TLS115D0LDXUMA1 - 150mA Tracking LDO, 2V Adj, AEC-Q100 | Infineon
MPN: TLS115D0LDXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.18 | $2.18 |
| 10 | $1.94 | $19.40 |
| 100 | $1.62 | $162.00 |
| 500 | $1.38 | $690.00 |
| 1,000 | $1.21 | $1,210.00 |
Drop-in alternatives for TLS115D0LDXUMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesTLS115D0LDXUMA1 Maximum Ratings & Electrical Characteristics
| Output Type | Adjustable (Tracking) |
| Output Voltage | 2.0 V (tracking ratio set by external resistors) |
| Maximum Output Current | 150 mA |
| Number of Outputs | 1 |
| Dropout Voltage | 200 mV (typical, at 150 mA) |
| Enable Pin | Yes |
| Power Good Output | Yes |
| Reverse Polarity Protection | Yes (integrated) |
| Operating Temperature | -40C to +125C (automotive grade) |
| Package | PG-TSON-10 (TSON-10 exposed pad) |
| Mounting Type | Surface Mount |
| Automotive Qualification | AEC-Q100 |
| RoHS Status | Compliant |
| Series | OPTIREG Linear |
TLS115D0LDXUMA1 Pin Configuration
| Pin 1 | VIN β Input voltage supply |
| Pin 2 | GND β Ground |
| Pin 3 | ADJ β Adjust / tracking reference input |
| Pin 4 | EN β Enable (active high) |
| Pin 5 | NC β Not connected |
| Pin 6 | NC β Not connected |
| Pin 7 | OUT β Regulated output voltage |
| Pin 8 | PG β Power Good output |
| Pin 9 | NC β Not connected |
| Pin 10 | EP β Exposed thermal pad (connect to GND) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLS115D0LDXUMA1 is suitable for 6 applications: Off-Board Automotive Sensor Power, Powertrain Management Systems, Body Electronics and Lighting Modules, Chassis Control and ABS Modules, Industrial Sensor Signal Conditioning, Battery Management Sensor Supplies.
Off-Board Automotive Sensor Power
The TLS115D0LDXUMA1 is purpose-built to supply off-board sensors in automotive powertrain applications such as MAP, MAF, and oxygen sensors. Its tracking topology ensures the sensor supply is ratiometric with the ECU reference voltage, eliminating ground-loop errors in ADC measurements. With 150 mA continuous output current and integrated reverse-polarity protection, it survives harsh automotive transients without external protection diodes. The PG-TSON-10 exposed-pad package occupies just 3x3 mm and provides low thermal resistance for sustained operation at full load.
Recommended
Powertrain Management Systems
In powertrain ECUs, the TLS115D0LDXUMA1 provides a clean tracking reference for analog sensor signal chains feeding the ECU ADC. The Power Good output enables diagnostic supervision of the sensor supply, supporting ASIL-relevant safety architectures. AEC-Q100 qualification and -40C to +125C operation ensure reliability under hood temperatures. The wide input voltage range handles 12V battery cold-crank and load-dump conditions per ISO 7637, simplifying upstream protection design.
Recommended
Body Electronics and Lighting Modules
Body control modules (BCMs) and lighting ECUs use the TLS115D0LDXUMA1 to power off-board Hall-effect position sensors, ambient light sensors, and LED driver references. Its small TSON-10 footprint enables placement near connector pins, minimizing trace lengths and EMI susceptibility. The enable pin supports low-power standby modes critical for always-on body electronics. Tracking topology keeps the sensor output ratiometric with the ECU master reference, simplifying ADC scaling across the operating temperature range.
Recommended
Chassis Control and ABS Modules
Chassis control ECUs such as ABS, ESC, and active suspension units require stable, ratiometric sensor supplies for wheel-speed and position sensors. The TLS115D0LDXUMA1's tracking regulator topology maintains precise sensor scaling even as battery voltage sags during cranking. AEC-Q100 qualification and reverse-polarity protection support direct battery connection at the module input. The exposed-pad package dissipates the regulator's quiescent and dropout heat efficiently in vibration-heavy chassis mounting environments.
Recommended
Industrial Sensor Signal Conditioning
Beyond automotive, the TLS115D0LDXUMA1 suits industrial 24V sensor signal conditioning in factory automation. Its tracking topology isolates the ADC reference scaling from supply variation, improving measurement repeatability. The -40C to +125C operation covers outdoor and cabinet-mounted industrial environments. Reverse-polarity protection safeguards against wiring errors during field installation, reducing service and warranty costs for OEMs deploying sensor modules in the field.
Recommended
Battery Management Sensor Supplies
Battery management systems (BMS) in mild-hybrid and 48V vehicles use the TLS115D0LDXUMA1 to supply cell voltage and current sensors. The tracking output maintains ratiometric scaling with the BMS master reference, critical for accurate state-of-charge calculations. Reverse-polarity protection prevents damage during battery service and jump-start events. The Power Good output feeds the BMS watchdog, enabling fault detection within the functional safety architecture.
Recommended
Recommended Products Summary
Engineering reference data for TLS115D0LDXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLS115D0EJXUMA1 | TLS850B0TEV50ATMA1 | TLE42744DV50ATMA1 |
|---|---|---|---|---|
| Package | PG-TSON-10 | DSO-8 EP (different) | TO-252 (different) | TO-252 (different) |
| Brand | Infineon | Infineon | Infineon | Infineon |
| Output Current | 150 mA | 150 mA | 500 mA | 400 mA |
| Output Type | Adjustable Tracking | Adjustable Tracking | Fixed 5V | Fixed 5V |
| Automotive Grade | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
| Enable Pin | Yes | Yes | Yes | Yes |
| Power Good | Yes | Yes | Yes | No |
| Tracking Topology | Yes | Yes | No | No |
Key Differentiators
- Tracking regulator topology for ratiometric sensor power (vs TLS850B0TEV50ATMA1)
- Integrated reverse-polarity protection on input (vs TLE42744DV50ATMA1)
- Smallest package footprint in OPTIREG tracking family (vs TLS115D0EJXUMA1)
Design Notes
The PG-TSON-10 package has a low thermal resistance when the exposed pad is soldered to the PCB ground plane. At 150 mA load and 0.5 V dropout, the IC dissipates approximately 75 mW, well within the package rating. Ensure at least 25 mmΒ² of copper pour on the EP pad to achieve datasheet thermal performance. Insufficient copper will raise junction temperature and may trigger thermal shutdown under sustained full-load conditions at high ambient temperatures.
Place input and output ceramic capacitors (X7R, 100 nF minimum; 1 Β΅F recommended for load transients) as close to the IC pins as possible. Keep the ADJ/resistor divider traces short and away from noisy switching nodes. The exposed pad must be soldered to the PCB ground plane through multiple thermal vias (recommended: 4-9 vias at 0.3 mm drill) for optimal heat spreading. Follow the Infineon application note layout reference for automotive regulator designs.
Do not exceed the maximum input voltage or operate without the input capacitor, as this can cause instability. The ADJ pin sets the tracking ratio - incorrect resistor values will cause the sensor supply to be non-ratiometric with the ECU reference, introducing ADC measurement errors. The Power Good output is open-drain and requires an external pull-up resistor. Reverse-polarity protection is integrated on VIN but does not protect the load - place a reverse-blocking diode or P-MOSFET on the output if off-board short to ground is possible.
Compliance Information
AEC-Q100 qualified per Infineon datasheet for automotive applications. RoHS compliant. Halogen-free status not specified in available data.
