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Infineon Technologies TLS810B1EJV33XUMA1
- Part No.:
- TLS810B1EJV33XUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLS810B1EJV33XUMA1.pdf
- Description:
- IC REG LIN 3.3V 100MA 8DSO E-PAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,496
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Product details
Overview
TLS810B1EJV33XUMA1 from Infineon Technologies is an AEC-Q100 qualified ultra-low-quiescent-current linear voltage regulator delivering fixed 3.3 V output at up to 100 mA, with 5.5 µA quiescent current, 2.75–42 V input range, and 250 mV typical dropout at full load-designed for permanent battery-connected automotive ECUs and sensor supplies.
For engineers reviewing the TLS810B1EJV33XUMA1 datasheet, TLS810B1EJV33XUMA1 pinout, TLS810B1EJV33XUMA1 application, or TLS810B1EJV33XUMA1 equivalent, key selection criteria include cranking-mode operation down to 2.75 V input, enable-controlled <1 µA off-state current, ±2% output accuracy, thermal shutdown, and current limiting in PG-DSO-8 EP packaging.
Technical Context
The TLS810B1EJV33XUMA1 implements a bandgap-referenced linear regulation architecture with integrated enable control, overtemperature shutdown, and foldback current limiting. Its tracking region begins at 2.75 V, enabling stable 3.3 V output during automotive cranking events where battery voltage dips below 6 V.
It requires only a 1 µF ceramic output capacitor with ≤100 Ω ESR for stability and features an exposed thermal pad connected to GND. Input transient tolerance extends to 45 V, and ESD robustness meets 2 kV HBM and 750 V CDM standards per JEDEC.
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. |
| Quiescent Current | 5.5 µA typ. - enables always-on functionality in battery-coupled systems with multi-year standby life. |
| Input Voltage Range | 2.75 V to 42 V - supports cold-crank (down to 2.75 V) and load-dump (up to 42 V) conditions in 12 V automotive systems. |
| Dropout Voltage | 250 mV typ. @ 100 mA - maintains regulation even when input drops to 3.55 V, critical for post-cranking recovery. |
| Output Current | 100 mA max - sufficient for powering microcontrollers, CAN transceivers, and analog sensors in compact ECUs. |
| Enable Threshold | EN high ≥2.0 V, low ≤0.8 V - compatible with standard 3.3 V/5 V logic; internal pull-down ensures default-off state. |
| Thermal Shutdown | Activates at Tj ≥150 °C - protects against sustained overload or poor PCB heatsinking in enclosed modules. |
Pinout & Package
Delivered in PG-DSO-8 EP (exposed pad) package, optimized for thermal performance in space-constrained automotive modules. The exposed pad must be soldered to a GND-connected copper area for effective heat dissipation (RthJA = 51 K/W on 2s2p board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Main power input; requires local 100 nF ceramic decoupling to suppress line noise and transients. |
| 3 (EN) | Enable | Active-high digital control; internal pull-down ensures safe default-off state during power-up or MCU reset. |
| 4 (GND) | Ground | Power and signal reference; must be low-impedance connection shared with exposed pad. |
| 8 (Q) | Output | Regulated 3.3 V supply; requires 1 µF ceramic capacitor with ≤100 Ω ESR placed adjacent to pin. |
| Exposed Pad | Thermal / GND | Primary thermal path; must be soldered to large GND copper pour or thermal via array for reliability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 5.5 µA enables >10-year battery standby in telematics modules powered directly from vehicle battery. |
| Cranking-mode operation | Regulates down to 2.75 V input - sustains ECU functionality during engine start when battery sags to ~3 V. |
| Integrated protection | Current limit + thermal shutdown prevent latch-up or destruction during short-circuit or overheating faults. |
| Single-capacitor stability | Stable with only 1 µF ceramic output cap - eliminates need for bulk electrolytic or complex compensation networks. |
| AEC-Q100 qualified | Qualified to Grade 1 (-40 °C to +125 °C ambient) - validated for under-hood and dashboard mounting positions. |
Applications
| Automotive Body Control Module (BCM) | On-Board Diagnostic (OBD-II) Sensor Hub |
|---|---|
|
Use Scenario: Powering microcontroller, LIN transceiver, and door-lock actuators in BCM with direct battery tie. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying core logic and communication interfaces. Use Value: 5.5 µA quiescent current minimizes parasitic drain during vehicle sleep mode, extending battery life between charges. |
Use Scenario: Supplying pressure, temperature, and NOx sensors in OBD-II diagnostic gateway with minimal PCB area. IC Role / Device Role / Timing Role: Fixed-output LDO providing clean, stable 3.3 V rail for analog front-end and ADC reference. Use Value: 250 mV dropout and 2.75 V minimum input ensure uninterrupted sensor data acquisition during cranking transients. |
| Infotainment System Power Sequencing | RKE Receiver Module |
|
Use Scenario: Pre-regulating 12 V battery to 3.3 V for USB-C PD controller and display interface ICs. IC Role / Device Role / Timing Role: Standby LDO activated early in boot sequence to initialize power management ICs. Use Value: Enable pin allows precise sequencing control; <1 µA off-state current prevents leakage in deep-sleep states. |
Use Scenario: Powering ASK/OOK RF receiver IC and wake-up timer in passive entry system. IC Role / Device Role / Timing Role: Always-on LDO maintaining real-time clock and RF front-end readiness. Use Value: ±2% output accuracy ensures consistent RF gain and demodulation performance across temperature and aging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73333PDBVR | 3.3 V, 300 mA, 60 µA IQ, SOT-23-5, not AEC-Q100 qualified | Lacks cranking support (min VIN = 1.4 V but no extended low-VIN regulation), no thermal shutdown | Use only in non-automotive, cost-sensitive consumer designs with stable input and light load. |
| TPS7B8133QDGNRQ1 | 3.3 V, 150 mA, 20 µA IQ, MSOP-8, AEC-Q100 Grade 1, 3.0–40 V input | Higher IQ than TLS810B1, wider input range but no sub-3 V cranking capability (min VIN = 3.0 V) | Select when higher output current or smaller footprint is prioritized over ultra-low IQ and cranking margin. |
Compared with TLV73333PDBVR and TPS7B8133QDGNRQ1, the TLS810B1EJV33XUMA1 uniquely combines AEC-Q100 qualification, 2.75 V cranking support, and 5.5 µA quiescent current-making it optimal for battery-permanent automotive nodes requiring multi-year standby and cold-crank resilience.
Availability
TLS810B1EJV33XUMA1 is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power sequencing, RKE receivers, and on-board sensor hubs requiring stable component supply across extended temperature and lifecycle demands.
Supply support for TLS810B1EJV33XUMA1 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 belongs to Infineon's OPTIREG™ linear regulator product line, engineered specifically for automotive battery-connected applications demanding ultra-low IQ, cranking resilience, and AEC-Q100 reliability.
FAQ
What is the minimum input voltage required for regulation during cranking?
The TLS810B1EJV33XUMA1 maintains regulation down to 2.75 V input-verified per datasheet Section 3.2, Table 4 (VI,ext min). This enables continuous operation during engine cranking events where battery voltage typically sags to 3–4 V, ensuring ECU and sensor functionality remains uninterrupted.
Can the device operate without an external output capacitor?
No. A minimum 1 µF ceramic output capacitor with ≤100 Ω ESR is mandatory for stability, as specified in Section 3.2, Table 4 (CQ and ESR(CQ)). Omitting it risks oscillation or thermal runaway under load, and violates functional range compliance per datasheet requirements.
Is the exposed thermal pad electrically connected internally?
Yes-the exposed pad is internally connected to GND and must be soldered to a GND copper area on the PCB. Datasheet Section 2.2 explicitly states "Pad – Exposed pad Connect to heatsink area. Connect to GND." Failure to do so degrades thermal performance and may trigger premature thermal shutdown.
Does the EN pin require an external pull-up resistor?
No. The EN pin has an integrated pull-down resistor (per Section 2.2), ensuring default-off behavior at power-up. An external pull-up is optional only if active-high enable from an open-drain source is needed; for standard CMOS logic drive, direct connection suffices.
TLS810B1EJV33XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width) 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-DSO-8
TLS810B1EJV33XUMA1 FAQ
1.How can I place an order for TLS810B1EJV33XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLS810B1EJV33XUMA1 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 TLS810B1EJV33XUMA1 reliable?
The price and inventory of TLS810B1EJV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS810B1EJV33XUMA1 is usually 5 days.
3.What payment methods are accepted for TLS810B1EJV33XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS810B1EJV33XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLS810B1EJV33XUMA1?
TLS810B1EJV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLS810B1EJV33XUMA1 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 TLS810B1EJV33XUMA1?
For technical support, including TLS810B1EJV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS810B1EJV33XUMA1 requirements.
6.How does Aetrix verify that TLS810B1EJV33XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLS810B1EJV33XUMA1 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 TLS810B1EJV33XUMA1 meets industry standards.
7.What is the process for return or replacement of TLS810B1EJV33XUMA1?
All TLS810B1EJV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS810B1EJV33XUMA1, 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 TLS810B1EJV33XUMA1 part is unused and in its original packaging.
Return procedure for TLS810B1EJV33XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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