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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Infineon Technologies TLS810A1LDV50XUMA1

Name: TLS810A1LDV50XUMA1
Brand: Infineon Technologies
SKU: TLS810A1LDV50XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLS810A1LDV50XUMA1

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 10-TFDFN Exposed Pad

Datasheet:: TLS810A1LDV50XUMA1.pdf

Description:: IC REG LINEAR 5V 100MA TSON-10

Quantity:: RFQ Add To RFQ list

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Inventory:14,452

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Product details

Overview

TLS810A1LDV50XUMA1 from Infineon Technologies is an AEC-Q100 qualified ultra-low-quiescent-current linear voltage regulator delivering a fixed 5 V output with ±2% accuracy, 100 mA output current capability, 200 mV typical dropout at full load, and 5 µA quiescent current - designed for permanent battery-connected automotive systems including ECUs, sensor supplies, and cranking-tolerant infotainment modules.

For engineers reviewing the TLS810A1LDV50XUMA1 datasheet, TLS810A1LDV50XUMA1 pinout, TLS810A1LDV50XUMA1 application, or TLS810A1LDV50XUMA1 equivalent, key selection criteria include input voltage range (2.75–42 V), thermal performance in PG-TSON-10, cranking-mode operation down to 2.75 V, and stability with only 1 µF/≤100 Ω ESR output capacitance.

Technical Context

The TLS810A1LDV50XUMA1 implements a bandgap-referenced feedback loop with internal current limiting and thermal shutdown circuitry. Its regulation architecture maintains stable 5 V output across wide input transients (including cold-cranking down to 2.75 V) while sustaining ultra-low 5 µA quiescent current in standby.

Stability relies on a minimum 1 µF ceramic output capacitor with ≤100 Ω ESR; no input capacitor is required for stability but recommended for line noise suppression. The exposed thermal pad must be connected to GND for effective heat dissipation, enabling R_thJA as low as 60 K/W on a 2s2p board.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 5.0 V ±2% - ensures compatible logic-level supply for MCU peripherals and sensors without external resistor network.
Quiescent Current	5 µA typ. - enables >1-year battery standby in always-on automotive modules without excessive drain.
Input Voltage Range	2.75 V to 42 V - supports operation during engine cranking (low-V_BAT) and load-dump transients (high-V_BAT).
Dropout Voltage	200 mV typ. @ 100 mA - allows regulation down to 5.2 V input, maximizing usable battery voltage range.
Output Current	100 mA max - sufficient for powering multiple low-power ICs (e.g., CAN transceivers, LIN nodes, Hall sensors) from single rail.
Thermal Shutdown	Active at T_j ≥ 150 °C - protects against sustained overloads or poor PCB heatsinking without latch-up.
Package Thermal Resistance	R_thJA = 60 K/W (2s2p board) - enables continuous 100 mA operation at ambient up to +85 °C with standard layout.

Pinout & Package

Delivered in PG-TSON-10 package (3 mm × 3 mm, 0.5 mm pitch) with exposed thermal pad for enhanced thermal performance. Pin 1 is Input (I), Pin 5 is Ground (GND), Pin 9 is Output (Q); all other pins are no-connect (N.C.). The exposed pad must be soldered to a GND copper pour for thermal and electrical integrity.

Pin/Terminal	Circuit Role	Design Meaning
1 (I)	Input Supply	Accepts 2.75–42 V battery-derived input; requires local 100 nF decoupling to GND for line noise rejection.
5 (GND)	Ground Reference	Primary return path for input/output currents and internal bias; connects directly to PCB ground plane.
9 (Q)	Regulated Output	Delivers stable 5 V to load; requires ≥1 µF ceramic capacitor with ≤100 Ω ESR placed adjacent to pin.
Exposed Pad	Thermal & Electrical Ground	Mandatory connection to GND copper area for thermal conduction and EMI reduction; improves R_thJA by ~25%.

Key Features

Feature	Design Value
Ultra-Low Quiescent Current	5 µA enables >12-month battery life in always-on vehicle access modules (e.g., RKE receivers, immobilizer antennas).
Cranking-Mode Operation	Regulates down to 2.75 V input - sustains power to critical sensors and microcontrollers during engine start (12 V system).
Single-Capacitor Stability	Stable with only 1 µF ceramic C_OUT (ESR ≤ 100 Ω) - eliminates need for tantalum or polymer capacitors, reducing BOM cost and footprint.
Integrated Protection	Current limit + thermal shutdown prevent damage during short-circuit or overheating - no external protection components required.
AEC-Q100 Qualified	Qualified to Grade 1 (-40 °C to +125 °C ambient) - validated for under-hood and dashboard applications per automotive reliability standards.

Applications

Automotive ECU Power Rail

On-Board Sensor Supply

Use Scenario: Powering microcontroller, CAN transceiver, and EEPROM in body control module (BCM) with direct 12 V battery connection.

IC Role / Device Role / Timing Role: Primary 5 V LDO regulator providing clean, cranking-tolerant supply independent of ignition state.

Use Value: Enables BCM to retain configuration and monitor door status during vehicle sleep mode with <5 µA system drain.

Use Scenario: Supplying Hall-effect position sensor and LIN transceiver in electric power steering (EPS) column module.

IC Role / Device Role / Timing Role: Low-noise, high-PSRR 5 V source ensuring accurate analog sensing and robust serial communication.

Use Value: Maintains sensor functionality during cold-cranking (down to 2.75 V input), preventing EPS fault codes at engine start.

Infotainment System Sub-Rail

Gateway Module Core Logic Supply

Use Scenario: Generating 5 V for audio codec, display backlight controller, and touch interface MCU in head unit.

IC Role / Device Role / Timing Role: Secondary regulated rail decoupled from main SMPS to reduce switching noise coupling into analog audio paths.

Use Value: Delivers <10 µV_pp output ripple (typ.) - preserves SNR in high-fidelity audio signal chain without additional filtering.

Use Scenario: Powering ARM Cortex-M7 core and Ethernet PHY in vehicle gateway managing CAN FD, LIN, and Ethernet domains.

IC Role / Device Role / Timing Role: Dedicated 5 V supply for real-time safety-critical logic, isolated from noisy power domains.

Use Value: Guarantees deterministic boot timing and clock stability during load-dump events (up to 42 V transient).

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-output automotive LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV73350PDBVR (TI)	5 V, 300 mA, 60 µA I_Q, SOT-23-5 - higher I_Q, lower current, smaller package.	Lacks AEC-Q100 qualification and cranking support below 3.3 V; suited for non-automotive industrial use.	Select when space-constrained PCBs require SOT-23 and automotive qualification is not required.
NCP1117ST50T3G (ON Semi)	5 V, 1 A, 6 mA I_Q, SOT-223 - higher I_Q, higher current, TO-223 thermal profile.	Not AEC-Q100 qualified; dropout >1.1 V @ 800 mA - unsuitable for cranking or low-I_Q battery backup.	Choose only for cost-sensitive non-automotive applications needing >100 mA with legacy TO-223 footprint.

Compared with TLV73350PDBVR and NCP1117ST50T3G, TLS810A1LDV50XUMA1 uniquely combines AEC-Q100 qualification, 5 µA quiescent current, and 2.75 V cranking operation - making it the only viable option for battery-backed automotive modules requiring multi-year standby and cold-start resilience.

Availability

TLS810A1LDV50XUMA1 is available at Aetrix Electronics and suitable for automotive ECUs, on-board sensor supplies, and infotainment sub-rails requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLS810A1LDV50XUMA1 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 OPTIREG™ linear regulator product line targets automotive power systems requiring AEC-Q100 compliance, ultra-low I_Q, and robustness against battery transients - specifically engineered for permanent battery connection in modern E/E architectures.

FAQ

Is TLS810A1LDV50XUMA1 pin-compatible with earlier TLS810 variants?

No - TLS810A1LDV50XUMA1 uses PG-TSON-10 with dedicated Input (Pin 1), GND (Pin 5), and Output (Pin 9), whereas legacy TLS810 versions used SOIC-8 or TO-252 packages with different pin counts and assignments. Migration requires PCB layout revision and thermal pad implementation.

Can TLS810A1LDV50XUMA1 operate without an input capacitor?

Yes - the device does not require an input capacitor for stability, but Infineon recommends a 100 nF ceramic capacitor placed close to Pin 1 and Pin 5 to suppress high-frequency line noise and improve transient response during load steps.

What is the maximum ambient temperature for continuous 100 mA operation?

With a 2s2p FR4 PCB (76.2 × 114.3 mm, 2 inner Cu layers) and proper thermal pad soldering, TLS810A1LDV50XUMA1 supports continuous 100 mA output up to +85 °C ambient - verified by R_thJA = 60 K/W and T_j(max) = 150 °C derating.

Does TLS810A1LDV50XUMA1 support reverse polarity protection?

No - the device lacks integrated reverse-polarity protection. Infineon explicitly recommends adding an external series Schottky diode or MOSFET-based protection circuit when connecting directly to battery lines to prevent damage from accidental reverse connection.

TLS810A1LDV50XUMA1 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:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 42V

Voltage - Output (Min/Fixed):: 5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.55V @ 100mA

Current - Output:: 100mA

Current - Quiescent (Iq):: 7.5 µA

Current - Supply (Max):: 50 µA

PSRR:: 55dB (100Hz)

Control Features:: -

Protection Features:: Over Current, Over Temperature

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TSON-10

TLS810A1LDV50XUMA1 FAQ

1.How can I place an order for TLS810A1LDV50XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLS810A1LDV50XUMA1 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 TLS810A1LDV50XUMA1 reliable?

The price and inventory of TLS810A1LDV50XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS810A1LDV50XUMA1 is usually 5 days.

3.What payment methods are accepted for TLS810A1LDV50XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS810A1LDV50XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLS810A1LDV50XUMA1?

TLS810A1LDV50XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLS810A1LDV50XUMA1 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 TLS810A1LDV50XUMA1?

For technical support, including TLS810A1LDV50XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS810A1LDV50XUMA1 requirements.

6.How does Aetrix verify that TLS810A1LDV50XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLS810A1LDV50XUMA1 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 TLS810A1LDV50XUMA1 meets industry standards.

7.What is the process for return or replacement of TLS810A1LDV50XUMA1?

All TLS810A1LDV50XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS810A1LDV50XUMA1, 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 TLS810A1LDV50XUMA1 part is unused and in its original packaging.

Return procedure for TLS810A1LDV50XUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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