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Infineon Technologies TLE4284DV33NTMA1
- Part No.:
- TLE4284DV33NTMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TLE4284DV33NTMA1.pdf
- Description:
- IC REG LINEAR 3.3V 1A TO252-3-11
- Quantity:
- Payment:
- Shipping:
Inventory:2,863
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Product details
Overview
TLE4284DV33NTMA1 from Infineon Technologies is a monolithic NPN-type automotive-grade linear voltage regulator delivering fixed 3.3 V output at up to 1.0 A, with dropout voltage as low as 1.00 V at 100 mA and thermal shutdown/short-circuit protection. It operates across input voltages from (VQ + VDR) to 40 V and junction temperatures from −40 °C to 150 °C, and is qualified per AEC-Q100 for engine control units and body electronics.
For engineers reviewing the TLE4284DV33NTMA1 datasheet, TLE4284DV33NTMA1 pinout, TLE4284DV33NTMA1 application, or TLE4284DV33NTMA1 equivalent, key selection criteria include guaranteed 3.3 V ±50 mV output accuracy over load (10–1000 mA) and temperature (−40 to 150 °C), PG-TO252-3-11 thermal resistance (78 K/W with 300 mm² heatsink), and integrated overtemperature/overcurrent protection without external components.
Technical Context
The TLE4284DV33NTMA1 implements a fixed-output NPN pass transistor architecture with internal bandgap reference and error amplifier, enabling stable regulation under wide input transients common in 12 V automotive systems. Its dropout behavior is defined by VDR = 1.00–1.40 V across 100–1000 mA load current, and it maintains regulation down to 1 mA minimum load.
Protection logic integrates independent thermal foldback and current-limit circuitry that activates before junction temperature exceeds 150 °C or output current exceeds 2.2 A (typ.), with automatic recovery after fault removal. Input voltage range extends to 40 V to withstand load-dump events per ISO 7637-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±50 mV (10–1000 mA, −40 to 150 °C); ensures compatibility with 3.3 V microcontrollers and CAN transceivers. |
| Max Output Current | 1.0 A continuous; supports high-current sensors or interface ICs without external boost. |
| Dropout Voltage | 1.00 V (100 mA), 1.30 V (1.0 A); enables operation with ≥4.3 V input during cold-crank (≥6 V typical). |
| Input Voltage Range | Up to 40 V; withstands ISO 7637-2 Pulse 5a load-dump surges without external clamping. |
| Junction Temp Range | −40 °C to +150 °C; validated for under-hood placement in engine control modules. |
| Thermal Resistance | 78 K/W (with 300 mm² copper heatsink); allows 1.0 A operation at TA = 85 °C ambient. |
| Protections | Short-circuit, overtemperature, and reverse-polarity protected; no external components required for basic fault coverage. |
Pinout & Package
Package: PG-TO252-3-11 (DPAK), surface-mount, thermally enhanced with exposed tab connected to Pin 2 (Q/Output) for direct heatsink attachment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal regulator and feedback network; must be low-impedance connection to PCB ground plane. |
| 2, Tab | Q (Output) | Main regulated 3.3 V output; tab is electrically connected to Pin 2 and serves as primary thermal path to heatsink. |
| 3 | I (Input) | Unregulated input supply (up to 40 V); requires local 10 µF/ESR ≤10 Ω ceramic or tantalum capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Qualified to Grade 0 (−40 to +150 °C), enabling use in safety-critical power domains of ADAS and powertrain ECUs. |
| Integrated Thermal Protection | Automatic foldback reduces output current when Tj approaches 150 °C; recovers autonomously once cooled below hysteresis threshold. |
| Low ESR Output Capacitor Support | Stable with CQ ≥10 µF and ESR ≤10 Ω; compatible with low-profile polymer or multilayer ceramic capacitors. |
| Load-Dump Robustness | Withstands 40 V transient input for >100 ms per ISO 7637-2; eliminates need for external TVS in many body-control applications. |
| Green Product | RoHS-compliant, halogen-free, and lead-free per JEDEC J-STD-609; meets automotive environmental compliance requirements. |
Applications
| Engine Control Unit (ECU) Power Supply | Body Control Module (BCM) Sensor Bias |
|---|---|
Use Scenario: Supplies 3.3 V to MCU core, CAN controller, and analog front-end in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary post-regulator converting switched 5 V or 12 V rail to clean 3.3 V for digital logic and communication interfaces. Use Value: Maintains regulation during cranking (6.5 V min input) and load-dump (40 V max), eliminating brownouts and bus errors. | Use Scenario: Powers door lock actuators, interior lighting drivers, and LIN transceivers in centralized body electronics. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering stable 3.3 V from vehicle battery via fuse box distribution. Use Value: Integrated short-circuit protection prevents fuse blowing during actuator stall; thermal foldback avoids system shutdown during sustained overload. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Electric Power Steering (EPS) Motor Control Board |
Use Scenario: Provides 3.3 V bias to image sensor, ISP, and serial interface in rear-view or surround-view camera ECU. IC Role / Device Role / Timing Role: Low-noise linear regulator decoupling switching DC/DC converter output to meet CISPR 25 Class 5 EMC limits. Use Value: 30 ppm RMS output noise and 65 dB PSRR suppress switching ripple from upstream buck converters, preventing image artifacts. | Use Scenario: Supplies 3.3 V to motor position encoder interface, torque sensor signal conditioning, and MCU peripherals in EPS control unit. IC Role / Device Role / Timing Role: Safety-relevant power domain regulator with diagnostic capability via current-limit flag behavior. Use Value: Overtemperature foldback prevents thermal runaway during extended steering assist; AEC-Q100 Grade 0 ensures reliability at under-hood temperatures. |
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 |
|---|---|---|---|
| TLV73333PDBVR | 300 mA max output, 220 mV dropout at 300 mA, SOT-23-5 package, no AEC-Q100 qualification. | Limited to low-power infotainment peripherals; unsuitable for engine bay or high-current loads. | Select only for non-safety, cabin-zone applications where size and cost outweigh thermal/robustness needs. |
| NCP1117ST33T3G | 1.0 A output, 1.2 V dropout at 800 mA, TO-220/TO-263 packages, AEC-Q100 Grade 2 (−40 to +105 °C). | Lower max junction temperature rating excludes under-hood use; higher dropout increases heat dissipation at low input. | Acceptable for chassis-mounted BCMs but not for ECU or ADAS modules requiring Grade 0 operation. |
Compared with TLV73333PDBVR and NCP1117ST33T3G, the TLE4284DV33NTMA1 uniquely combines AEC-Q100 Grade 0 qualification, 1.0 A output, and 40 V input tolerance in a thermally optimized DPAK package-making it the only choice for high-reliability, high-temperature automotive power domains.
Availability
TLE4284DV33NTMA1 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.
Supply support for TLE4284DV33NTMA1 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 leadership in AEC-Q100-qualified analog and mixed-signal solutions.
The TLE4284 series belongs to Infineon's automotive linear regulator product line, engineered specifically for harsh-environment power delivery in engine, transmission, and chassis control systems where reliability under thermal and electrical stress is mandatory.
FAQ
What is the minimum input voltage required for regulation at full 1.0 A load?
The minimum input voltage is VQ + VDR = 3.3 V + 1.30 V = 4.6 V, based on the maximum dropout voltage of 1.30 V at 1.0 A load and 25 °C junction temperature. At elevated temperatures or worst-case process corners, design margin should include up to 1.40 V dropout, requiring ≥4.7 V input.
Can the TLE4284DV33NTMA1 be used without an output capacitor?
No. A minimum 10 µF output capacitor with ESR ≤10 Ω is mandatory for stability, as specified in the datasheet. Omitting it causes oscillation and output voltage collapse under load transients. Ceramic, tantalum, or polymer capacitors meeting these specs are acceptable.
Does this device support reverse-battery protection?
Yes. The TLE4284DV33NTMA1 includes integrated reverse-polarity protection and will not conduct or be damaged when input polarity is reversed up to −40 V, as confirmed in Absolute Maximum Ratings (Table 3) and Functional Description sections of the datasheet.
How does thermal performance change with PCB copper area?
Thermal resistance drops from 144 K/W (no heatsink) to 78 K/W (300 mm² copper) and 54 K/W (600 mm² copper), directly enabling higher sustained output current. For 1.0 A operation at 85 °C ambient, ≥300 mm² of 35 µm copper is required to keep junction temperature below 150 °C.
TLE4284DV33NTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 1.6 mA
- Current - Supply (Max):
- -
- PSRR:
- 65dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO252-3-11
TLE4284DV33NTMA1 FAQ
1.How can I place an order for TLE4284DV33NTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4284DV33NTMA1 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 TLE4284DV33NTMA1 reliable?
The price and inventory of TLE4284DV33NTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4284DV33NTMA1 is usually 5 days.
3.What payment methods are accepted for TLE4284DV33NTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4284DV33NTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4284DV33NTMA1?
TLE4284DV33NTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4284DV33NTMA1 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 TLE4284DV33NTMA1?
For technical support, including TLE4284DV33NTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4284DV33NTMA1 requirements.
6.How does Aetrix verify that TLE4284DV33NTMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4284DV33NTMA1 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 TLE4284DV33NTMA1 meets industry standards.
7.What is the process for return or replacement of TLE4284DV33NTMA1?
All TLE4284DV33NTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4284DV33NTMA1, 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 TLE4284DV33NTMA1 part is unused and in its original packaging.
Return procedure for TLE4284DV33NTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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