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Infineon Technologies TLE42754DATMA1
- Part No.:
- TLE42754DATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
TLE42754DATMA1.pdf
- Description:
- IC REG LINEAR 5V 450MA TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:7,153
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Product details
Overview
TLE42754DATMA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-TO252-5 (D-PAK) package, designed for automotive power supply rails. It delivers a stable 5.0 V ±2% output at up to 450 mA, supports input voltages from 5.5 V to 42 V, features programmable power-on reset delay via external capacitor, and operates across -40°C to +150°C junction temperature.
For engineers reviewing the TLE42754DATMA1 datasheet, TLE42754DATMA1 pinout, TLE42754DATMA1 application, or TLE42754DATMA1 equivalent, this device is selected for robust 5 V regulation in engine control units, body electronics, and ADAS domain controllers where reverse polarity protection, overtemperature shutdown, and reset signaling down to VQ = 1 V are required.
Technical Context
The TLE42754DATMA1 integrates a precision bandgap reference, error amplifier, and Darlington-series pass transistor with saturation control to maintain regulation under high load current while minimizing dropout. Its internal reset generator monitors output voltage and asserts an open-collector reset signal (RO) when VQ falls below ~4.65 V, with delay timing set by capacitor on pin D.
Protection circuitry includes reverse-polarity blocking (withstand -42 V input), current-limiting foldback, and thermal shutdown triggered at ~170°C junction temperature. The regulator requires only two external capacitors - CI at input and CQ (≥22 µF, ESR ≤3 Ω) at output - for stability and transient response per AEC-Q100-compliant automotive operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - Ensures microcontroller I/O and sensor biasing remain within TTL/CMOS logic thresholds across temperature and load. |
| Max Output Current | 450 mA - Sufficient to power multiple automotive MCUs, CAN transceivers, and analog front-ends simultaneously. |
| Input Voltage Range | 5.5 V to 42 V - Supports cold-crank (5.5 V) and load-dump (42 V) conditions without external clamping. |
| Dropout Voltage | Typ. 300 mV @ 450 mA - Enables regulation even when battery drops to 5.3 V, critical for start-stop systems. |
| Reset Threshold | VQ,rt = 4.65 V (typ.) - Guarantees clean system reset before MCU brown-out, with RO sinking capability down to VQ = 1 V. |
| Junction Temp Range | -40°C to +150°C - Qualified per AEC-Q100 Grade 0, enabling placement near powertrain ECUs and under-hood modules. |
| ESD Robustness | HBM ±2 kV, CDM ±750 V - Meets automotive board-level ESD immunity requirements without additional protection. |
Pinout & Package
Package: PG-TO252-5 (D-PAK), thermally enhanced surface-mount package with exposed tab connected internally to GND for heatsinking. Pin 3 (GND) and TAB are electrically common; PCB copper area under tab improves thermal resistance (RthJA = 27 K/W on 2s2p FR4).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Primary VIN connection; requires local ceramic capacitor to suppress line transients and improve PSRR. |
| 2 (RO) | Reset Output | Open-collector active-low reset signal; requires external pull-up to ≥3 V for interfacing with MCU reset inputs. |
| 3 (GND) | Ground | Reference node for regulator and reset circuits; internally tied to exposed thermal tab. |
| 4 (D) | Reset Delay | Connects to external timing capacitor (e.g., 100 nF) to set power-on reset delay from 1 ms to >1 s. |
| 5 (Q) | Output | Regulated 5 V supply; must be decoupled with ≥22 µF low-ESR capacitor (≤3 Ω) for loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Polarity Protection | Withstands -42 V input without damage or latch-up - eliminates need for external series diode in battery-reversed scenarios. |
| Programmable Reset Delay | Delay time set externally via capacitor on pin D - enables precise synchronization with MCU boot sequence or peripheral initialization. |
| Low Quiescent Current | Typ. 120 µA (no load) - minimizes standby power draw in always-on vehicle networks (e.g., LIN gateway sleep mode). |
| Integrated Overtemperature Shutdown | Thermal shutdown at ~170°C with automatic recovery - protects against sustained overload or poor heatsinking without external sensors. |
| AEC-Q100 Qualified | Grade 0 (-40°C to +150°C) qualification - validated for mission-critical automotive applications including powertrain and chassis control. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Regulates 5 V rail for 32-bit MCU, injector drivers, and knock sensor interface in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Primary post-buck LDO supplying core logic and analog peripherals; reset signal initiates firmware self-test after cold crank. Use Value: Maintains regulation during 5.5 V cranking dips and rejects 42 V load-dump spikes - eliminating need for discrete TVS and series FET. |
Use Scenario: Powers door module microcontrollers, window motor drivers, and LIN transceivers in centralized BCM architectures. IC Role / Device Role / Timing Role: System-level 5 V supervisor with programmable reset delay to coordinate multi-peripheral wake-up sequencing. Use Value: Reverse polarity tolerance prevents field failures from battery misconnection; 150°C rating allows placement near fuse box heat sources. |
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
|
Use Scenario: Supplies vision processor I/O banks and radar MMIC bias in camera/EPS fusion ECUs. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO ensuring clean 5 V for analog signal chains and high-speed digital interfaces. Use Value: Dropout <300 mV at full load preserves headroom for 5 V rail integrity during simultaneous camera + radar activation surges. |
Use Scenario: Provides regulated 5 V to torque sensor ASICs, motor gate drivers, and safety-monitoring MCUs in EPS control units. IC Role / Device Role / Timing Role: Safety-critical power supervisor with fail-safe reset assertion and thermal derating feedback. Use Value: Overtemperature shutdown and current limiting meet ASIL-B functional safety requirements without external monitoring circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout automotive voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCP1117ST50T3G | Fixed 5 V output, 1 A max, no reset function, wider input range (−20 V to 20 V), not AEC-Q100 qualified | Lacks programmable reset, thermal shutdown only, limited to non-safety-critical cabin modules | Select only for cost-sensitive interior modules where reset coordination and extended temp range are unnecessary. |
| TLV73350PDBVR | 5 V output, 300 mA, ultra-low IQ (4 µA), no reverse polarity or load-dump protection, industrial temp only (−40°C to +125°C) | No automotive-grade protection or qualification; unsuitable for under-hood or powertrain use | Use only in battery-powered infotainment accessories with strict quiescent current budgets and benign environments. |
Compared with NCP1117ST50T3G and TLV73350PDBVR, the TLE42754DATMA1 uniquely combines AEC-Q100 Grade 0 qualification, −42 V reverse polarity tolerance, programmable reset, and 450 mA output in a thermally optimized D-PAK - making it the sole choice for safety- and reliability-critical automotive subsystems.
Availability
TLE42754DATMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, and advanced driver assistance systems requiring stable component supply, long-term automotive lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for TLE42754DATMA1 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 TLE42754 belongs to Infineon's OPTIREG™ linear family - engineered specifically for automotive power supply resilience, featuring integrated protection, wide operating ranges, and AEC-Q100 compliance for engine bay and chassis applications.
FAQ
What is the minimum input voltage required for regulation?
The TLE42754DATMA1 requires a minimum input voltage of 5.5 V to maintain 5.0 V output regulation under all load and temperature conditions. Below this threshold, the device enters dropout mode and output voltage tracks input minus dropout voltage (~300 mV at 450 mA), verified per datasheet Section 3.2 Functional Range.
Can the reset function be disabled?
Yes - the reset function is disabled by leaving pin RO (pin 2) unconnected and pin D (pin 4) open. No external components are needed for disable; the internal reset generator remains inactive, and RO stays in high-impedance state, confirmed in datasheet Section 2.2 Pin Definitions.
Is an input capacitor mandatory?
An input capacitor (CI) is strongly recommended - typically 1 µF ceramic placed close to pins I and GND - to suppress high-frequency noise and improve transient response during load steps. While not strictly mandatory for basic regulation, omission risks instability under fast load transients, as specified in Section 5.2.1.
How does thermal performance differ between PG-TO252-5 and PG-TO263-5 packages?
The PG-TO263-5 (TLE42754G) offers lower RthJA (22 K/W vs. 27 K/W on 2s2p FR4) due to larger exposed pad area, enabling ~15% higher continuous output current at same ambient temperature. Both share identical RthJC (3.7 K/W), confirming equal die-to-case thermal efficiency.
TLE42754DATMA1 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:
- 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 @ 300mA
- Current - Output:
- 450mA
- Current - Quiescent (Iq):
- 200 µA
- Current - Supply (Max):
- 25 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Reset
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO252-5
TLE42754DATMA1 FAQ
1.How can I place an order for TLE42754DATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42754DATMA1 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 TLE42754DATMA1 reliable?
The price and inventory of TLE42754DATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42754DATMA1 is usually 5 days.
3.What payment methods are accepted for TLE42754DATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42754DATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42754DATMA1?
TLE42754DATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42754DATMA1 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 TLE42754DATMA1?
For technical support, including TLE42754DATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42754DATMA1 requirements.
6.How does Aetrix verify that TLE42754DATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE42754DATMA1 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 TLE42754DATMA1 meets industry standards.
7.What is the process for return or replacement of TLE42754DATMA1?
All TLE42754DATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42754DATMA1, 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 TLE42754DATMA1 part is unused and in its original packaging.
Return procedure for TLE42754DATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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