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Infineon Technologies TLE42754EXUMA1
- Part No.:
- TLE42754EXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLE42754EXUMA1.pdf
- Description:
- IC REG LINEAR 5V 450MA SSOP-14-1
- Quantity:
- Payment:
- Shipping:
Inventory:1,085
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Product details
Overview
TLE42754EXUMA1 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 regulated 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 TLE42754EXUMA1 datasheet, TLE42754EXUMA1 pinout, TLE42754EXUMA1 application, or TLE42754EXUMA1 equivalent, key selection criteria include its AEC-Q100 qualification, reverse polarity protection, reset output with 1 V minimum sink capability, thermal shutdown, and compatibility with high-ESR output capacitors up to 3 Ω.
Technical Context
The TLE42754EXUMA1 integrates a precision bandgap reference, error amplifier, and Darlington-series pass transistor with saturation control to maintain regulation under varying load and input conditions. Its internal architecture includes dedicated circuits for overtemperature shutdown, current limiting, and reverse-polarity protection-enabling robust operation in harsh automotive environments without external protection components.
Reset functionality is implemented as an open-collector output (RO) triggered when VQ falls below 4.65 V (typ), with delay timing set by an external capacitor on the D pin. The regulator maintains stability with a minimum 22 µF output capacitor and tolerates ESR up to 3 Ω at 10 kHz, simplifying layout in space-constrained ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - ensures stable MCU/ASIC core logic supply within automotive voltage tolerance bands |
| Max Output Current | 450 mA - sufficient to power multiple CAN transceivers, sensors, and microcontroller peripherals simultaneously |
| Input Voltage Range | 5.5 V to 42 V - supports cold-crank (5.5 V) and load-dump (42 V) transients per ISO 7637-2 |
| Dropout Voltage | Typ. 300 mV @ 450 mA - enables regulation down to 5.3 V input during battery sag, preserving system uptime |
| Reset Threshold | VQ,rt = 4.65 V (typ) - initiates controlled system reset before microcontroller brown-out, preventing undefined states |
| Junction Temp Range | -40°C to +150°C - qualified for under-hood placement in engine control modules and transmission controllers |
| Thermal Resistance RthJC | 3.7 K/W - enables efficient heat transfer to PCB copper pour or heatsink, critical for continuous 450 mA operation |
Pinout & Package
Package: PG-TO252-5 (D-PAK), thermally enhanced surface-mount package with exposed tab connected internally to GND for direct PCB thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Primary DC input connection; requires local ceramic bypass capacitor to suppress line transients |
| 2 (RO) | Reset Output | Open-collector signal indicating undervoltage condition; requires external pull-up to monitored rail |
| 3 (GND) | Ground | Reference node for regulator and reset circuitry; internally tied to exposed tab for thermal path |
| 4 (D) | Reset Delay Timing | Connects to external capacitor to set power-on reset delay time; floating disables reset function |
| 5 (Q) | Output | Regulated 5 V supply output; must be decoupled with ≥22 µF low-ESR capacitor for loop stability |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Reset Delay | Delay time set externally via capacitor on D pin - eliminates need for separate reset IC and reduces BOM count |
| Reverse Polarity Protection | Withstands -42 V input - prevents damage during battery misconnection in service or assembly |
| Low Quiescent Current | Typ. 120 µA - minimizes standby power loss in always-on vehicle networks (e.g., LIN gateway sleep mode) |
| Short-Circuit Proof Operation | Current-limited to ~600 mA - sustains fault condition without latch-up or thermal runaway |
| AEC-Q100 Qualified | Grade 0 (-40°C to +150°C) - validated for safety-critical power domains in ADAS and powertrain systems |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Supplies 5 V to microcontroller, CAN transceiver, and analog sensor interface in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary 5 V LDO for safety-critical domain controller; provides clean, reset-synchronized power during cranking and load dump. Use Value: Maintains regulation down to 5.5 V input and survives 42 V transients, eliminating need for upstream TVS or discrete protection. | Use Scenario: Powers door module MCU, window motor drivers, and LIN transceivers in centralized body electronics. IC Role / Device Role / Timing Role: Centralized 5 V regulator with integrated reset signaling for coordinated subsystem wake-up and fault recovery. Use Value: Programmable reset delay ensures sequenced power-up of dependent peripherals, avoiding bus contention on shared LIN/CAN lines. |
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
Use Scenario: Delivers regulated 5 V to radar SoC, camera ISP, and safety monitor ICs in front-camera or surround-view ECUs. IC Role / Device Role / Timing Role: Safety-relevant power rail with AEC-Q100 Grade 0 qualification and thermal shutdown for fail-safe operation. Use Value: 150°C max junction temperature rating enables placement near heat-generating processors without derating. | Use Scenario: Provides 5 V supply to torque sensor interface, motor control MCU, and ASIL-B diagnostic circuitry in EPS control units. IC Role / Device Role / Timing Role: Fault-tolerant regulator with reverse polarity and short-circuit protection to meet ISO 26262 functional safety requirements. Use Value: Integrated protections reduce validation effort for ASIL-B power domain, lowering FMEDA complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower max current (300 mA), no reset function, smaller SOT-23-5 package | Lacks AEC-Q100 qualification and automotive thermal range; suitable only for non-safety consumer-grade modules | Select only for cost-sensitive, non-automotive designs where reset signaling and 450 mA load are unnecessary |
| TPS7B6950QDCYRQ1 | Same 5 V output, 450 mA rating, and AEC-Q100 Grade 1 (-40°C to +125°C); no programmable reset delay | Fixed 200 ms reset delay; lacks D-pin programmability and reverse polarity protection to -42 V | Choose when fixed reset timing suffices and board-level reverse polarity protection is already implemented |
Compared with TLV73350PDBVR and TPS7B6950QDCYRQ1, the TLE42754EXUMA1 uniquely combines AEC-Q100 Grade 0 operation, -42 V reverse polarity tolerance, and user-programmable reset delay-making it the only option qualified for under-hood engine and transmission control applications requiring full transient resilience and flexible power sequencing.
Availability
TLE42754EXUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS domain controllers, and electric power steering systems requiring stable component supply under automotive-grade reliability and long-term lifecycle support.
Supply support for TLE42754EXUMA1 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 security solutions, with global manufacturing and R&D infrastructure.
The OPTIREG™ linear product line delivers highly integrated, AEC-Q100-qualified voltage regulators optimized for automotive power domains-emphasizing fault resilience, thermal robustness, and system-level integration to reduce external component count in ECU designs.
FAQ
What is the minimum input voltage required for regulation?
The TLE42754EXUMA1 requires a minimum input voltage of 5.5 V to maintain 5.0 V output regulation at full 450 mA load. Below this threshold, the device enters dropout mode and output voltage drops linearly with input. This specification ensures reliable operation during automotive cold-crank events defined in ISO 16750-2.
Can the reset output (RO) drive a microcontroller's external reset pin directly?
Yes-the RO pin is an open-collector NPN output rated for 25 V maximum and capable of sinking ≥5 mA at VRO ≤ 0.4 V. It requires only an external pull-up resistor (typically 10 kΩ to 5 V or 3.3 V) to interface directly with standard MCU reset inputs without level-shifting or buffering.
Is an input capacitor mandatory for stable operation?
An input capacitor (CI) is strongly recommended but not strictly mandatory for basic regulation. However, Infineon specifies a ceramic capacitor close to pins I and GND to suppress high-frequency line transients and prevent oscillation during load dump or switching noise coupling-critical for AEC-Q100 compliance and EMC robustness.
How does the device handle thermal overload during continuous 450 mA operation?
The TLE42754EXUMA1 incorporates a thermal shutdown circuit that disables the output when junction temperature exceeds ~170°C. Recovery occurs automatically once Tj falls below ~155°C. With proper PCB copper pour (≥300 mm² heatsink area), RthJA is reduced to 42 K/W, enabling sustained 450 mA operation at ambient temperatures up to 100°C.
TLE42754EXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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-SSOP-14-1
TLE42754EXUMA1 FAQ
1.How can I place an order for TLE42754EXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42754EXUMA1 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 TLE42754EXUMA1 reliable?
The price and inventory of TLE42754EXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42754EXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE42754EXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42754EXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42754EXUMA1?
TLE42754EXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42754EXUMA1 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 TLE42754EXUMA1?
For technical support, including TLE42754EXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42754EXUMA1 requirements.
6.How does Aetrix verify that TLE42754EXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE42754EXUMA1 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 TLE42754EXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE42754EXUMA1?
All TLE42754EXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42754EXUMA1, 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 TLE42754EXUMA1 part is unused and in its original packaging.
Return procedure for TLE42754EXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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