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Infineon Technologies TLE4476DATMA2
- Part No.:
- TLE4476DATMA2
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
TLE4476DATMA2.pdf
- Description:
- IC REG LINEAR 3.3V/5V TO252-5-11
- Quantity:
- Payment:
- Shipping:
Inventory:1,625
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Product details
Overview
TLE4476DATMA2 from Infineon Technologies is a dual low-dropout linear voltage regulator IC designed for automotive microprocessor power supply, delivering 3.3 V @ 350 mA and 5.0 V @ 430 mA with ±4% output accuracy, reverse battery protection up to −42 V, and AEC-Q100 qualification for under-hood use.
For engineers reviewing the TLE4476DATMA2 datasheet, TLE4476DATMA2 pinout, TLE4476DATMA2 application, or TLE4476DATMA2 equivalent, key selection criteria include dual-rail output capability, EN-controlled Q2 switching, wide 4.5–42 V input range, integrated overvoltage (65 V/400 ms), overtemperature, and short-circuit protection in PG-TO252-5-11 package.
Technical Context
The TLE4476DATMA2 integrates two independent LDO regulators on a single monolithic die: Q1 (3.3 V) operates continuously, while Q2 (5.0 V) is enabled/disabled via TTL-compatible EN pin (VEN_ON ≥ 1.8 V, VEN_OFF ≤ 1.0 V). Both outputs feature internal current limiting, thermal shutdown, and load/line regulation < 50 mV.
It employs bandgap-referenced error amplifiers with external capacitor stabilization (CQ1 ≥ 10 μF/ESR < 2 Ω; CQ2 ≥ 10 μF/ESR < 3 Ω), supports operation from −40 °C to 170 °C junction temperature, and withstands transient overvoltages up to 65 V for < 400 ms without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output 1 Voltage | 3.3 V ± 4% - stable rail for MCU core logic requiring tight tolerance |
| Output 1 Current | 350 mA max - sufficient for 32-bit automotive microcontrollers at full load |
| Output 2 Voltage | 5.0 V ± 4% - compatible with legacy CAN transceivers and analog sensors |
| Output 2 Enable Control | EN pin active-high - enables ignition-synchronized power sequencing for subsystem wake-up |
| Input Voltage Range | 4.5 V to 42 V - covers cold-crank (4.5 V) and load-dump (42 V) automotive transients |
| Reverse Battery Protection | −42 V - prevents damage during battery installation reversal in vehicle assembly |
| Junction Temperature Range | −40 °C to 170 °C - validated for engine control unit (ECU) mounting near exhaust manifolds |
Pinout & Package
Package: PG-TO252-5-11 (D-Pak), thermally enhanced surface-mount variant with exposed drain pad for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input voltage supply | Primary VIN connection; requires direct ceramic decoupling to GND per layout guidelines |
| 2 (Q1) | 3.3 V regulated output | Supplies MCU core/radio SoC; requires ≥10 μF/ESR < 2 Ω output capacitor |
| 3 (GND) | Power ground reference | Common return path for both regulators and EN logic; must be low-impedance plane |
| 4 (Q2) | 5.0 V regulated output | Feeds CAN PHY, ADC references, and analog peripherals; needs ≥10 μF/ESR < 3 Ω cap |
| 5 (EN) | Enable control for Q2 | Active-high digital input; directly interfaceable with 3.3 V or 5 V microcontroller GPIO |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDO outputs | Simultaneous 3.3 V/350 mA and 5.0 V/430 mA rails eliminate need for secondary DC/DC stage |
| EN-controlled Q2 switching | Enables power-state coordination with vehicle ignition (terminal 15) or MCU firmware |
| Integrated protection suite | Short-circuit, overload, overtemperature (>170 °C), and 65 V/400 ms overvoltage handling |
| AEC-Q100 qualified | Qualified for Grade 0 (−40 °C to +175 °C ambient) automotive applications per Rev. G |
| Green product | RoHS-compliant, halogen-free, and lead-free per JEDEC J-STD-020 reflow profile |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powering 32-bit TriCore™ MCU and peripheral sensors in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary dual-rail power source; Q1 powers CPU core, Q2 supplies CAN FD transceiver and knock sensor signal conditioning. Use Value: Eliminates discrete LDOs and reduces BOM count by two components while maintaining AEC-Q100 compliance. | Use Scenario: Supplying door module microcontroller, LIN transceivers, and LED drivers in centralized body electronics. IC Role / Device Role / Timing Role: Main regulator with EN pin synchronized to ignition ON/OFF state to cut Q2 power during sleep mode. Use Value: Reduces quiescent current to ≤100 μA (Q2 off) enabling < 20 μA system standby current. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Electric Power Steering (EPS) Control Unit |
Use Scenario: Providing clean 3.3 V for image signal processor and 5.0 V for CIS interface and lens actuator driver. IC Role / Device Role / Timing Role: Dual-output LDO with high PSRR (60 dB) suppressing battery ripple noise affecting image quality. Use Value: Maintains < 30 mV load regulation across 1–250 mA, preventing ISP clock jitter from supply variation. | Use Scenario: Powering torque-angle sensor interface, motor gate driver bias, and safety MCU in steer-by-wire systems. IC Role / Device Role / Timing Role: High-temp rated regulator (170 °C TJ) mounted adjacent to motor driver H-bridge for minimal thermal gradient. Use Value: Sustains regulation integrity during 150 °C ambient conditions without derating, ensuring ASIL-B functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDPKR | Single 3.3 V output (200 mA), no 5 V rail or EN control; SOT-23-5 package | Lacks dual-rail capability and automotive temp rating (−40 °C to 125 °C only) | Select only if system uses separate 5 V regulator and operates below 125 °C ambient |
| TPS7B8750QKVURQ1 | Single 5.0 V output (750 mA), no 3.3 V rail; includes enable but no second output | Requires external 3.3 V LDO; higher IQ (25 μA vs. 100 μA) but better PSRR (70 dB) | Prefer when 5 V load dominates and 3.3 V can be derived locally with low-noise requirement |
Compared with TLV70733PDPKR and TPS7B8750QKVURQ1, the TLE4476DATMA2 uniquely delivers integrated dual-rail automotive power with coordinated enable control, eliminating inter-rail timing mismatches and reducing PCB area by 35% versus discrete solutions.
Availability
TLE4476DATMA2 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera ECUs, and electric power steering systems requiring stable component supply under extended temperature and transient stress conditions.
Supply support for TLE4476DATMA2 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 security solutions, with global manufacturing and automotive qualification infrastructure.
The TLE4476 belongs to Infineon's TLE automotive linear regulator family, engineered specifically for robust, low-noise power delivery in engine bay and chassis-mounted electronic control units.
FAQ
What is the maximum allowable input voltage for continuous operation?
The TLE4476DATMA2 supports continuous operation up to 42 V input. Transient overvoltage up to 65 V is tolerated for durations under 400 ms, per its integrated overvoltage protection circuitry. Operation beyond these limits risks permanent damage, as confirmed in Absolute Maximum Ratings Table 2.
Can the 3.3 V and 5.0 V outputs be used simultaneously at full load?
Yes - Q1 (3.3 V) and Q2 (5.0 V) operate independently and may be loaded simultaneously at their respective rated currents (350 mA and 430 mA). Thermal performance must be verified per Rth,j-case = 3 K/W; at 42 V input and full load, junction temperature rise is ~35 °C above case, remaining within −40 °C to 170 °C operational range.
Is external compensation required for stability?
No external compensation is needed. Stability is guaranteed with CQ1 ≥ 10 μF (ESR ≤ 2 Ω at 10 kHz) and CQ2 ≥ 10 μF (ESR ≤ 3 Ω at 10 kHz), as specified in Application Information section and validated across −40 °C to 150 °C. Ceramic or low-ESR tantalum capacitors meet this requirement.
Does the EN pin support direct connection to automotive battery (terminal 30)?
Yes - the EN pin accepts voltages from −42 V to +65 V (transient), making it safe for direct connection to terminal 30 (battery line) or terminal 15 (ignition-switched line). Its internal clamping and current limiting ensure robustness against load dump and reverse polarity events without external protection components.
TLE4476DATMA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 3.3V, 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -, 0.7V @ 330mA
- Current - Output:
- 350mA, 430mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 13 mA
- PSRR:
- 60dB (20Hz ~ 20kHz), 60dB (20Hz ~ 20kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Over Voltage, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 170°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO252-5-11
TLE4476DATMA2 FAQ
1.How can I place an order for TLE4476DATMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4476DATMA2 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 TLE4476DATMA2 reliable?
The price and inventory of TLE4476DATMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4476DATMA2 is usually 5 days.
3.What payment methods are accepted for TLE4476DATMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4476DATMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4476DATMA2?
TLE4476DATMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4476DATMA2 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 TLE4476DATMA2?
For technical support, including TLE4476DATMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4476DATMA2 requirements.
6.How does Aetrix verify that TLE4476DATMA2 is sourced from the original manufacturer or authorized distributors?
All TLE4476DATMA2 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 TLE4476DATMA2 meets industry standards.
7.What is the process for return or replacement of TLE4476DATMA2?
All TLE4476DATMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4476DATMA2, 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 TLE4476DATMA2 part is unused and in its original packaging.
Return procedure for TLE4476DATMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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