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Infineon Technologies TLE4274GSV25HTMA1
- Part No.:
- TLE4274GSV25HTMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
TLE4274GSV25HTMA1.pdf
- Description:
- IC REG LIN 2.5V 400MA SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,993
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Product details
Overview
TLE4274GSV25HTMA1 from Infineon Technologies is a fixed-output linear voltage regulator delivering 2.5 V ±4% at up to 400 mA, designed for automotive power supply rails. It operates from 4.7 V to 40 V input, features reverse-polarity and short-circuit protection, and is qualified per AEC-Q100 with RoHS compliance. Used in engine control units and body electronics where stable low-noise 2.5 V biasing is required.
For engineers reviewing the TLE4274GSV25HTMA1 datasheet, TLE4274GSV25HTMA1 pinout, TLE4274GSV25HTMA1 application, or TLE4274GSV25HTMA1 equivalent, key selection criteria include dropout voltage (1.0–2.0 V @ 300 mA), thermal resistance (RthJA = 100 K/W in PG-SOT223-4), junction temperature range (−40 °C to +150 °C), and output capacitor stability requirements (CQ ≥ 10 µF, ESR ≤ 2.5 Ω).
Technical Context
The TLE4274GSV25HTMA1 employs a bandgap reference and control amplifier to regulate output voltage via a series pass transistor with saturation control that prevents oversaturation under load. Internal protection circuits actively monitor temperature, current, and polarity to disable the output during fault conditions.
It uses a single-stage error amplifier architecture with integrated thermal shutdown and foldback current limiting. The device requires external input (CI) and output (CQ) capacitors-specifically 100 nF ceramic at input and ≥10 µF electrolytic/tantalum at output with ESR ≤ 2.5 Ω-to ensure stability across −40 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±4% (2.4–2.6 V); maintains precision over full load and temperature range |
| Max Output Current | 400 mA continuous; internally limited to 600 mA peak during overload |
| Input Voltage Range | 4.7 V to 40 V; supports wide automotive battery transients including load dump |
| Dropout Voltage | 1.0–2.0 V @ 300 mA; defines minimum headroom needed for regulation |
| Quiescent Current | 8–30 mA @ 250–400 mA load; enables low-power operation in always-on modules |
| Thermal Resistance | RthJA = 100 K/W (PG-SOT223-4, 1 cm² copper); dictates heatsinking requirement |
| PSRR | 60 dB @ 100 Hz; suppresses ripple from upstream switching converters |
Pinout & Package
Package: PG-SOT223-4 (4-pin SOT-223 variant with exposed thermal pad connected to Pin 4/GND). Pin 4 serves as both ground terminal and thermal interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Unregulated DC input; must be decoupled directly at IC with ≥100 nF ceramic capacitor |
| 2, 4 (GND) | Ground / Thermal Pad | Common return and primary thermal path; Pin 4 is internally connected to heatsink area |
| 3 (Q) | Output | Regulated 2.5 V output; requires ≥10 µF output capacitor with ESR ≤ 2.5 Ω for stability |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Polarity Protection | Withstands −42 V input without damage; eliminates need for external blocking diode |
| Short-Circuit Proof Operation | Survives indefinite output short with automatic current foldback and thermal shutdown |
| AEC-Q100 Qualified | Qualified for automotive Grade 1 (−40 °C to +125 °C ambient) and extended junction range (−40 °C to +150 °C) |
| Green Product Compliance | RoHS-compliant, halogen-free, and lead-free per JEDEC J-STD-609A Class 1 |
| Low Quiescent Current at Light Load | 100 µA typical @ 1 mA output; minimizes standby power in always-on ECUs |
Applications
| Engine Control Unit (ECU) Sensor Biasing | Body Control Module (BCM) Microcontroller Core Supply |
|---|---|
Use Scenario: Providing stable 2.5 V reference to analog front-end of knock sensor interface circuitry. IC Role / Device Role / Timing Role: Low-noise linear regulator supplying precision bias voltage to ADC reference and op-amp rails. Use Value: Maintains <±4% output accuracy across −40 °C to +150 °C junction temperature, ensuring consistent sensor signal conditioning. | Use Scenario: Powering 2.5 V I/O domain of automotive microcontroller in BCM with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Primary low-dropout regulator for logic-level rail, co-located with MCU on same PCB region. Use Value: Delivers 400 mA with only 1.0 V dropout at 300 mA, enabling operation down to 3.5 V battery during cranking. |
| Advanced Driver Assistance System (ADAS) Camera Module | Electric Power Steering (EPS) Motor Control ASIC Supply |
Use Scenario: Generating clean 2.5 V supply for image signal processor (ISP) analog blocks in rear-view camera. IC Role / Device Role / Timing Role: Post-regulator after buck converter; filters switching noise before sensitive analog imaging circuitry. Use Value: 60 dB PSRR at 100 Hz suppresses ripple from upstream 2 MHz DC/DC, reducing image noise floor. | Use Scenario: Supplying 2.5 V auxiliary rail to gate driver and current-sense amplifier in EPS motor control board. IC Role / Device Role / Timing Role: Fault-tolerant local regulator with reverse-polarity and short-circuit immunity for safety-critical subsystem. Use Value: Withstands −42 V reverse battery connection and recovers automatically after short-circuit events without latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73325PDBVR | Lower IQ (4 µA typ), lower max current (300 mA), smaller SOT-23-5 package, no reverse-polarity protection | Not AEC-Q100 qualified; suitable for non-automotive industrial sensors | Select if ultra-low quiescent current and space-constrained layout outweigh automotive qualification needs |
| NCV4274AST25T3G | Same 2.5 V output, 400 mA rating, AEC-Q100 Grade 1, but TO-252-3 package (higher RthJC = 4 K/W) | Better thermal performance in high-power-density layouts due to DPAK thermal pad | Select when board-level thermal management favors surface-mount DPAK over SOT-223 footprint |
Compared with TLV73325PDBVR, TLE4274GSV25HTMA1 provides automotive-grade fault resilience and higher current capability; compared with NCV4274AST25T3G, it offers identical electrical specs but in a smaller SOT-223-4 package with integrated GND thermal pad-ideal for cost-sensitive, space-constrained ECU designs.
Availability
TLE4274GSV25HTMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering applications requiring stable component supply across automotive production lifecycles.
Supply support for TLE4274GSV25HTMA1 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 TLE4274 product line delivers AEC-Q100-qualified linear regulators optimized for harsh automotive environments-designed specifically for reliable, fault-tolerant power supply in ECUs, sensors, and safety-critical subsystems.
FAQ
What is the minimum input voltage required for regulation at full load?
The TLE4274GSV25HTMA1 requires a minimum input voltage of 4.7 V to maintain 2.5 V output regulation at any load up to 400 mA. Below this threshold, dropout behavior occurs-output voltage drops linearly with input. This limit ensures stable operation during cold-crank battery conditions in automotive systems.
Can this regulator be used without an output capacitor?
No. An output capacitor of ≥10 µF with ESR ≤ 2.5 Ω is mandatory for closed-loop stability across the full operating temperature range (−40 °C to +150 °C). Omitting it causes oscillation and unregulated output, as confirmed in Figure 4 and Table 4 of the official datasheet Rev. 2.3.
Does the device shut down permanently after overtemperature activation?
No. The TLE4274GSV25HTMA1 implements auto-recovery thermal shutdown: output disables when junction temperature exceeds ~170 °C, then resumes normal operation once Tj falls below ~150 °C. This hysteresis prevents cycling and supports transient overload handling in real-world automotive duty cycles.
Is Pin 4 electrically isolated from other pins in the PG-SOT223-4 package?
No. Pin 4 is internally bonded to the GND terminal and the exposed thermal pad. It is not isolated-it must be connected to system ground and serves as the primary thermal conduction path. PCB layout must assign Pin 4 to a dedicated ground plane with ≥1 cm² copper area for optimal RthJA performance.
TLE4274GSV25HTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 2V @ 300mA
- Current - Output:
- 400mA
- Current - Quiescent (Iq):
- 220 µA
- Current - Supply (Max):
- 30 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, 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-SOT223-4
TLE4274GSV25HTMA1 FAQ
1.How can I place an order for TLE4274GSV25HTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4274GSV25HTMA1 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 TLE4274GSV25HTMA1 reliable?
The price and inventory of TLE4274GSV25HTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4274GSV25HTMA1 is usually 5 days.
3.What payment methods are accepted for TLE4274GSV25HTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4274GSV25HTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4274GSV25HTMA1?
TLE4274GSV25HTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4274GSV25HTMA1 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 TLE4274GSV25HTMA1?
For technical support, including TLE4274GSV25HTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4274GSV25HTMA1 requirements.
6.How does Aetrix verify that TLE4274GSV25HTMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4274GSV25HTMA1 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 TLE4274GSV25HTMA1 meets industry standards.
7.What is the process for return or replacement of TLE4274GSV25HTMA1?
All TLE4274GSV25HTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4274GSV25HTMA1, 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 TLE4274GSV25HTMA1 part is unused and in its original packaging.
Return procedure for TLE4274GSV25HTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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