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Infineon Technologies TLE72742DATMA1
- Part No.:
- TLE72742DATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TLE72742DATMA1.pdf
- Description:
- IC REG LINEAR 5V 300MA TO252-3
- Quantity:
- Payment:
- Shipping:
Inventory:24,454
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Product details
Overview
TLE72742DATMA1 from Infineon Technologies is a monolithic 5 V low-dropout linear voltage regulator for automotive load currents up to 300 mA, featuring ±2% output voltage accuracy, ultra-low 20 µA quiescent current, 250 mV typical dropout at 200 mA, and AEC-Q100 qualification for under-hood applications.
For engineers reviewing the TLE72742DATMA1 datasheet, TLE72742DATMA1 pinout, TLE72742DATMA1 application, or TLE72742DATMA1 equivalent, key selection criteria include ceramic capacitor stability down to 470 nF, integrated overtemperature shutdown, reverse-current sink protection limiting output voltage to ≤5.5 V, and operation across -40°C to +150°C junction temperature.
Technical Context
The TLE72742DATMA1 employs a charge-pump-assisted bandgap reference architecture enabling stable 5 V regulation with ultra-low quiescent current, while its internal overtemperature shutdown and output current limitation (301–800 mA) provide fault resilience in automotive transients. It accepts input voltages from 5.5 V to 42 V and maintains regulation even during cold-crank conditions.
Stability is guaranteed with ceramic output capacitors as low as 470 nF (±30% tolerance) and ESR ≤10 Ω at 10 kHz. The device integrates a dedicated output sink path to clamp reverse-current-induced voltage spikes to ≤5.5 V, protecting downstream logic without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - ensures compatibility with 5 V microcontrollers and CAN transceivers under full automotive temperature and load range. |
| Quiescent Current | 20 µA typ. - enables always-on battery-connected modules (e.g., alarm controllers, telematics backup power) with negligible parasitic drain. |
| Dropout Voltage | 250 mV typ. at 200 mA - sustains regulation during 6 V cold-crank events when input drops near 5.25 V. |
| Max Output Current | 300 mA continuous - powers multiple automotive sensors, LIN transceivers, or small MCU peripherals from a single rail. |
| Stable Capacitance | 470 nF ceramic - eliminates need for bulky tantalum or electrolytic capacitors, reducing board area and improving reliability. |
| Operating Temp | -40°C to +150°C junction - certified for engine control units, transmission control modules, and under-dash electronics. |
| Protection Features | Overtemperature shutdown + current limiting - prevents thermal runaway during short-circuit or overload without external circuitry. |
Pinout & Package
Package: PG-TO252-3 (DPAK), thermally enhanced with exposed heat slug internally connected to GND. Mounting requires direct thermal connection to PCB copper pour or heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | High-side supply input; must be decoupled to GND with ceramic capacitor placed directly at IC pin. |
| 2 (GND) | Ground | Reference and power return; internally bonded to heat slug - requires low-impedance PCB GND plane connection. |
| 3 (Q) | Output | Regulated 5 V output; includes integrated sink path to limit reverse-current voltage to ≤5.5 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 20 µA typ. - extends battery life in always-on vehicle systems without compromising startup responsiveness. |
| Ceramic capacitor stability | 470 nF minimum - enables compact, high-reliability filtering without ESR tuning or secondary compensation networks. |
| Reverse-current sink protection | Clamps Q-pin voltage to ≤5.5 V - eliminates need for external reverse-bias diode in dual-supply or hot-swap configurations. |
| AEC-Q100 qualified | Grade 0 (-40°C to +150°C) - validated for mission-critical automotive ECUs requiring zero field failures over lifetime. |
Applications
| Engine Control Unit (ECU) Power Rail | Body Control Module (BCM) Sensor Supply |
|---|---|
Use Scenario: Powers 5 V microcontroller core, CAN interface, and analog sensor front-ends in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying critical safety-related logic and communication peripherals. Use Value: Maintains regulation during 6 V cold-crank dips and rejects alternator ripple via 60 dB PSRR at 100 Hz. | Use Scenario: Supplies 5 V to door module Hall-effect sensors, LIN transceivers, and LED drivers in body electronics. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering stable voltage to distributed low-power subsystems. Use Value: 20 µA quiescent current minimizes battery drain during vehicle sleep mode (<100 µA system target). |
| Telematics Control Unit (TCU) Backup Power | Transmission Control Module (TCM) Core Supply |
Use Scenario: Provides always-on 5 V rail to real-time clock, GPS backup memory, and cellular modem wake-up circuitry. IC Role / Device Role / Timing Role: Battery-backed LDO ensuring data retention and fast network reconnection after ignition cycle. Use Value: Stable 470 nF ceramic decoupling enables compact layout in space-constrained telematics modules. | Use Scenario: Regulates 5 V for transmission solenoid drivers, position sensors, and MCU in automatic gearbox control units. IC Role / Device Role / Timing Role: High-temp tolerant LDO operating adjacent to powertrain heat sources. Use Value: 150°C junction rating and thermal shutdown prevent latch-up during prolonged high-load gear shifts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE42744DV33 | 3.3 V fixed output; 250 mA max; same PG-TO252-3 package and AEC-Q100 Grade 0 rating. | Used where 3.3 V logic domains coexist with 5 V peripherals; not interchangeable without schematic revision. | Select when system requires 3.3 V core voltage with identical thermal and automotive robustness. |
| TLV73350PDBVR | 5 V output; 300 mA; 35 µA IQ; SOT-23-5 package; no reverse-current sink; not AEC-Q100 qualified. | Suitable for non-automotive industrial or consumer designs needing smaller footprint but lower reliability assurance. | Choose only for cost-sensitive, non-safety-critical applications outside automotive qualification scope. |
Compared with TLE42744DV33 and TLV73350PDBVR, the TLE72742DATMA1 uniquely combines 5 V output, AEC-Q100 Grade 0 qualification, reverse-current sink protection, and 470 nF ceramic stability-making it the sole option for high-reliability automotive 5 V point-of-load regulation where battery disconnection transients and thermal extremes are present.
Availability
TLE72742DATMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, telematics control units, and transmission control modules requiring stable component supply across extended automotive lifecycles.
Supply support for TLE72742DATMA1 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 manufacturing and qualification infrastructure.
The OPTIREG™ linear regulator product line-including the TLE72742DATMA1-is engineered specifically for harsh-environment automotive power delivery, emphasizing ultra-low IQ, thermal resilience, and integrated fault protection for ECU, BCM, and TCU applications.
FAQ
What is the minimum output capacitance required for stability?
The TLE72742DATMA1 is stable with a minimum 470 nF ceramic output capacitor (±30% tolerance), verified per datasheet Table 3. This value assumes an ESR ≤10 Ω at 10 kHz. Larger values improve transient response but are not required for basic stability across the full operating temperature and load range.
Does the device require an input capacitor?
Yes - a ceramic capacitor ≥100 nF must be placed directly between the I pin and GND, as specified in the datasheet's "Pin definitions and functions" section. This minimizes high-frequency noise coupling and supports charge-pump operation during low-IQ modes, preventing instability or startup failure.
Can the TLE72742DATMA1 be used in non-automotive applications?
Yes - its wide input range (5.5–42 V), -40°C to +150°C operation, and 20 µA quiescent current make it suitable for industrial IoT gateways, battery-powered test equipment, and railway signaling systems. However, AEC-Q100 qualification adds assurance but is not required for those use cases.
How does the reverse-current sink function protect downstream devices?
The integrated sink path activates when reverse current flows into the Q pin (e.g., during battery disconnect or hot-swap), clamping the output voltage to ≤5.5 V. This prevents overvoltage damage to 5 V-tolerant logic, CAN transceivers, and ADC inputs without requiring external Schottky diodes or complex protection circuitry.
TLE72742DATMA1 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:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 200mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 30 µA
- Current - Supply (Max):
- 40 µA
- PSRR:
- 60dB (100Hz)
- 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
TLE72742DATMA1 FAQ
1.How can I place an order for TLE72742DATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE72742DATMA1 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 TLE72742DATMA1 reliable?
The price and inventory of TLE72742DATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE72742DATMA1 is usually 5 days.
3.What payment methods are accepted for TLE72742DATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE72742DATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE72742DATMA1?
TLE72742DATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE72742DATMA1 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 TLE72742DATMA1?
For technical support, including TLE72742DATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE72742DATMA1 requirements.
6.How does Aetrix verify that TLE72742DATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE72742DATMA1 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 TLE72742DATMA1 meets industry standards.
7.What is the process for return or replacement of TLE72742DATMA1?
All TLE72742DATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE72742DATMA1, 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 TLE72742DATMA1 part is unused and in its original packaging.
Return procedure for TLE72742DATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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