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

Infineon Technologies TLS810A1LDV33XUMA1

Name: TLS810A1LDV33XUMA1
Brand: Infineon Technologies
SKU: TLS810A1LDV33XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TLS810A1LDV33XUMA1

Manufacturer:: Infineon Technologies

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

Package:: 10-TFDFN Exposed Pad

Datasheet:: TLS810A1LDV33XUMA1.pdf

Description:: IC REG LIN 3.3V 100MA TSON-10-2

Quantity:: RFQ Add To RFQ list

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Inventory:6,376

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Product details

Overview

TLS810A1LDV33XUMA1 from Infineon Technologies is an AEC-Q100 qualified ultra-low-quiescent-current linear voltage regulator delivering a fixed 3.3 V output with ±2% accuracy, 100 mA output current capability, 250 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 TLS810A1LDV33XUMA1 datasheet, TLS810A1LDV33XUMA1 pinout, TLS810A1LDV33XUMA1 application, or TLS810A1LDV33XUMA1 equivalent, this page provides verified functional specifications, PG-TSON-10 package mapping, thermal resistance data, protection behavior under short-circuit/overtemperature, and validated automotive-grade alternatives for direct-battery-supply designs.

Technical Context

The TLS810A1LDV33XUMA1 implements a bandgap-referenced feedback loop with internal current limiting and thermal shutdown circuitry. Its regulation architecture maintains stable 3.3 V output across input voltages from 2.75 V to 42 V, enabling operation during cold-cranking (down to 2.75 V) while sustaining <5 µA quiescent draw in standby.

Stability relies on a minimum 1 µF ceramic output capacitor with ESR ≤100 Ω; 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, supporting R_thJA as low as 60 K/W on a 2s2p board.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 3.3 V ±2% - ensures compatible logic-level supply for MCU peripherals and sensors without external feedback resistors.
Quiescent Current	5 µA typ. - enables >1-year battery standby in always-on automotive modules without parasitic drain concerns.
Input Voltage Range	2.75 V to 42 V - supports full automotive battery range including cranking dips and load-dump transients.
Dropout Voltage	250 mV typ. @ 100 mA - allows regulation down to 3.55 V input, critical for low-V_IN operation during engine start.
Output Current	100 mA max - sufficient for powering multiple low-power sensors, CAN transceivers, or microcontroller I/O rails.
Thermal Shutdown	Active at T_j ≥150 °C - protects against sustained overloads; auto-restarts after cooldown, preventing latch-up failure.
Protection Features	Current limit + thermal shutdown - safeguards against output short-to-GND, overcurrent, and ambient overheating without external components.

Pinout & Package

Package: PG-TSON-10 (3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad). The package integrates a copper-exposed die pad for enhanced thermal performance and requires PCB soldering of the pad to GND plane.

Pin/Terminal	Circuit Role	Design Meaning
1 (I)	Input Supply	Main VIN connection; requires local 100 nF ceramic decoupling to GND to suppress high-frequency noise.
5 (GND)	Ground Reference	Primary return path for input/output currents and internal bias; must connect to low-impedance ground plane.
9 (Q)	Regulated Output	3.3 V regulated output; requires 1 µF ceramic capacitor (ESR ≤100 Ω) placed adjacent to pin for loop stability.
Pad (Exposed)	Thermal & Electrical Ground	Must be soldered to GND plane to achieve specified R_thJA = 60 K/W and prevent thermal derating above 65 °C ambient.

Key Features

Feature	Design Value
Ultra-low IQ operation	5 µA quiescent current enables >10-year shelf life in battery-backed telematics and keyless entry modules.
Extended cranking support	Regulation starts at 2.75 V input - sustains power to safety-critical sensors during engine start when battery drops to ~6 V.
Single-capacitor stability	Stable with only 1 µF ceramic output cap (no electrolytic or tantalum required), reducing BOM cost and footprint.
AEC-Q100 Grade 1 qualification	Validated for -40 °C to +125 °C ambient operation - meets automotive ECU reliability requirements without derating.
Integrated fault protection	No external current-sense resistor or thermal sensor needed - internal current limit and thermal shutdown reduce system complexity.

Applications

Body Control Module (BCM)

Engine Control Unit (ECU) Sensor Rail

Use Scenario: Powering LIN transceivers, door lock actuators, and interior lighting drivers in always-on vehicle domains.

IC Role / Device Role / Timing Role: Primary 3.3 V supply rail regulator with ultra-low standby current to meet OEM battery drain limits (<20 µA).

Use Value: Eliminates need for external enable logic or sleep controllers - maintains regulation while drawing only 5 µA during ignition-off state.

Use Scenario: Supplying oxygen sensors, knock sensors, and crankshaft position sensors in engine bay environments.

IC Role / Device Role / Timing Role: Local post-regulator for analog front-end circuits requiring clean, stable 3.3 V despite wide input fluctuations.

Use Value: Maintains output during cranking (2.75 V min input) and survives load-dump transients up to 42 V without reset or dropout.

Infotainment Head Unit

RKE/Immobilizer Module

Use Scenario: Providing auxiliary 3.3 V rail for display interface ICs, audio codecs, and touch controller logic in dashboard systems.

IC Role / Device Role / Timing Role: Secondary LDO for noise-sensitive digital subsystems, decoupled from noisy main 5 V domain.

Use Value: Low 250 mV dropout preserves headroom for operation under low-battery conditions; 2% accuracy ensures reliable ADC reference stability.

Use Scenario: Powering RF receiver ICs, EEPROM, and microcontroller cores in passive keyless entry fobs and immobilizer antennas.

IC Role / Device Role / Timing Role: Always-on regulator for wake-on-RF functionality with minimal self-consumption between transmissions.

Use Value: 5 µA IQ extends coin-cell battery life beyond 5 years; integrated current limit prevents damage during antenna detuning events.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-I_Q automotive LDO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV73333PDBVR	3.3 V fixed, 300 mA, 65 µA IQ, SOT-23-5 package, no AEC-Q100 qualification	Lacks automotive qualification and cranking-range operation (min V_IN = 1.4 V, but not validated below 3.0 V)	Use only in non-automotive industrial or consumer applications where AEC-Q100 and cranking support are not required.
MAX1725EUT33+T	3.3 V fixed, 150 mA, 3.5 µA IQ, SOT-23-5, AEC-Q100 Grade 2 (–40°C to +105°C)	Lower temperature rating (Grade 2 vs. Grade 1), higher dropout (300 mV @ 100 mA), no extended cranking mode	Select when ambient operating temperature stays below 105°C and cranking margin is less critical than ultra-low IQ.

Compared with TLV73333PDBVR and MAX1725EUT33+T, TLS810A1LDV33XUMA1 uniquely combines AEC-Q100 Grade 1 qualification, 2.75 V cranking support, and 5 µA IQ in a thermally enhanced PG-TSON-10 package - making it the only choice for safety-critical, always-on automotive rails demanding full-spec compliance.

Availability

TLS810A1LDV33XUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, engine sensor supplies, and infotainment subsystems requiring stable component supply, long-lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for TLS810A1LDV33XUMA1 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 electronics, and industrial control ICs, with global manufacturing and qualification infrastructure.

The OPTIREG™ linear regulator product line targets automotive and industrial applications requiring high reliability, low power consumption, and robust fault protection - specifically engineered for direct-battery-supplied systems with stringent quiescent current and cranking-voltage demands.

FAQ

Is TLS810A1LDV33XUMA1 qualified for automotive use?

Yes. It is fully qualified per AEC-Q100 Grade 1 (−40 °C to +125 °C ambient), with validation covering temperature cycling, humidity testing, and lifetime reliability under automotive stress profiles. This includes operation during cold-cranking (2.75 V input) and load-dump immunity up to 42 V.

What is the minimum output capacitance required for stability?

A single 1 µF ceramic capacitor with ESR ≤100 Ω is mandatory for stable regulation. This value accounts for worst-case ±30% capacitance tolerance and ensures phase margin across all load and temperature conditions per Infineon's characterization.

Can TLS810A1LDV33XUMA1 replace a standard 3.3 V LDO in non-automotive designs?

Yes - its 3.3 V ±2% output, 100 mA capability, and 5 µA quiescent current make it suitable for battery-powered IoT nodes and portable instrumentation. However, its PG-TSON-10 footprint and automotive qualification add cost versus generic LDOs unless low-I_Q and ruggedness are critical.

How does the thermal pad affect performance?

The exposed pad must be soldered to a GND-connected copper area. Without it, R_thJA degrades from 60 K/W to 184 K/W, causing >3× higher junction temperature rise at 100 mA - risking thermal shutdown in enclosed enclosures above 65 °C ambient.

TLS810A1LDV33XUMA1 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):: 3.3V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.65V @ 100mA

Current - Output:: 100mA

Current - Quiescent (Iq):: 10 µA

Current - Supply (Max):: 15 µA

PSRR:: 60dB (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, Wettable Flank

Supplier Device Package:: PG-TSON-10-2

TLS810A1LDV33XUMA1 FAQ

1.How can I place an order for TLS810A1LDV33XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TLS810A1LDV33XUMA1 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 TLS810A1LDV33XUMA1 reliable?

The price and inventory of TLS810A1LDV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS810A1LDV33XUMA1 is usually 5 days.

3.What payment methods are accepted for TLS810A1LDV33XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS810A1LDV33XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TLS810A1LDV33XUMA1?

TLS810A1LDV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TLS810A1LDV33XUMA1 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 TLS810A1LDV33XUMA1?

For technical support, including TLS810A1LDV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS810A1LDV33XUMA1 requirements.

6.How does Aetrix verify that TLS810A1LDV33XUMA1 is sourced from the original manufacturer or authorized distributors?

All TLS810A1LDV33XUMA1 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 TLS810A1LDV33XUMA1 meets industry standards.

7.What is the process for return or replacement of TLS810A1LDV33XUMA1?

All TLS810A1LDV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS810A1LDV33XUMA1, 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 TLS810A1LDV33XUMA1 part is unused and in its original packaging.

Return procedure for TLS810A1LDV33XUMA1:

1.Submit a request within 90 days.

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

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