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Infineon Technologies TLE4252GATMA1
- Part No.:
- TLE4252GATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
TLE4252GATMA1.pdf
- Description:
- IC REG LIN POS ADJ 250MA TO263-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,515
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Product details
Overview
TLE4252GATMA1 from Infineon Technologies is a monolithic adjustable positive linear voltage regulator with 250 mA output current capability, integrated short-circuit and thermal shutdown protection, and a wide input voltage range of 5.5 V to 40 V. It operates in automotive-grade temperature range (−40 °C to +150 °C) and is designed for post-regulation in 12 V vehicle electrical systems.
For engineers reviewing the TLE4252GATMA1 datasheet, TLE4252GATMA1 pinout, TLE4252GATMA1 application, or TLE4252GATMA1 equivalent, key selection criteria include adjustable output voltage (1.25 V to 36 V), low quiescent current (120 µA typ.), dropout voltage (0.55 V at 250 mA), and AEC-Q100 qualification for automotive use.
Technical Context
The TLE4252GATMA1 implements a bandgap reference-based error amplifier driving an N-channel DMOS pass transistor. Its feedback loop uses external resistors to set output voltage, enabling precise regulation across load and line variations.
It integrates overtemperature shutdown with hysteresis (175 °C trip, 150 °C restart) and foldback current limiting during short-circuit events. The device supports stable operation with ceramic or tantalum output capacitors ≥1 µF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 250 mA max - sufficient to power microcontrollers, sensors, and CAN transceivers in body control modules |
| Input Voltage Range | 5.5 V to 40 V - compatible with 12 V automotive battery systems including load dump transients |
| Output Voltage Range | 1.25 V to 36 V - adjustable via external resistor divider for flexible subsystem rail generation |
| Dropout Voltage | 0.55 V at 250 mA - enables regulation down to ~6.05 V input when delivering 3.3 V output |
| Quiescent Current | 120 µA typ. - minimizes standby power loss in always-on vehicle networks |
| Operating Temperature | −40 °C to +150 °C - qualified per AEC-Q100 Grade 1 for under-hood applications |
Pinout & Package
Supplied in TO-263-5 (D²PAK) package with exposed thermal pad for enhanced heat dissipation in high-ambient automotive environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts unregulated 12 V system rail; must be decoupled near pin with ≥1 µF capacitor |
| GND | Power ground reference | Common return path for input, output, and feedback circuits; connects to thermal pad |
| ADJ | Feedback reference node | Connects to resistor divider midpoint; sets output voltage via VREF = 1.25 V |
| OUT | Regulated output terminal | Delivers stabilized voltage; requires ≥1 µF output capacitance for stability |
| NC | No connect | Internally unused pin; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Integrated thermal shutdown | Protects against sustained overload by disabling output above 175 °C, auto-recovering at 150 °C |
| Short-circuit protection | Current foldback limits power dissipation during output-to-ground faults |
| AEC-Q100 qualified | Validated for automotive reliability: temperature cycling, humidity, and ESD robustness |
| Low dropout operation | Enables efficient regulation even with marginal input headroom (e.g., cold-crank conditions) |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Auxiliary Rail |
|---|---|
Use Scenario: Powering LIN transceivers, door lock actuators, and interior lighting drivers in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Post-regulator converting 12 V battery rail to stable 5 V or 3.3 V for digital logic and interface ICs. Use Value: Maintains regulated output during cranking dips (down to 6 V) and load dump spikes (up to 40 V), ensuring subsystem uptime. | Use Scenario: Supplying auxiliary 5 V rail for sensor signal conditioning circuitry and non-critical MCU peripherals in engine management systems. IC Role / Device Role / Timing Role: Local low-noise linear regulator decoupled from main ECU switching supply. Use Value: Reduces conducted noise on analog sensor paths, improving ADC accuracy for oxygen and knock sensors. |
| Instrument Cluster Display | Heating, Ventilation & AC (HVAC) Control |
Use Scenario: Providing clean 3.3 V supply to TFT display controller and touch interface ASIC in driver information displays. IC Role / Device Role / Timing Role: Low-quiescent-current linear regulator supporting always-on display memory retention. Use Value: Draws only 120 µA in standby, extending battery life during vehicle sleep mode without compromising wake-up responsiveness. | Use Scenario: Powering HVAC blend door position sensors, fan speed controllers, and ambient temperature monitoring circuitry. IC Role / Device Role / Timing Role: High-temperature-stable regulator operating continuously in hot dashboard environments. Use Value: Sustains regulation up to +150 °C ambient, eliminating thermal derating in confined HVAC control housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117LV33DCYR | Fixed 3.3 V output; lower max input (16 V); no AEC-Q100 qualification | Limited to low-voltage, non-automotive systems with stable input rails | Select only for cost-sensitive industrial or consumer designs where automotive qualification is unnecessary |
| LM2940CT-5.0 | Fixed 5.0 V output; higher dropout (0.6 V at 250 mA); AEC-Q100 Grade 2 (−40 °C to +125 °C) | Suitable for less thermally demanding under-dash locations but not under-hood | Choose when fixed 5 V output suffices and ambient temperature stays below 125 °C |
Compared with TLV1117LV33DCYR and LM2940CT-5.0, the TLE4252GATMA1 uniquely combines adjustable output, 40 V input tolerance, and full AEC-Q100 Grade 1 qualification-enabling single-part deployment across diverse automotive subsystems requiring design flexibility and extreme environment resilience.
Availability
TLE4252GATMA1 is available at Aetrix Electronics and suitable for body control modules, instrument clusters, and HVAC control units requiring stable component supply across extended temperature and voltage transients.
Supply support for TLE4252GATMA1 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.
The TLE4252GATMA1 belongs to Infineon's TLE family of automotive linear regulators, engineered specifically for robust post-regulation in 12 V vehicle networks with stringent EMC, thermal, and reliability requirements.
FAQ
What is the minimum input voltage required for regulation at 5 V output?
The TLE4252GATMA1 requires at least 5.55 V input to maintain 5 V output at full 250 mA load, based on its 0.55 V typical dropout voltage. Below this, regulation is lost and output follows input minus dropout. Input must also exceed the 5.5 V absolute minimum specified in the datasheet to avoid undefined behavior.
Can the TLE4252GATMA1 replace a fixed-output LDO in an existing design?
Yes, but only if the existing fixed-output LDO's voltage matches the TLE4252GATMA1's externally set output. The TLE4252GATMA1 requires two external resistors (R1, R2) to configure output voltage using VOUT = 1.25 V × (1 + R1/R2). No internal feedback network exists-replacement necessitates board-level resistor changes.
Is an input capacitor mandatory, and what value is recommended?
Yes-an input capacitor is mandatory for stability and transient suppression. Infineon specifies a minimum 1 µF ceramic or tantalum capacitor placed within 5 mm of the IN and GND pins. For load dump immunity, a 10 µF aluminum electrolytic in parallel is recommended to absorb high-energy transients without exceeding the 40 V absolute maximum rating.
Does the NC pin require PCB routing or thermal connection?
No-the NC (No Connect) pin on the TO-263-5 package is internally unconnected and must remain electrically floating. It should not be soldered to any trace or plane. However, the exposed thermal pad beneath the package must be soldered to a large copper pour for thermal performance; this pad is connected to GND and serves as the primary heat path.
TLE4252GATMA1 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:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- Tracking
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 200mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 25 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO263-5-1
TLE4252GATMA1 FAQ
1.How can I place an order for TLE4252GATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4252GATMA1 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 TLE4252GATMA1 reliable?
The price and inventory of TLE4252GATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4252GATMA1 is usually 5 days.
3.What payment methods are accepted for TLE4252GATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4252GATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4252GATMA1?
TLE4252GATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4252GATMA1 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 TLE4252GATMA1?
For technical support, including TLE4252GATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4252GATMA1 requirements.
6.How does Aetrix verify that TLE4252GATMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4252GATMA1 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 TLE4252GATMA1 meets industry standards.
7.What is the process for return or replacement of TLE4252GATMA1?
All TLE4252GATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4252GATMA1, 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 TLE4252GATMA1 part is unused and in its original packaging.
Return procedure for TLE4252GATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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