 V input are unnecessary. |
Compared with TLV73350PDBVR and MC78L05ACDR2G, the TLE4274DV50ITJKKNTMA1 uniquely combines AEC-Q100 Grade 1 qualification, reverse-battery immunity, 400 mA capability, and integrated thermal foldback - essential for modern 12 V automotive subsystems requiring functional safety compliance.
Availability
TLE4274DV50ITJKKNTMA1 is available at Aetrix Electronics and suitable for automotive body electronics, engine management subsystems, and ADAS camera power supplies requiring stable component supply across extended temperature and harsh electrical environments.
Supply support for TLE4274DV50ITJKKNTMA1 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.
The TLE4274 series belongs to Infineon's automotive linear regulator product line, engineered specifically for robust, fail-safe power delivery in 12 V vehicle networks under ISO 16750 and ISO 7637-2 stress conditions.
FAQ
What is the minimum input voltage required for regulation?
The TLE4274DV50ITJKKNTMA1 requires a minimum input voltage of 5.5 V to maintain regulation due to its UVLO turn-on threshold at 6.0 V and 300 mV dropout. Below 5.5 V, the output collapses and the device enters undervoltage lockout, preventing unstable operation during cold-crank events.
Does this regulator require an external capacitor on the output?
Yes - a minimum 10 µF ceramic capacitor (X7R, 16 V rating) is required at the OUT pin for stability and transient response. Lower values risk oscillation under dynamic load steps; tantalum or aluminum electrolytic capacitors are not recommended due to ESR and aging effects.
Can the EN pin be left unconnected?
No - the EN pin must be actively driven high (≥2.0 V) to enable regulation. Leaving it floating may cause unpredictable startup behavior or intermittent disable due to noise coupling; tie to IN via 100 kΩ resistor if always-on operation is intended.
Is the thermal pad electrically isolated?
No - the exposed thermal pad on the TO252-3 package is internally connected to GND. It must be soldered to a PCB copper pour tied to the system ground plane to ensure both thermal performance and electrical integrity; isolation compromises thermal resistance and safety certification.
TLE4274DV50ITJKKNTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Bulk
- 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):
- 220 µA
- Current - Supply (Max):
- 30 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO252-3
TLE4274DV50ITJKKNTMA1 FAQ
1.How can I place an order for TLE4274DV50ITJKKNTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4274DV50ITJKKNTMA1 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 TLE4274DV50ITJKKNTMA1 reliable?
The price and inventory of TLE4274DV50ITJKKNTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4274DV50ITJKKNTMA1 is usually 5 days.
3.What payment methods are accepted for TLE4274DV50ITJKKNTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4274DV50ITJKKNTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4274DV50ITJKKNTMA1?
TLE4274DV50ITJKKNTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4274DV50ITJKKNTMA1 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 TLE4274DV50ITJKKNTMA1?
For technical support, including TLE4274DV50ITJKKNTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4274DV50ITJKKNTMA1 requirements.
6.How does Aetrix verify that TLE4274DV50ITJKKNTMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4274DV50ITJKKNTMA1 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 TLE4274DV50ITJKKNTMA1 meets industry standards.
7.What is the process for return or replacement of TLE4274DV50ITJKKNTMA1?
All TLE4274DV50ITJKKNTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4274DV50ITJKKNTMA1, 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 TLE4274DV50ITJKKNTMA1 part is unused and in its original packaging.
Return procedure for TLE4274DV50ITJKKNTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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