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Infineon Technologies TLE42642GHTSA2
- Part No.:
- TLE42642GHTSA2
- Manufacturer:
- Infineon Technologies
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
TLE42642GHTSA2.pdf
- Description:
- IC REG LINEAR 5V 150MA SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,582
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Product details
Overview
TLE42642GHTSA2 from Infineon is a monolithic 5 V low-drop fixed linear voltage regulator in PG-SOT223-4 package, delivering up to 150 mA output current with ±3% output voltage tolerance (±2% up to 50 mA), 40 µA quiescent current, and operation from 5.5 V to 45 V input across −40°C to 150°C junction temperature - designed for microprocessor power supply in automotive control units.
For engineers reviewing the TLE42642GHTSA2 datasheet, TLE42642GHTSA2 pinout, TLE42642GHTSA2 application, or TLE42642GHTSA2 equivalent, key selection criteria include dropout voltage at 100 mA (0.22 V typ), PSRR of 68 dB at 100 Hz, thermal protection, reverse-polarity immunity, and AEC-Q100 qualification for under-hood electronics.
Technical Context
The TLE42642GHTSA2 implements a bandgap-referenced control loop comparing a divided output voltage against a 2.5 V internal reference to regulate 5 V output. Saturation control prevents over-saturation of the series pass transistor under high load.
It integrates overtemperature shutdown, short-circuit current limiting (150–500 mA), reverse-polarity protection, and operates with input as low as 5.5 V - enabling stable regulation even during cold-crank automotive transients down to 5.5 V while maintaining ≤0.5 V dropout at full 150 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | 5.0 V ±3% (±2% up to 50 mA load) - ensures MCU core logic compatibility across wide temperature and line conditions |
| Max output current | 150 mA continuous - sufficient for automotive sensors, CAN transceivers, and small microcontrollers |
| Quiescent current | 40 µA typ (≤70 µA max at Tj ≤85°C) - enables always-on systems with ultra-low standby power |
| Dropout voltage | 0.22 V typ at 100 mA - allows regulation from 5.5 V input during automotive cold-crank events |
| PSRR | 68 dB at 100 Hz - suppresses alternator ripple and switching noise on battery-supplied rails |
| Operating temp | −40°C to +150°C junction - qualified for engine compartment and transmission control module placement |
| Input voltage range | 5.5 V to 45 V - covers 12 V and 24 V automotive systems including load-dump transients |
Pinout & Package
Package: PG-SOT223-4 - thermally enhanced surface-mount package with exposed thermal pad (pin 4), footprint optimized for PCB heat spreading on 300 mm² copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input voltage | Connects to unregulated battery rail; requires local 100 nF ceramic decoupling capacitor |
| 2, 4 (GND) | Ground | Pin 2 and pin 4 are both ground terminals; pin 4 is thermal pad tied to PCB ground plane for heat dissipation |
| 3 (Q) | Regulated 5 V output | Supplies downstream circuitry; requires ≥10 µF output capacitor with ESR ≤4 Ω for loop stability |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Qualified to Grade 0 (−40°C to +150°C) for safety-critical automotive ECUs |
| Reverse polarity protection | Withstands −42 V input without damage - eliminates need for external series diode |
| SOA current derating | Automatically reduces output current above 25 V input to prevent thermal runaway |
| Low ESR capacitor support | Stable with MLCC or tantalum output capacitors (≥10 µF, ESR ≤4 Ω) |
| Integrated protection | Thermal shutdown, short-circuit current limiting, and overload foldback - no external components required |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Sensor Supply |
|---|---|
Use Scenario: Powering LIN transceivers, door lock actuators, and ambient light sensors in vehicle body networks. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying mixed-signal peripherals with low-noise, transient-tolerant regulation. Use Value: 40 µA quiescent current minimizes battery drain during vehicle sleep mode; reverse-polarity immunity avoids field failures from incorrect battery jump-starts. | Use Scenario: Providing stable 5 V bias to oxygen sensors, knock sensors, and crankshaft position sensors. IC Role / Device Role / Timing Role: Precision analog supply rail isolated from noisy engine harness transients. Use Value: 68 dB PSRR at 100 Hz rejects alternator ripple; ±2% accuracy up to 50 mA ensures sensor ADC reference stability. |
| Transmission Control Module (TCM) | Advanced Driver Assistance Systems (ADAS) Camera Module |
Use Scenario: Regulating power for solenoid drivers and gear-position Hall sensors in automatic transmissions. IC Role / Device Role / Timing Role: High-reliability 5 V supply operating continuously at 150°C junction temperature near gearbox. Use Value: 150°C max junction rating and SOA derating above 25 V enable direct mounting on transmission control boards without heatsinks. | Use Scenario: Powering image signal processors and CMOS image sensors in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Low-noise, fast-transient-response LDO for analog pixel supply and digital core logic. Use Value: 0.22 V dropout at 100 mA allows operation during 12 V battery sag to 5.5 V; AEC-Q100 Grade 0 supports camera placement in hot roof locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-drop automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA output, 50 µA IQ, SOT-23-5 package, not AEC-Q100 qualified | Targeted at industrial or consumer portable systems - lacks automotive thermal and reliability validation | Select only for non-automotive designs where AEC-Q100 is not required and higher current is needed |
| TLE42744GVT | 400 mA output, 70 µA IQ, same PG-SOT223-4 package, AEC-Q100 Grade 0 | Higher current capability with identical pinout and protection features - suitable for upgraded load requirements | Drop-in replacement when >150 mA output or improved thermal margin is required |
Compared with TLV73350PDBVR, TLE42642GHTSA2 provides guaranteed automotive qualification and lower quiescent current; compared with TLE42744GVT, it offers reduced IQ (40 µA vs. 70 µA) at the cost of 250 mA lower output current - optimal for always-on, low-power ECU subsystems.
Availability
TLE42642GHTSA2 is available at Aetrix Electronics and suitable for automotive body control modules, engine management systems, and ADAS camera power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TLE42642GHTSA2 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 industrial control solutions, with global manufacturing and automotive qualification infrastructure.
The OPTIREG™linear product line delivers robust, AEC-Q100-qualified linear regulators engineered specifically for harsh automotive environments - emphasizing low IQ, thermal resilience, and integrated fault protection.
FAQ
What is the minimum input voltage required for regulation?
The TLE42642GHTSA2 requires a minimum input voltage of 5.5 V to maintain regulated 5 V output. Below this threshold, the device enters dropout mode and output voltage follows input minus dropout voltage. This specification enables reliable operation during automotive cold-crank events where battery voltage dips to 5.5 V.
Can this regulator be used without an output capacitor?
No - the TLE42642GHTSA2 requires a minimum 10 µF output capacitor with ESR ≤4 Ω for control-loop stability. Omitting it causes oscillation and potential malfunction. Tantalum or multilayer ceramic capacitors meeting these specs are recommended per Infineon's application circuit guidance.
Is thermal derating required when using the PG-SOT223-4 package on standard FR-4?
Yes - with no heatsink, Rthj-a is 164 K/W. At 150 mA and 45 V input, power dissipation reaches ~6 W, raising junction temperature beyond 150°C. Use ≥300 mm² copper pour under pin 4 (GND thermal pad) to reduce Rthj-a to 81 K/W and ensure safe operation within spec.
Does the device support adjustable output voltage via external resistors?
No - the TLE42642GHTSA2 is a fixed 5 V output regulator with internal resistor divider. It lacks feedback (FB) or adjust (ADJ) pins. For adjustable output, consider Infineon's TLE4254 or TLE4274 series, which provide external resistor programming of VOUT.
TLE42642GHTSA2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- 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):
- 45V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 100mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 60 µA
- Current - Supply (Max):
- 4 mA
- PSRR:
- 68dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4
TLE42642GHTSA2 FAQ
1.How can I place an order for TLE42642GHTSA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE42642GHTSA2 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 TLE42642GHTSA2 reliable?
The price and inventory of TLE42642GHTSA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE42642GHTSA2 is usually 5 days.
3.What payment methods are accepted for TLE42642GHTSA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE42642GHTSA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE42642GHTSA2?
TLE42642GHTSA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE42642GHTSA2 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 TLE42642GHTSA2?
For technical support, including TLE42642GHTSA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE42642GHTSA2 requirements.
6.How does Aetrix verify that TLE42642GHTSA2 is sourced from the original manufacturer or authorized distributors?
All TLE42642GHTSA2 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 TLE42642GHTSA2 meets industry standards.
7.What is the process for return or replacement of TLE42642GHTSA2?
All TLE42642GHTSA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE42642GHTSA2, 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 TLE42642GHTSA2 part is unused and in its original packaging.
Return procedure for TLE42642GHTSA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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