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Infineon Technologies TLE4266GHTMA1
- Part No.:
- TLE4266GHTMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
TLE4266GHTMA1.pdf
- Description:
- IC REG LINEAR 5V 120MA SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:1,439
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Product details
Overview
TLE4266GHTMA1 from Infineon is a 5 V low-dropout linear voltage regulator in PG-SOT223-4 package, delivering up to 120 mA output current with ±2% output voltage tolerance and ≤0.5 V dropout at 100 mA. It features inhibit control (low-active), reverse polarity protection, overtemperature shutdown, and operates across -40°C to +150°C junction temperature-designed for automotive body electronics power rails.
For engineers reviewing the TLE4266GHTMA1 datasheet, TLE4266GHTMA1 pinout, TLE4266GHTMA1 application, or TLE4266GHTMA1 equivalent, key selection criteria include input voltage range (5.5–45 V), quiescent current in inhibit mode (<10 µA), PSRR (54 dB @ 100 Hz), load regulation (±40 mV), and AEC-Q100 qualification for automotive use.
Technical Context
The TLE4266GHTMA1 uses a PNP series pass transistor with precision bandgap reference and internal saturation control to prevent oversaturation under varying load conditions. Its feedback loop employs resistor-adjusted voltage division to maintain tight output regulation across wide input and temperature ranges.
Protection functions are fully integrated: thermal shutdown activates at ~150°C junction temperature; reverse polarity protection blocks conduction below -42 V input; short-circuit current limiting holds peak output current near 150 mA without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - stable supply for MCU peripherals, sensors, and CAN transceivers requiring precise 5 V rail. |
| Max Output Current | 120 mA - sufficient for powering multiple low-power automotive ICs (e.g., LIN transceivers, position sensors) from single regulator. |
| Dropout Voltage | 0.25 V (typ.) @ 100 mA - enables operation down to 5.5 V input, supporting cold-crank scenarios in 12 V automotive systems. |
| Quiescent Current (Inhibit) | <10 µA @ Tj ≤ 100°C - minimizes battery drain during vehicle sleep mode, critical for always-on ECU subsystems. |
| PSRR | 54 dB @ 100 Hz - suppresses alternator ripple and switching noise from upstream DC/DC converters, preserving analog sensor accuracy. |
| Operating Temp Range | -40°C to +150°C junction - qualified per AEC-Q100 Grade 0, enabling placement near engine compartments or under-hood ECUs. |
| Input Voltage Range | 5.5 V to 45 V - accommodates load-dump transients (up to 40 V) and start-stop battery fluctuations in modern vehicles. |
Pinout & Package
Package: PG-SOT223-4 - thermally enhanced surface-mount package with exposed thermal pad (pin 4 = GND), optimized for automotive PCB layouts requiring high reliability and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input voltage supply | Connect directly to bulk input capacitor (ceramic); must be decoupled locally to suppress line impedance resonance. |
| 2 (INH) | Inhibit control input | Low-active logic input; pulls output off when ≤0.8 V, reducing total current draw to <10 µA for system-level power gating. |
| 3 (Q) | Regulated output | Delivers 5 V ±2%; requires ≥10 µF output capacitor with ESR ≤10 Ω for stability across full temperature range. |
| 4 (GND) | Power ground | Common return path for input, output, and thermal pad; must be low-inductance connection to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse polarity protection | Withstands -42 V input without damage or latch-up-eliminates need for external series diode in battery-reversed fault scenarios. |
| Thermal shutdown | Turns off output at ~150°C junction temperature and auto-recovers after cooldown-prevents permanent failure during sustained overload. |
| Load regulation | ±40 mV variation from 5–100 mA load-ensures consistent voltage for ADC references and analog signal conditioning circuits. |
| Line regulation | ±30 mV over 6–28 V input range-maintains regulation during battery voltage sag or surge without external compensation. |
Applications
| Body Control Module (BCM) | Door Module Electronics |
|---|---|
Use Scenario: Powering microcontroller, LIN transceiver, and window position sensors in centralized door control unit. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying regulated rail to mixed-signal subsystem; enabled/disabled via vehicle wake-up signal on INH pin. Use Value: Low quiescent current in inhibit mode extends battery life during vehicle sleep; ±2% output tolerance ensures reliable ADC sampling of analog sensor signals. | Use Scenario: Supplying mirror folding motor driver, LED status indicators, and proximity sensor in side mirror assembly. IC Role / Device Role / Timing Role: Local 5 V regulator with reverse polarity and thermal protection-mounted directly on mirror PCB near motor load. Use Value: Withstands reverse battery connection during service; dropout voltage allows operation during cranking (≥5.5 V input); AEC-Q100 qualification ensures 15-year field reliability. |
| Seat Control Unit | Lighting Control Module |
Use Scenario: Providing stable 5 V to seat position memory ICs, heater control logic, and occupancy detection sensors. IC Role / Device Role / Timing Role: Secondary LDO downstream of main DC/DC converter; INH pin synchronized with seat ECU power sequencing. Use Value: Load regulation ±40 mV prevents voltage-induced errors in potentiometer-based position feedback; 150°C thermal limit matches under-seat ambient conditions. | Use Scenario: Powering LED driver ICs and ambient light sensor in interior dome lighting system. IC Role / Device Role / Timing Role: Dedicated 5 V rail generator with fast transient response to support PWM dimming control loops. Use Value: 54 dB PSRR suppresses switching noise from adjacent buck converters, preventing visible LED flicker; RoHS-compliant packaging meets automotive environmental standards. |
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 | 300 mA output, 250 mV dropout @ 300 mA, no inhibit pin, SOT-23-5 package | Lacks automotive qualification and reverse polarity protection; limited to non-safety-critical consumer-grade modules | Select only for cost-sensitive, non-automotive designs where higher current and smaller footprint outweigh missing protections. |
| TPS7B6950QDCYRQ1 | 150 mA output, 300 mV dropout @ 150 mA, integrated enable (active-high), same AEC-Q100 Grade 1 rating | Requires active-high enable logic; lacks reverse polarity protection; slightly lower PSRR (45 dB) | Prefer when system uses active-high control signaling and reverse battery risk is mitigated externally. |
Compared with TLV73350PDBVR and TPS7B6950QDCYRQ1, the TLE4266GHTMA1 uniquely combines AEC-Q100 Grade 0 operation, reverse polarity immunity, and low-inhibit current in a thermally robust SOT223 package-making it optimal for under-hood and safety-critical body electronics where fault resilience is mandatory.
Availability
TLE4266GHTMA1 is available at Aetrix Electronics and suitable for body control modules, door electronics, seat control units, and lighting control modules requiring stable component supply across automotive production lifecycles.
Supply support for TLE4266GHTMA1 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 R&D and manufacturing infrastructure.
The OPTIREG™ Linear product line delivers AEC-Q100-qualified voltage regulators engineered specifically for automotive power distribution-emphasizing fault tolerance, thermal robustness, and long-term reliability in harsh environments.
FAQ
What is the minimum input voltage required for regulation at full load?
The TLE4266GHTMA1 requires a minimum input voltage of 5.5 V to maintain 5 V output regulation at 120 mA load. Below this threshold, dropout occurs-output voltage drops linearly with input. This value accounts for worst-case tolerance, temperature drift, and 100 mV regulation margin specified in the datasheet.
Can the INH pin be left floating in the circuit?
No. The INH pin must be actively driven-either pulled high (≥3.5 V) to enable output or pulled low (≤0.8 V) to disable it. Leaving it floating risks undefined behavior due to internal leakage paths; a 10 kΩ pull-up resistor to input voltage is recommended for default-enable configurations.
Is an external capacitor required on the Q (output) pin, and what are its specifications?
Yes. A minimum 10 µF ceramic or tantalum output capacitor with ESR ≤10 Ω is mandatory for loop stability across -40°C to +150°C. Lower ESR improves transient response; larger capacitance (e.g., 22 µF) further reduces output ripple under dynamic load steps.
Does the TLE4266GHTMA1 support parallel operation for higher current capability?
No. The device lacks current-sharing features such as current-sense outputs or master-slave synchronization. Parallel connection may cause unequal current distribution and thermal imbalance due to output voltage tolerance mismatch (±2%), risking premature thermal shutdown in one unit.
TLE4266GHTMA1 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:
- 120mA
- Current - Quiescent (Iq):
- 400 µA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 54dB (100Hz)
- Control Features:
- Inhibit
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4
TLE4266GHTMA1 FAQ
1.How can I place an order for TLE4266GHTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4266GHTMA1 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 TLE4266GHTMA1 reliable?
The price and inventory of TLE4266GHTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4266GHTMA1 is usually 5 days.
3.What payment methods are accepted for TLE4266GHTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4266GHTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4266GHTMA1?
TLE4266GHTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4266GHTMA1 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 TLE4266GHTMA1?
For technical support, including TLE4266GHTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4266GHTMA1 requirements.
6.How does Aetrix verify that TLE4266GHTMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4266GHTMA1 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 TLE4266GHTMA1 meets industry standards.
7.What is the process for return or replacement of TLE4266GHTMA1?
All TLE4266GHTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4266GHTMA1, 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 TLE4266GHTMA1 part is unused and in its original packaging.
Return procedure for TLE4266GHTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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