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Infineon Technologies TLE4284DV50ATMA1
- Part No.:
- TLE4284DV50ATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TLE4284DV50ATMA1.pdf
- Description:
- IC REG LINEAR 5V 1A TO252-3-11
- Quantity:
- Payment:
- Shipping:
Inventory:1,547
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Product details
Overview
TLE4284DV50ATMA1 from Infineon Technologies is a monolithic NPN-type fixed-output 5.0 V low-dropout linear voltage regulator in PG-TO252-3-11 (DPAK) package, delivering up to 1.0 A output current with typical dropout voltage of 1.0–1.4 V at full load, short-circuit and overtemperature protection, and qualified for automotive applications per AEC-Q100.
For engineers reviewing the TLE4284DV50ATMA1 datasheet, TLE4284DV50ATMA1 pinout, TLE4284DV50ATMA1 application, or TLE4284DV50ATMA1 equivalent, key selection criteria include its 5.0 V fixed output, 1.0 A continuous current capability, -40 °C to +150 °C junction temperature range, 40 V maximum input voltage, and DPAK thermal performance with heatsink integration.
Technical Context
The TLE4284DV50ATMA1 implements a robust NPN pass transistor architecture with internal reference, error amplifier, and protection circuitry-enabling stable regulation under wide input transients (up to 40 V) and harsh thermal conditions. Its dropout behavior is load-dependent: 1.00 V at 100 mA, rising to 1.40 V at 1.0 A.
Designed specifically for automotive microprocessor supply rails, it integrates overtemperature shutdown with hysteresis and foldback current limiting during short circuits. The device operates without external compensation and requires only a single 10 µF output capacitor (ESR ≤ 10 Ω) for stability across its full temperature and load range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±50 mV (10 mA–1.0 A load, VI ≥ 6.0 V) |
| Max Output Current | 1.0 A continuous; current limit activates at 1.0–2.2 A depending on VI–VQ |
| Dropout Voltage | 1.30–1.40 V at 1.0 A load; defines minimum VI needed for regulation |
| Input Voltage Range | 6.0 V to 40 V; supports 12 V/24 V automotive battery systems with load dump tolerance |
| Junction Temp Range | -40 °C to +150 °C; enables placement near powertrain or engine control units |
| Thermal Resistance | 54 K/W with 600 mm² copper heatsink; critical for sustained 1.0 A operation in sealed enclosures |
| PSRR | 65 dB at 120 Hz; suppresses alternator ripple in vehicle electrical systems |
Pinout & Package
PG-TO252-3-11 (DPAK) surface-mount package with exposed thermal tab (Pin 2/Tab) for direct heatsink attachment. Pin 1 = GND, Pin 2/Tab = Q (Output), Pin 3 = I (Input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal regulator and external capacitor return path |
| 2 / Tab | Q (Output) | Main regulated 5.0 V output; must connect to ≥10 µF/ESR ≤10 Ω capacitor and thermal plane |
| 3 | I (Input) | Unregulated input (6–40 V); feeds NPN pass element and internal bias circuitry |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Qualified | Validated for automotive Grade 0 (-40 °C to +150 °C) operation with stress testing compliance |
| Integrated Protection | Auto-recovering short-circuit foldback + thermal shutdown with hysteresis prevents latch-up |
| Low ESR Capacitor Support | Stable with 10 µF ceramic or tantalum output cap (ESR ≤10 Ω), reducing board area vs. electrolytic |
| High PSRR at Low Frequency | 65 dB rejection of 120 Hz alternator ripple ensures clean MCU supply under charging conditions |
| RoHS & Green Compliant | Lead-free, halogen-free construction meets automotive environmental requirements |
Applications
| Engine Control Unit (ECU) Power Supply | Body Control Module (BCM) Core Logic Rail |
|---|---|
Use Scenario: Supplies 5.0 V to microcontroller, CAN transceivers, and sensor interfaces in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary post-regulator for stabilized logic rail downstream of DC-DC converter or battery. Use Value: Maintains regulation during cold-crank (VI ≥ 6.0 V) and load-dump (VI ≤ 40 V) events per ISO 7637-2. | Use Scenario: Powers 5 V logic in door modules, lighting controllers, and seat position memory circuits. IC Role / Device Role / Timing Role: Local point-of-load regulator for distributed 5 V domains with independent thermal management. Use Value: Enables compact DPAK layout with integrated heatsinking-no external thermal vias required for ≤1.0 A loads. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Automotive Infotainment Display Subsystem |
Use Scenario: Provides noise-cleaned 5.0 V to image signal processor (ISP) and serializer ICs in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Low-noise analog supply rail with 30 ppm RMS output noise (10 Hz–10 kHz). Use Value: Prevents switching noise coupling into analog video paths, preserving SNR in high-resolution imaging. | Use Scenario: Supplies 5 V to touch controller, display driver, and audio codec in center-stack infotainment head units. IC Role / Device Role / Timing Role: Secondary regulator after main PMIC, handling transient-heavy UI loads. Use Value: Sustains 1.0 A peak current during screen brightness ramp-up without brownout or thermal throttling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117-50CDCYR | Lower max input (15 V), lower current (800 mA), higher dropout (1.2 V typ. @ 800 mA) | Not rated for automotive temp range; limited to industrial (-40 °C to +125 °C) | Use where input voltage stays below 15 V and ambient temperature remains ≤125 °C |
| TPS7B6950QDCYRQ1 | Higher PSRR (70 dB), lower quiescent current (45 µA), same 5.0 V/1.0 A rating and AEC-Q100 Grade 1 | Grade 1 (-40 °C to +125 °C) only; lacks Grade 0 qualification for under-hood use | Prefer for cabin electronics where ultra-low IQ and ripple rejection outweigh extended temp needs |
Compared with TLV1117-50CDCYR and TPS7B6950QDCYRQ1, the TLE4284DV50ATMA1 uniquely combines Grade 0 temperature rating, 40 V input tolerance, and DPAK thermal performance-making it the only option qualified for direct engine-bay placement with full 1.0 A capability.
Availability
TLE4284DV50ATMA1 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and infotainment subsystems requiring stable component supply under extended temperature and voltage stress.
Supply support for TLE4284DV50ATMA1 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 power solutions.
The TLE4284 series belongs to Infineon's automotive linear regulator product line, engineered for reliable post-regulation in safety-critical vehicle subsystems where input voltage instability and thermal extremes are routine.
FAQ
Is TLE4284DV50ATMA1 pin-compatible with other TLE4284 variants like DV15 or DV33?
No. All TLE4284 fixed-output variants-including DV15, DV18, DV26, DV33, and DV50-share identical PG-TO252-3-11 pinout (GND, Q, I), but output voltage is laser-trimmed during manufacturing and not interchangeable. Swapping part numbers changes only the regulated output; no external resistor network is required or supported.
What is the minimum input voltage required for regulation at full 1.0 A load?
At 1.0 A output current, the dropout voltage is 1.30–1.40 V. Therefore, minimum input voltage is VQ + VDR = 5.0 V + 1.40 V = 6.4 V. Below this, regulation fails and output drops linearly with input.
Can TLE4284DV50ATMA1 be used without an output capacitor?
No. A minimum 10 µF capacitor with ESR ≤10 Ω is mandatory at the Q pin for stability across temperature and load. Omission causes oscillation or thermal runaway due to phase margin loss in the internal feedback loop.
Does TLE4284DV50ATMA1 require a heatsink for 1.0 A continuous operation?
Yes. With RthJA = 144 K/W on standard FR4, junction temperature would exceed 150 °C at 1.0 A. A 600 mm² copper heatsink reduces RthJA to 54 K/W, enabling safe continuous operation at full load up to +105 °C ambient.
TLE4284DV50ATMA1 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:
- Last Time Buy
- 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):
- 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
TLE4284DV50ATMA1 FAQ
1.How can I place an order for TLE4284DV50ATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4284DV50ATMA1 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 TLE4284DV50ATMA1 reliable?
The price and inventory of TLE4284DV50ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4284DV50ATMA1 is usually 5 days.
3.What payment methods are accepted for TLE4284DV50ATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4284DV50ATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4284DV50ATMA1?
TLE4284DV50ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4284DV50ATMA1 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 TLE4284DV50ATMA1?
For technical support, including TLE4284DV50ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4284DV50ATMA1 requirements.
6.How does Aetrix verify that TLE4284DV50ATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4284DV50ATMA1 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 TLE4284DV50ATMA1 meets industry standards.
7.What is the process for return or replacement of TLE4284DV50ATMA1?
All TLE4284DV50ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4284DV50ATMA1, 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 TLE4284DV50ATMA1 part is unused and in its original packaging.
Return procedure for TLE4284DV50ATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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