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Infineon Technologies TLE4264GHTSA1
- Part No.:
- TLE4264GHTSA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
TLE4264GHTSA1.pdf
- Description:
- IC REG LINEAR 5V 100MA SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:4,376
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Product details
Overview
TLE4264GHTSA1 from Infineon Technologies is a 5-V fixed-output, low-dropout linear voltage regulator in PG-SOT223-4 package, designed for automotive power supply rails. It accepts 5.5–45 V input, delivers ≥120 mA output current with ±2% output voltage tolerance, and integrates overtemperature shutdown, short-circuit protection, and reverse-polarity immunity.
For engineers reviewing the TLE4264GHTSA1 datasheet, TLE4264GHTSA1 pinout, TLE4264GHTSA1 application, or TLE4264GHTSA1 equivalent, key selection criteria include dropout voltage (≤0.5 V at 100 mA), quiescent current (9–15 mA at full load), PSRR (54 dB @ 100 Hz), thermal resistance (Rthj-a = 85 K/W), and AEC-Q100 qualification for under-hood use.
Technical Context
The TLE4264GHTSA1 uses a bandgap-referenced control amplifier driving a series pass transistor with saturation control to prevent over-saturation under high load. Its internal temperature sensor disables output above 150 °C junction temperature, and reverse-polarity protection blocks conduction when input is inverted.
Stability requires ≥10 µF output capacitor with ESR ≤10 Ω and an input capacitor damped by ~1 Ω series resistor. The regulator maintains regulation across -40 °C to +125 °C ambient, with drop voltage defined as VI − VQ at 100 mV output deviation from nominal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% (ensures stable MCU/ASIC core logic supply within automotive voltage tolerances) |
| Input Voltage Range | 5.5 V to 45 V (supports 12 V and 24 V vehicle systems including cold-crank and load-dump transients) |
| Max Output Current | ≥120 mA (sufficient for powering small microcontrollers, sensors, and CAN transceivers) |
| Dropout Voltage | 0.25–0.5 V at 100 mA (enables operation down to 5.5 V input during cranking) |
| Quiescent Current | 9–15 mA at 100 mA load (minimizes standby power loss in always-on modules) |
| PSRR | 54 dB @ 100 Hz (attenuates alternator ripple before sensitive analog circuitry) |
| Thermal Resistance | Rthj-a = 85 K/W (requires PCB copper pour for sustained 120 mA at >85 °C ambient) |
Pinout & Package
PG-SOT223-4 package with exposed thermal pad (pin 4 connected to GND); thermally optimized for PCB mounting on 300 mm² copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VI) | Input voltage terminal | Accepts 5.5–45 V; must be decoupled directly to GND with ceramic capacitor |
| 2 & 4 (GND) | Ground reference and thermal path | Both pins are internally connected to substrate; pin 4 is exposed thermal pad tied to GND plane |
| 3 (VQ) | Regulated 5-V output | Requires ≥10 µF output capacitor with ESR ≤10 Ω for loop stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Rated for automotive Grade 1 (-40 °C to +125 °C junction), enabling use in engine control and body electronics |
| Reverse polarity protection | Blocks conduction when VI is negative relative to GND - eliminates need for external series diode |
| Overtemperature shutdown | Disables output above 150 °C junction; auto-recovers after cooldown - prevents thermal runaway |
| Short-circuit proof design | Internally limits output current to safe level without latch-up or damage during sustained fault |
| Green product (RoHS) | Lead-free and halogen-free per EU Directive 2011/65/EU - compliant for global automotive production |
Applications
| Engine Control Unit (ECU) Power Supply | Body Control Module (BCM) Sensor Rail |
|---|---|
Use Scenario: Powers 5-V microcontroller, EEPROM, and analog front-end in gasoline/diesel engine management systems. IC Role / Device Role / Timing Role: Primary 5-V LDO supplying critical logic and ADC reference voltage. Use Value: Maintains regulation during 5.5 V cold-crank events and rejects alternator ripple (54 dB), ensuring ADC accuracy and flash programming integrity. | Use Scenario: Supplies 5-V rail to door module sensors (window position, lock status) and LIN transceivers. IC Role / Device Role / Timing Role: Local point-of-load regulator with reverse-polarity immunity for battery-connected modules. Use Value: Survives jump-start misconnections and load-dump transients up to 45 V, eliminating field failures from wiring errors. |
| CAN Transceiver Bias Supply | Automotive Lighting Control |
Use Scenario: Provides isolated 5-V bias to high-speed CAN FD transceivers in gateway ECUs. IC Role / Device Role / Timing Role: Low-noise, stable supply for CAN bus physical layer ICs requiring precise VCC. Use Value: PSRR of 54 dB suppresses common-mode noise on shared 12 V bus, reducing bit error rate in noisy chassis environments. | Use Scenario: Powers LED driver ICs and microcontrollers in adaptive headlight control units. IC Role / Device Role / Timing Role: Secondary regulated rail derived from main 12 V battery, tolerant of PWM dimming-induced line noise. Use Value: Dropout ≤0.5 V enables continuous operation during 6 V cranking pulses, preventing headlight flicker or reset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 5-V automotive LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | Lower IQ (50 µA typ), lower max current (300 mA), no AEC-Q100 rating, SOT-23-5 package | Targeted at non-automotive industrial or consumer systems with tighter quiescent budget | Select only if AEC-Q100 is not required and thermal constraints allow smaller package |
| TPS7B6750QPWPRQ1 | Higher max current (500 mA), integrated enable pin, Rthj-a = 60 K/W, same AEC-Q100 Grade 1 | Supports higher-power loads like multi-channel sensor interfaces or dual-core MCUs | Prefer when >120 mA output or active enable control is needed; requires larger PCB layout margin |
Compared with TLV73350PDBVR, TLE4264GHTSA1 provides guaranteed automotive qualification and robustness against reverse polarity, while TPS7B6750QPWPRQ1 offers higher current and better thermal performance but at increased cost and board space.
Availability
TLE4264GHTSA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, CAN gateway designs, and lighting control systems requiring stable component supply with automotive-grade reliability and long-term lifecycle support.
Supply support for TLE4264GHTSA1 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 TLE family targets automotive power supply applications, delivering robust, AEC-Q100-compliant linear regulators for safety-critical and harsh-environment subsystems such as engine management and chassis control.
FAQ
What is the minimum input voltage required for regulation at full load?
The TLE4264GHTSA1 requires a minimum input voltage of 5.5 V to maintain 5.0 V output regulation at up to 120 mA load. Below this, dropout occurs - for example, at 100 mA load, VI must exceed 5.5 V to sustain VQ ≥ 4.9 V per datasheet Table 3.
Can the TLE4264GHTSA1 be used without an input capacitor?
No - the datasheet mandates an input capacitor (Ci) directly at pins 1 and 2/4 to compensate for line inductance and prevent oscillation. Omitting Ci risks instability and potential damage during transients; a ~1 Ω damping resistor in series is recommended for robustness.
Is thermal derating required above 85 °C ambient?
Yes - with Rthj-a = 85 K/W, junction temperature rises ~8.5 °C per 100 mA at 25 °C ambient. At 85 °C ambient and 120 mA load, Tj ≈ 187 °C - exceeding 150 °C limit. Derating to ≤80 mA or adding copper pour is mandatory above 85 °C ambient.
Does the device support adjustable output voltage via external resistors?
No - the TLE4264GHTSA1 is a fixed 5.0 V output regulator. Its internal bandgap reference and feedback divider are trimmed and unalterable; no external resistor network can modify VQ. For adjustable output, consider Infineon's TLE4274 series.
TLE4264GHTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 400 µA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 54dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4
TLE4264GHTSA1 FAQ
1.How can I place an order for TLE4264GHTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4264GHTSA1 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 TLE4264GHTSA1 reliable?
The price and inventory of TLE4264GHTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4264GHTSA1 is usually 5 days.
3.What payment methods are accepted for TLE4264GHTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4264GHTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4264GHTSA1?
TLE4264GHTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4264GHTSA1 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 TLE4264GHTSA1?
For technical support, including TLE4264GHTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4264GHTSA1 requirements.
6.How does Aetrix verify that TLE4264GHTSA1 is sourced from the original manufacturer or authorized distributors?
All TLE4264GHTSA1 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 TLE4264GHTSA1 meets industry standards.
7.What is the process for return or replacement of TLE4264GHTSA1?
All TLE4264GHTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4264GHTSA1, 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 TLE4264GHTSA1 part is unused and in its original packaging.
Return procedure for TLE4264GHTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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