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Infineon Technologies TLS115B0LDXUMA1
- Part No.:
- TLS115B0LDXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 10-TFDFN Exposed Pad
- Datasheet:
-
TLS115B0LDXUMA1.pdf
- Description:
- IC REG LIN POS ADJ 150MA TSON-10
- Quantity:
- Payment:
- Shipping:
Inventory:2,428
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Product details
Overview
TLS115B0LDXUMA1 from Infineon Technologies is a monolithic high-precision linear voltage tracking regulator in PG-TSON-10 package, delivering 150 mA output current with ±0.5% tracking accuracy, 250 mV typical dropout at full load, and operation across -16 V to +45 V input range. It serves as an off-board sensor supply in automotive powertrain systems under harsh conditions including reverse polarity and short-circuit faults.
For engineers reviewing the TLS115B0LDXUMA1 datasheet, TLS115B0LDXUMA1 pinout, TLS115B0LDXUMA1 application, or TLS115B0LDXUMA1 equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, automotive-grade protection features, and confirmed alternative options for precision voltage tracking in ECU subsystems.
Technical Context
The TLS115B0LDXUMA1 implements a feedback-controlled tracking architecture where the OUT pin replicates the ADJ reference voltage with <±0.5% error over temperature (-40°C to 150°C) and load (0–150 mA). Its internal PMOS pass element enables ultra-low dropout (250 mV typ. @150 mA) and reverse-polarity protection without external components.
Enable logic is active-high with integrated hysteresis; EN pin accepts rail-to-rail input from -16 V to +45 V. The device integrates thermal shutdown, short-circuit protection (to GND and battery), and soft-start control-no external timing components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 150 mA max - supports off-board sensors and secondary loads without external boost stages |
| Tracking accuracy | ±0.5% - ensures precise replication of reference voltage across temp/load, critical for sensor biasing |
| Dropout voltage | 250 mV typ. @150 mA - enables regulation down to VIN – 0.25 V, extending usable input range in low-VIN transients |
| Input voltage range | -16 V to +45 V - accommodates automotive load-dump and reverse-battery fault conditions without external protection |
| Standby current | 0.1 µA typ. - enables ultra-low-power sleep modes in always-on ECU domains |
| Adjust input range | 2.0 V to 14.0 V - defines valid reference voltage window for accurate tracking; minimum 2.0 V sets lower bound for compatible references |
| Operating junction temp | -40°C to +150°C - qualified per AEC-Q100 Grade 0, supporting under-hood deployment |
Pinout & Package
Package: PG-TSON-10 (3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Tracker output | Delivers regulated output matching ADJ reference; requires local 1 µF ceramic capacitor with ≤5 Ω ESR |
| 2 (N.C.) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines |
| 3 (GND) | Power ground | Main return path; connects to PCB ground plane and exposed thermal pad for thermal/EMI performance |
| 4 (N.C.) | No connect | Internally unconnected; no routing or soldering required |
| 5 (N.C.) | No connect | Internally unconnected; leave unpopulated |
| 6 (ADJ) | Reference input | Accepts 2.0–14.0 V reference; OUT tracks this voltage with ±0.5% accuracy; high-impedance input |
| 7 (N.C.) | No connect | Internally unconnected; avoid routing traces |
| 8 (EN) | Enable control | Active-high logic input; "High" enables regulation, "Low" disables output and reduces current to 0.1 µA |
| 9 (N.C.) | No connect | Internally unconnected; do not tie to any net |
| 10 (IN) | Supply input | Accepts -16 V to +45 V; reverse-polarity protected; requires local 100 nF ceramic decoupling |
Key Features
| Feature | Design Value |
|---|---|
| High-accuracy voltage tracking | ±0.5% tracking error over -40°C to +150°C and 0–150 mA load ensures stable sensor biasing without calibration drift |
| Integrated reverse-polarity protection | Withstands -16 V input without external diode, eliminating BOM cost and forward-drop loss in battery-reverse scenarios |
| Short-circuit protection (to GND & battery) | Auto-limits current during output shorts to either rail, preventing latch-up and enabling safe recovery without system reset |
| Thermal shutdown with hysteresis | Triggers at Tj > 160°C and releases at ~145°C, preventing thermal runaway while avoiding oscillation near trip point |
| Internally controlled soft start | Eliminates inrush current spikes during enable; no external RC network needed for controlled VOUT ramp-up |
Applications
| Automotive Powertrain Sensor Supply | Protected Off-Board Load Switch |
|---|---|
|
Use Scenario: Supplying crankshaft/camshaft position sensors located outside the ECU housing in engine bay environments. IC Role / Device Role / Timing Role: Precision voltage tracker replicating a stable 5 V reference to ensure consistent sensor signal amplitude and ADC linearity. Use Value: ±0.5% tracking accuracy maintains sensor output fidelity across temperature extremes, reducing calibration overhead and improving misfire detection reliability. |
Use Scenario: Enabling/disabling power to external diagnostic modules or actuators connected via long harnesses. IC Role / Device Role / Timing Role: Protected high-side switch with reverse-polarity and short-circuit resilience, controlled via EN pin. Use Value: Integrated protection eliminates need for discrete TVS, reverse-blocking diodes, and current-limiting resistors-reducing board area by >30% vs. discrete solutions. |
| Secondary Voltage Rail in ECU | High-Precision Reference Replication |
|
Use Scenario: Generating a clean, isolated 3.3 V rail from main 5 V or 12 V ECU supply for CAN transceivers or LIN interface ICs. IC Role / Device Role / Timing Role: Low-noise, low-dropout tracking regulator maintaining tight regulation despite input ripple and load transients. Use Value: 250 mV dropout allows operation during cold-crank events down to 5.75 V input while sustaining 3.3 V output, ensuring communication continuity. |
Use Scenario: Replicating a precision bandgap reference (e.g., 2.5 V) to multiple downstream analog circuits requiring matched bias points. IC Role / Device Role / Timing Role: High-impedance, low-drift voltage follower with minimal loading effect on master reference source. Use Value: 0.1 µA standby current and ±0.5% tracking preserve reference integrity across sleep/wake cycles, minimizing offset drift in multi-channel ADC front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision voltage tracking applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV70733PDQNR | Fixed 3.3 V output, no ADJ pin; ±2% accuracy; 150 mA; 200 mV dropout; SOT-563 package | Lacks tracking capability; suitable only for fixed-voltage use cases without reference replication | Select when system uses fixed reference and space-constrained layout favors SOT-563 over TSON-10 |
| TPS7A2025PDQNR | Fixed 2.5 V output; ±1% accuracy; 300 mA; 170 mV dropout; same SOT-563 package | No adjust input; higher current but no voltage tracking function; lower accuracy than TLS115B0LDXUMA1 | Choose for higher-output-current fixed-rail needs where ±1% tolerance is acceptable and ADJ functionality is unnecessary |
Compared with TLV70733PDQNR and TPS7A2025PDQNR, TLS115B0LDXUMA1 uniquely delivers ±0.5% adjustable tracking across 2–14 V with integrated reverse-polarity and dual short-circuit protection-making it the only option qualified for AEC-Q100 Grade 0 off-board sensor supply in automotive powertrain systems.
Availability
TLS115B0LDXUMA1 is available at Aetrix Electronics and suitable for automotive powertrain sensor supply, protected off-board load switching, and secondary voltage rails in ECUs requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for TLS115B0LDXUMA1 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 qualification infrastructure.
TLS115B0LDXUMA1 belongs to the OPTIREG™ linear regulator product line, designed specifically for high-reliability automotive applications demanding precision voltage tracking, wide-input ruggedness, and integrated fault protection under AEC-Q100 Grade 0 conditions.
FAQ
What is the minimum reference voltage required at the ADJ pin?
The TLS115B0LDXUMA1 requires a minimum of 2.0 V at the ADJ pin to maintain specified tracking accuracy and regulation. Below this threshold, output voltage deviates nonlinearly and may fall out of regulation. This value is confirmed in Table 2 (Functional Range) of the official Infineon datasheet Rev. 1.13, where VADJ min is explicitly defined as 2.0 V.
Can TLS115B0LDXUMA1 operate with input voltages below ground?
Yes-TLS115B0LDXUMA1 supports input voltages as low as -16 V relative to GND, enabling operation during reverse-battery fault conditions without external protection circuitry. This capability is validated per absolute maximum ratings (Table 1, P_3.1.1) and is integral to its AEC-Q100 qualification for automotive use.
Is an external capacitor required on the EN pin for noise immunity?
No external capacitor is required on the EN pin. The device incorporates internal hysteresis and filtering; EN accepts direct connection to microcontroller GPIO or system enable rails. If routed near noisy signals, standard PCB layout practices (short trace, ground guard ring) suffice-no additional capacitance is specified or recommended in the datasheet.
Does the exposed thermal pad require solder connection to PCB ground?
Yes-the exposed thermal pad (PG-TSON-10 package) must be soldered to a PCB ground plane to ensure thermal performance and electrical stability. Infineon's datasheet Section 6 and layout recommendations specify connecting the pad to GND with ≥4 thermal vias (0.3 mm diameter) to inner ground layers, directly impacting RthJA and long-term reliability under 150°C junction conditions.
TLS115B0LDXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 10-TFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 45V
- Voltage - Output (Min/Fixed):
- 2V
- Voltage - Output (Max):
- 14V
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 90 µA
- Current - Supply (Max):
- 14 mA
- PSRR:
- 85dB (100Hz)
- Control Features:
- Enable
- 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-TSON-10
TLS115B0LDXUMA1 FAQ
1.How can I place an order for TLS115B0LDXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLS115B0LDXUMA1 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 TLS115B0LDXUMA1 reliable?
The price and inventory of TLS115B0LDXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS115B0LDXUMA1 is usually 5 days.
3.What payment methods are accepted for TLS115B0LDXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS115B0LDXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLS115B0LDXUMA1?
TLS115B0LDXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLS115B0LDXUMA1 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 TLS115B0LDXUMA1?
For technical support, including TLS115B0LDXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS115B0LDXUMA1 requirements.
6.How does Aetrix verify that TLS115B0LDXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLS115B0LDXUMA1 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 TLS115B0LDXUMA1 meets industry standards.
7.What is the process for return or replacement of TLS115B0LDXUMA1?
All TLS115B0LDXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS115B0LDXUMA1, 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 TLS115B0LDXUMA1 part is unused and in its original packaging.
Return procedure for TLS115B0LDXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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