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Infineon Technologies TLE4284DV26ATMA1
- Part No.:
- TLE4284DV26ATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TLE4284DV26ATMA1.pdf
- Description:
- IC REG LINEAR 2.6V 1A TO252-3-11
- Quantity:
- Payment:
- Shipping:
Inventory:3,315
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Product details
Overview
TLE4284DV26ATMA1 from Infineon Technologies is a monolithic NPN-type adjustable/fixed-output linear voltage regulator in PG-TO252-3-11 (DPAK) package, delivering up to 1.0 A output current with 2.6 V fixed output, 1.0–1.4 V dropout (at 1.0 A), and operation across -40 °C to 150 °C junction temperature - designed for automotive microprocessor power supply under harsh conditions.
For engineers reviewing the TLE4284DV26ATMA1 datasheet, TLE4284DV26ATMA1 pinout, TLE4284DV26ATMA1 application, or TLE4284DV26ATMA1 equivalent, key selection criteria include dropout voltage at full load, thermal resistance with heatsink area, short-circuit/overtemperature protection behavior, and AEC-Q100 qualification status for automotive deployment.
Technical Context
The TLE4284DV26ATMA1 implements a robust NPN-based linear regulation architecture with internal reference (1.25 V typ), overcurrent limiting (1000–2200 mA), and thermal shutdown triggered at ~170 °C junction temperature. It operates with input voltages from (VQ + VDR) up to 40 V, supporting wide automotive battery transients.
Unlike PNP or LDO regulators, its NPN topology requires higher headroom but enables stable high-current delivery with low quiescent current (≤120 µA) and excellent PSRR (65 dB at 120 Hz), even without external ADJ capacitor - critical for noise-sensitive ECU subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.6 V ±50 mV (10 mA–1.0 A load, VI ≥ 3.7 V) |
| Max Output Current | 1.0 A continuous; current limit activates at 1000–2200 mA depending on VI–VQ |
| Dropout Voltage | 1.30–1.40 V at 1.0 A load - defines minimum input headroom required for regulation |
| Junction Temp Range | -40 °C to +150 °C - validated for under-hood automotive environments |
| Thermal Resistance | 54 K/W with 600 mm² copper heatsink - enables 1.0 A operation without forced air |
| PSRR | 65 dB at 120 Hz - suppresses alternator ripple in 12 V vehicle systems |
| AEC-Q100 Grade | Qualified per Grade 1 (-40 °C to +125 °C ambient) and extended temp validation to 150 °C TJ |
Pinout & Package
Package: PG-TO252-3-11 (DPAK), surface-mount, thermally enhanced with exposed tab connected to Pin 2 (Q/Output) for direct heatsink mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for internal circuitry and feedback path; must be low-impedance connection |
| 2, Tab | Q (Output) | Main regulated output; connects to load and ≥10 µF output capacitor (ESR ≤10 Ω); tab is electrically tied to Q and serves as thermal interface |
| 3 | I (Input) | Unregulated input supply; accepts 3.7 V to 40 V DC - withstands load-dump transients per ISO 7637-2 |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Overtemperature Protection | Automatic shutdown at ~170 °C junction temperature with hysteresis for safe restart after cooldown |
| Short-Circuit Current Limiting | Active foldback or constant-current mode prevents destructive power dissipation during output fault |
| Wide Input Voltage Range | Supports 12 V and 24 V automotive systems including cold-crank (down to ~3.7 V) and load-dump (up to 40 V) |
| Low Quiescent Current | ≤120 µA at light load - minimizes standby power loss in always-on ECU modules |
| Green Product Compliance | RoHS-compliant, lead-free, halogen-free packaging per EU Directive 2011/65/EU |
Applications
| Engine Control Unit (ECU) Core Supply | Body Control Module (BCM) Sensor Bias |
|---|---|
Use Scenario: Powers 3.3 V or 5 V LDO input rail or MCU core logic requiring stable 2.6 V bias under engine vibration and temperature cycling. IC Role / Device Role / Timing Role: Primary linear regulator supplying safety-critical microcontroller subsystems with AEC-Q100 validated reliability. Use Value: Maintains regulation during cold-crank (VI ≥ 3.7 V) and rejects alternator ripple (65 dB PSRR), ensuring deterministic MCU reset behavior. | Use Scenario: Provides precision bias voltage to analog sensors (e.g., HVAC thermistors, door position potentiometers) in BCM subassemblies. IC Role / Device Role / Timing Role: Fixed-output voltage source with tight initial accuracy (±50 mV) and low drift (<8.8 mV over temp) for sensor excitation. Use Value: Eliminates need for external trimming; stable 2.6 V reference enables <0.5% measurement error across -40 °C to 125 °C ambient. |
| Advanced Driver Assistance System (ADAS) Camera Module | Electric Power Steering (EPS) Motor Controller Logic Supply |
Use Scenario: Supplies image signal processor (ISP) auxiliary rails in compact rear-view or surround-view camera housings exposed to under-hood thermal stress. IC Role / Device Role / Timing Role: Thermally robust local regulator replacing switching solutions where EMI sensitivity prohibits DC/DC converters near CMOS image sensors. Use Value: Delivers clean 2.6 V at 500 mA with <30 ppm RMS noise - avoids pixel noise or timing jitter in serialized video links (e.g., MIPI CSI-2). | Use Scenario: Powers gate driver IC logic and current-sense amplifiers in EPS motor control units mounted near steering column or rack. IC Role / Device Role / Timing Role: High-reliability post-regulator following main 5 V DC/DC, delivering fault-tolerant 2.6 V for real-time torque calculation circuits. Use Value: Survives repeated thermal cycling (−40 °C ↔ +150 °C TJ) and load dumps (40 V/400 ms), preventing unintended torque interruption during maneuvering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73326PDBVR | 300 mA max output, 170 mV typical dropout, SOT-23-5 package | Limited to low-power logic rails; lacks AEC-Q100 qualification and automotive thermal rating | Choose only for non-automotive, space-constrained designs with <300 mA load |
| TPS7B8726QKVURQ1 | 2.6 V fixed, 500 mA, 300 mV dropout, integrated enable and reset, wettable flank QFN | Higher integration but lower current capability; no internal current limiting above 500 mA | Select when system-level diagnostics (power-good, enable control) are required and 1.0 A is not needed |
Compared with TLV73326PDBVR and TPS7B8726QKVURQ1, the TLE4284DV26ATMA1 uniquely delivers 1.0 A continuous current with automotive-grade thermal resilience (150 °C TJ), integrated short-circuit/overtemperature protection, and proven field reliability in safety-critical ECU applications - making it irreplaceable where full-load capability and ruggedness are mandatory.
Availability
TLE4284DV26ATMA1 is available at Aetrix Electronics and suitable for Engine Control Units, Body Control Modules, ADAS camera modules, and Electric Power Steering systems requiring stable component supply across long production lifecycles and automotive qualification continuity.
Supply support for TLE4284DV26ATMA1 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 electronics, and industrial control ICs, with global R&D and manufacturing infrastructure.
The TLE4284 series belongs to Infineon's automotive linear regulator product line, engineered specifically for demanding power supply roles in engine management, chassis, and driver assistance systems where reliability under extreme thermal and electrical stress is non-negotiable.
FAQ
Is TLE4284DV26ATMA1 pin-compatible with other TLE4284 variants like DV15 or DV33?
Yes - all TLE4284 fixed-output variants (DV15, DV18, DV26, DV33, DV50) share identical PG-TO252-3-11 pinout (GND–Q–I) and thermal pad connection. Only the output voltage differs; no PCB redesign is needed when swapping between fixed versions for voltage optimization.
What is the minimum input voltage required for regulation at 1.0 A output current?
At 1.0 A load, the dropout voltage is 1.30–1.40 V; therefore, minimum input voltage is VQ + VDR = 2.6 V + 1.40 V = 4.0 V. Below this, regulation is lost and output collapses - critical for cold-crank validation in 12 V systems.
Does TLE4284DV26ATMA1 require an external capacitor on the output pin?
Yes - a minimum 10 µF ceramic or tantalum capacitor with ESR ≤10 Ω must be placed directly at the Q pin to ensure stability and transient response. This capacitor also provides local energy storage during load steps and reduces output ripple under dynamic conditions.
How does the overtemperature protection behave during sustained overload?
When junction temperature exceeds ~170 °C, the device enters thermal shutdown: output is disabled, current drops to near-zero, and internal circuitry remains powered. After cooling below hysteresis threshold (~150 °C), automatic restart occurs - no external reset required, but repeated cycling indicates inadequate heatsinking or excessive power dissipation.
TLE4284DV26ATMA1 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:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 2.6V
- 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
TLE4284DV26ATMA1 FAQ
1.How can I place an order for TLE4284DV26ATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4284DV26ATMA1 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 TLE4284DV26ATMA1 reliable?
The price and inventory of TLE4284DV26ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4284DV26ATMA1 is usually 5 days.
3.What payment methods are accepted for TLE4284DV26ATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4284DV26ATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4284DV26ATMA1?
TLE4284DV26ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4284DV26ATMA1 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 TLE4284DV26ATMA1?
For technical support, including TLE4284DV26ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4284DV26ATMA1 requirements.
6.How does Aetrix verify that TLE4284DV26ATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4284DV26ATMA1 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 TLE4284DV26ATMA1 meets industry standards.
7.What is the process for return or replacement of TLE4284DV26ATMA1?
All TLE4284DV26ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4284DV26ATMA1, 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 TLE4284DV26ATMA1 part is unused and in its original packaging.
Return procedure for TLE4284DV26ATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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