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Infineon Technologies TLS810B1LDV33XUMA1
- Part No.:
- TLS810B1LDV33XUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 10-TFDFN Exposed Pad
- Datasheet:
-
TLS810B1LDV33XUMA1.pdf
- Description:
- IC REG LINEAR 3.3V 100MA TSON-10
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
TLS810B1LDV33XUMA1 from Infineon Technologies is a fixed-output 3.3 V AEC-Q100 qualified linear voltage regulator in PG-TSON-10 package, delivering up to 100 mA output current with ultra-low 5.5 µA quiescent current and 250 mV typical dropout at full load. It operates across 2.75–42 V input range and features enable control, overtemperature shutdown, and current-limit protection - designed for permanent battery-connected automotive systems including sensor supplies and gateway ECUs.
For engineers reviewing the TLS810B1LDV33XUMA1 datasheet, TLS810B1LDV33XUMA1 pinout, TLS810B1LDV33XUMA1 application, or TLS810B1LDV33XUMA1 equivalent, key selection criteria include cranking-mode operation down to 2.75 V input, <1 µA off-mode current, ±2% output accuracy, thermal performance on 1s0p vs 2s2p PCBs, and compatibility with 1 µF ceramic output capacitance.
Technical Context
The TLS810B1LDV33XUMA1 implements a bandgap-referenced regulation architecture with fast transient response enabled by internal compensation requiring only 1 µF output capacitance. Its tracking region begins at 2.75 V input, allowing stable 3.3 V output during automotive cranking events where battery voltage dips below 6 V.
Internal protection includes foldback current limiting (typ. 130 mA) and thermal shutdown at ~165 °C junction temperature. The integrated pull-down on EN pin ensures default-off behavior, and the exposed thermal pad must be connected to GND for optimal RthJA of 60 K/W on 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 network. |
| Quiescent Current | 5.5 µA typ. - enables >10-year battery standby in always-on automotive modules powered directly from vehicle battery. |
| Dropout Voltage | 250 mV typ. @ 100 mA - supports regulation down to 3.55 V input, critical for operation during cold-crank (≤6 V) conditions. |
| Input Voltage Range | 2.75 V to 42 V - covers full automotive battery range including load dump (40 V surge) and cranking (≤3 V dip). |
| Enable Threshold | VEN(H) ≥ 2.0 V, VEN(L) ≤ 0.8 V - compatible with standard 3.3 V/5 V GPIO without level-shifting. |
| Thermal Resistance | RthJA = 60 K/W (2s2p board) - requires minimal copper area for thermal management in space-constrained ECU designs. |
| Protection Features | Current limit (130 mA typ.), overtemperature shutdown (~165 °C), reverse polarity robustness - eliminates need for external protection circuitry. |
Pinout & Package
Package: PG-TSON-10 (3 mm × 3 mm, 0.5 mm pitch, exposed thermal pad). Thermal pad must be soldered to GND plane for specified RthJA performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Main power input; requires local 100 nF ceramic decoupling to GND for noise immunity and line transient suppression. |
| 3 (EN) | Enable | Active-high digital control input with internal pull-down; drives device into <1 µA off-state when low. |
| 5 (GND) | Ground | Power and signal reference; connects to PCB ground plane and thermal pad for thermal conduction. |
| 9 (Q) | Output | Regulated 3.3 V output; requires 1 µF ceramic capacitor (±30% tolerance) with ≤100 Ω ESR for stability. |
| Pad (EP) | Thermal Pad | Exposed copper pad; must be soldered to GND plane with thermal vias to achieve rated RthJA = 60 K/W. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ operation | 5.5 µA quiescent current enables >10-year battery life in always-on automotive modules (e.g., RKE receivers, immobilizer antennas). |
| Cranking-mode support | Regulation starts at 2.75 V input - sustains 3.3 V output during engine start when battery drops to 3–4 V for seconds. |
| Minimal external components | Stable with only 1 µF ceramic output cap - reduces BOM count and PCB area vs legacy LDOs requiring ≥10 µF tantalum. |
| AEC-Q100 Grade 1 qualification | Rated for -40 °C to +125 °C ambient operation - validated for under-hood ECU placement without derating. |
| Integrated fault protection | Auto-recovering current limit and thermal shutdown prevent latch-up or destruction during short-circuit or overheating events. |
Applications
| Automotive Sensor Supply | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Powering MEMS accelerometers and Hall-effect position sensors in door modules and seat controls. IC Role / Device Role / Timing Role: Primary 3.3 V bias rail generator with direct battery connection and cranking resilience. Use Value: Maintains sensor functionality during engine start (≥2.75 V input), eliminating data loss or reset events in safety-critical sensing paths. |
Use Scenario: Supplying microcontroller I/O banks and CAN transceiver logic in centralized body electronics units. IC Role / Device Role / Timing Role: Low-noise, enable-controlled auxiliary regulator for subsystem power domains. Use Value: Enables software-controlled power gating of non-critical functions (e.g., interior lighting drivers) to reduce parasitic drain. |
| Infotainment Head Unit | Gateway ECU |
|
Use Scenario: Providing clean 3.3 V for audio codec ICs and display interface logic in dashboard infotainment systems. IC Role / Device Role / Timing Role: Post-regulator for noise-sensitive analog/digital mixed-signal blocks. Use Value: Ultra-low IQ minimizes heat generation near temperature-sensitive LCD panels while maintaining PSRR >60 dB at 100 kHz. |
Use Scenario: Powering Ethernet PHY controllers and LIN transceivers in vehicle communication gateways. IC Role / Device Role / Timing Role: Dedicated supply for high-speed interface ICs requiring stable voltage during bus arbitration and wake-up events. Use Value: Fast regulation recovery (<10 µs) after load transients ensures reliable packet timing in multi-protocol gateway architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | 3.3 V, 300 mA, 65 µA IQ, SOT-23-5, no AEC-Q100 qualification | Higher output current but higher quiescent current; not automotive-qualified | Select for cost-sensitive industrial or consumer designs where AEC-Q100 and <10 µA IQ are not required. |
| TPS7B8733QKVURQ1 | 3.3 V, 500 mA, 35 µA IQ, WSON-10, AEC-Q100 Grade 1, 2.7–40 V input | Higher current capability and lower dropout (170 mV @ 500 mA), but larger package and higher IQ | Select when >100 mA load or tighter dropout margin is needed, accepting 6× higher quiescent current. |
Compared with TLV73333PDBVR and TPS7B8733QKVURQ1, TLS810B1LDV33XUMA1 uniquely balances ultra-low IQ (5.5 µA), AEC-Q100 compliance, and cranking-mode operation (2.75 V start), making it optimal for battery-permanent automotive nodes where standby lifetime and cold-crank reliability are primary constraints.
Availability
TLS810B1LDV33XUMA1 is available at Aetrix Electronics and suitable for automotive sensor supply, gateway ECU power rails, infotainment subsystems, and body control modules requiring stable component supply across extended temperature and voltage ranges.
Supply support for TLS810B1LDV33XUMA1 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 TLS810B1 series belongs to Infineon's OPTIREG™ linear regulator product line, engineered specifically for permanent-battery automotive applications demanding ultra-low quiescent current, cranking resilience, and AEC-Q100 reliability.
FAQ
What is the minimum input voltage required for regulation at full 100 mA load?
The TLS810B1LDV33XUMA1 maintains regulation down to 2.75 V input - enabling continuous 3.3 V output even during severe automotive cranking events where battery voltage drops to 3–4 V. At 100 mA load, the dropout is 250 mV, so input must remain ≥3.55 V for nominal regulation; however, the extended tracking region allows functional output down to 2.75 V input with reduced output voltage.
Can the exposed thermal pad be left floating or must it be connected to GND?
The exposed thermal pad must be soldered to the PCB GND plane using thermal vias. Leaving it unconnected degrades RthJA from 60 K/W to 184 K/W (1s0p board), risking thermal shutdown above ~65 mA load at +85 °C ambient. Connection to GND also provides electrical shielding and improves ESD robustness per HBM/CDM specifications.
Is an input capacitor required, and what value is recommended?
A 100 nF ceramic capacitor is recommended between pin 1 (I) and pin 5 (GND), placed as close as possible to the IC terminals. This suppresses high-frequency noise and line transients from the battery rail, preventing instability or false enable/disable triggering. Larger bulk capacitors (e.g., 10 µF) may be added upstream but are not required for basic regulation stability.
Does the device support reverse battery protection, and what is its absolute maximum reverse voltage rating?
The TLS810B1LDV33XUMA1 does not integrate reverse polarity protection. Its absolute maximum input voltage rating is -0.3 V - meaning any reverse voltage applied to pin 1 will cause immediate damage. External protection (e.g., series Schottky diode or ideal diode controller) is mandatory in systems where battery reversal is possible, such as service or jump-start scenarios.
TLS810B1LDV33XUMA1 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:
- Enable
- 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
TLS810B1LDV33XUMA1 FAQ
1.How can I place an order for TLS810B1LDV33XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLS810B1LDV33XUMA1 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 TLS810B1LDV33XUMA1 reliable?
The price and inventory of TLS810B1LDV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS810B1LDV33XUMA1 is usually 5 days.
3.What payment methods are accepted for TLS810B1LDV33XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS810B1LDV33XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLS810B1LDV33XUMA1?
TLS810B1LDV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLS810B1LDV33XUMA1 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 TLS810B1LDV33XUMA1?
For technical support, including TLS810B1LDV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS810B1LDV33XUMA1 requirements.
6.How does Aetrix verify that TLS810B1LDV33XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLS810B1LDV33XUMA1 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 TLS810B1LDV33XUMA1 meets industry standards.
7.What is the process for return or replacement of TLS810B1LDV33XUMA1?
All TLS810B1LDV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS810B1LDV33XUMA1, 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 TLS810B1LDV33XUMA1 part is unused and in its original packaging.
Return procedure for TLS810B1LDV33XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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