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Infineon Technologies TLE42754GATMA1
- Part No.:
- TLE42754GATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
TLE42754GATMA1.pdf
- Description:
- IC REG LINEAR 5V 450MA TO263-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,685
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Product details
Overview
TLE42754GATMA1 from Infineon Technologies is a monolithic low-dropout linear voltage regulator in PG-TO263-5 (D²-PAK) package, delivering a regulated 5.0 V ±2% output at up to 450 mA. It features programmable power-on/undervoltage reset with delay capacitor control, reverse polarity protection, overtemperature shutdown, and operates across -40°C to +150°C for automotive power rail conditioning.
For engineers reviewing the TLE42754GATMA1 datasheet, TLE42754GATMA1 pinout, TLE42754GATMA1 application, or TLE42754GATMA1 equivalent, key selection criteria include its 42 V max input rating, 1 V minimum reset-low threshold, 3.7 K/W junction-to-case thermal resistance, AEC-Q100 qualification, and integrated current limiting for short-circuit robustness in engine control units and body electronics.
Technical Context
The TLE42754GATMA1 uses a series pass transistor controlled by an internal error amplifier comparing a precision bandgap reference to a resistive divider of the output voltage. Saturation control prevents oversaturation under high load, enabling stable regulation down to dropout voltages as low as 0.35 V at 450 mA.
Its reset function monitors output voltage via an internal comparator with typical threshold of 4.65 V and generates an open-collector reset signal (RO) that remains active until VQ exceeds the threshold plus hysteresis. Delay time is set externally via capacitor on pin D, supporting system-level sequencing requirements in automotive microcontroller power domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - tightly regulated supply for MCU core/logic rails requiring stable 5 V reference |
| Max Output Current | 450 mA - sufficient to power multiple automotive sensors or small microcontrollers without external boost |
| Input Voltage Range | -42 V to +42 V - supports load dump and reverse battery conditions per ISO 7637-2 & ISO 16750-2 |
| Dropout Voltage | 0.35 V @ 450 mA - enables operation with minimal headroom, critical for 5 V generation from 5.5 V nominal systems |
| Reset Threshold | 4.65 V (typ), 1 V min reset-low - ensures reliable microcontroller reset during brown-out while supporting low-VQ operation |
| Thermal Resistance | RthJC = 3.7 K/W - allows direct heatsink mounting via exposed tab for sustained 450 mA operation at 150°C ambient |
| Operating Temperature | -40°C to +150°C - qualified for under-hood applications including engine control modules and transmission ECUs |
Pinout & Package
Package: PG-TO263-5 (D²-PAK), thermally enhanced surface-mount package with exposed GND tab for PCB heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | High-side input terminal; requires local ceramic capacitor to ground for line transient suppression and stability |
| 2 (RO) | Reset Output | Open-collector reset signal; requires external pull-up to ≥3 V for logic-compatible reset assertion to MCU |
| 3 (GND) | Ground | Internal connection to exposed metal tab; must be soldered to large copper pour for thermal and electrical integrity |
| 4 (D) | Reset Delay | Capacitor connection point for programming reset timeout; 100 nF yields ~100 ms delay per datasheet curve |
| 5 (Q) | Output | Regulated 5 V output; requires ≥22 µF low-ESR output capacitor (≤3 Ω) for loop stability per functional range spec |
| TAB | Ground / Thermal Pad | Electrically and thermally connected to pin 3; mandatory PCB thermal relief design for reliability at full load |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Polarity Protection | Withstands -42 V input without damage - eliminates need for external series diode in battery-connected systems |
| Programmable Reset Delay | Externally adjustable via single capacitor (0.1–10 µF) - enables precise power-up sequencing for multi-rail MCUs |
| Overtemperature Shutdown | Auto-recovery thermal protection triggered at Tj > 160°C - maintains safe operation during overload or poor heatsinking |
| Short-Circuit Current Limit | Typical 600 mA foldback limit - prevents destructive current during output fault while sustaining RO functionality |
| AEC-Q100 Qualified | Grade 0 (-40°C to +150°C) qualification - meets automotive reliability and stress test requirements for safety-critical ECUs |
Applications
| Engine Control Unit (ECU) Power Supply | Body Control Module (BCM) Sensor Rail |
|---|---|
|
Use Scenario: Provides primary 5 V supply to 32-bit automotive MCU and associated CAN transceivers in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Main LDO regulator with integrated reset generator for deterministic boot sequence after ignition-on. Use Value: Withstands 42 V load dump transients and delivers stable 5 V at 400 mA while maintaining reset assertion below 4.65 V during cranking dips. |
Use Scenario: Powers interior lighting controllers, door module sensors, and LIN transceivers in vehicle body electronics networks. IC Role / Device Role / Timing Role: Secondary regulated rail with programmable reset delay to coordinate wake-up timing across distributed nodes. Use Value: Reverse polarity protection eliminates external diode, reducing BOM cost and PCB area; 150°C rating supports placement near HVAC actuators. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Camera ECU |
|
Use Scenario: Supplies 5 V to transmission solenoid drivers and position sensor interfaces in automatic gearbox control units. IC Role / Device Role / Timing Role: High-reliability LDO with overtemperature foldback to prevent latch-up during extended high-load gear shifts. Use Value: 3.7 K/W RthJC enables direct heatsink mounting on aluminum housing, sustaining 450 mA at 135°C ambient without derating. |
Use Scenario: Powers image signal processor (ISP) and serializer ICs in rear-view or surround-view camera modules mounted in lamp housings. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO providing clean 5 V for analog front-end and digital logic sections. Use Value: 0.35 V dropout allows operation from 5.5 V backup rail during main battery disconnect; RoHS-compliant green packaging meets automotive environmental mandates. |
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 |
|---|---|---|---|
| TLV73350PDBVR (Texas Instruments) | 300 mA max output, no reset function, 1.8 V min input, RthJA = 120 K/W (SOT-23) | Limited to low-power infotainment peripherals; lacks AEC-Q100 qualification and reverse polarity protection | Select only for non-safety-critical cabin modules where reset signaling and 42 V tolerance are unnecessary |
| MAX1725EUT+T (Analog Devices) | 200 mA output, fixed 5 V, no programmable reset, -40°C to +85°C industrial temp grade | Suitable for dashboard displays but not under-hood use; missing overtemperature shutdown and load-dump immunity | Use only in climate-controlled compartments with stable 12 V supply and no requirement for automotive-grade reliability |
Compared with TLV73350PDBVR and MAX1725EUT+T, the TLE42754GATMA1 uniquely combines 450 mA drive, AEC-Q100 Grade 0 qualification, programmable reset, and -42 V to +42 V input tolerance-making it the sole choice for demanding power domains in engine, transmission, and ADAS ECUs.
Availability
TLE42754GATMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control units, and ADAS camera ECUs requiring stable component supply with automotive-grade qualification and long-term lifecycle support.
Supply support for TLE42754GATMA1 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 solutions, with global manufacturing and quality certification aligned to IATF 16949.
The TLE42754GATMA1 belongs to Infineon's OPTIREG™ linear family, designed specifically for robust, high-temperature automotive power regulation with integrated protection and reset functionality for ECU subsystems.
FAQ
What is the minimum input voltage required for regulation?
The TLE42754GATMA1 requires a minimum input voltage of 5.5 V to maintain 5.0 V output regulation across temperature and load. Below this, dropout behavior occurs-output tracks input minus dropout voltage (0.35 V typ at 450 mA). This ensures compatibility with 6 V auxiliary supplies and avoids instability during cold-cranking events where battery voltage may dip to 6 V.
Can the reset output (RO) drive a microcontroller directly?
Yes-the RO pin is an open-collector NPN output rated for 25 V and 5 mA sink capability. It requires an external pull-up resistor (typically 4.7 kΩ to 5 V or 3.3 V) to generate a logic-high inactive state and logic-low active reset signal. The output remains low until VQ exceeds 4.65 V (typ), then transitions high after the programmed delay, making it compatible with standard MCU reset inputs.
Is the exposed thermal tab electrically isolated?
No-the exposed tab is internally connected to pin 3 (GND) and must be soldered to a PCB ground plane or heatsink. It is not insulated and carries full ground current. Thermal vias beneath the tab are recommended to transfer heat to inner layers; failure to connect the tab results in thermal derating exceeding 50% and potential device failure at rated load.
Does the TLE42754GATMA1 require both input and output capacitors?
Yes-an input capacitor (≥1 µF ceramic, placed within 5 mm of pins I and GND) is required to suppress line transients and ensure stability. An output capacitor (≥22 µF, ESR ≤3 Ω at 10 kHz) is mandatory for control-loop compensation; tantalum or low-ESR polymer types are preferred. Omitting either capacitor risks oscillation, reset malfunction, or thermal runaway under load.
TLE42754GATMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- 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:
- TO-263-5
TLE42754GATMA1 FAQ
1.How can I place an order for TLE42754GATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42754GATMA1 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 TLE42754GATMA1 reliable?
The price and inventory of TLE42754GATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42754GATMA1 is usually 5 days.
3.What payment methods are accepted for TLE42754GATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42754GATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42754GATMA1?
TLE42754GATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42754GATMA1 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 TLE42754GATMA1?
For technical support, including TLE42754GATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42754GATMA1 requirements.
6.How does Aetrix verify that TLE42754GATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE42754GATMA1 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 TLE42754GATMA1 meets industry standards.
7.What is the process for return or replacement of TLE42754GATMA1?
All TLE42754GATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42754GATMA1, 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 TLE42754GATMA1 part is unused and in its original packaging.
Return procedure for TLE42754GATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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