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Infineon Technologies TLS810D1EJV33XUMA1
- Part No.:
- TLS810D1EJV33XUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLS810D1EJV33XUMA1.pdf
- Description:
- IC REG LIN 3.3V 100MA 8DSO E-PAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,067
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Product details
Overview
TLS810D1EJV33XUMA1 from Infineon is an AEC-Q100 qualified ultra-low-quiescent-current linear voltage regulator delivering a fixed 3.3 V output at up to 100 mA, with 9 µA quiescent current, 2.75–42 V input range, and 250 mV typical dropout at full load-designed for permanent battery-connected automotive ECUs requiring cranking operation support.
For engineers reviewing the TLS810D1EJV33XUMA1 datasheet, TLS810D1EJV33XUMA1 pinout, TLS810D1EJV33XUMA1 application, or TLS810D1EJV33XUMA1 equivalent, this device offers verified reset supervision, enable control, thermal shutdown, and current limiting-critical for infotainment, gateway, RKE, and sensor supply designs where low-power reliability and AEC compliance are mandatory.
Technical Context
The TLS810D1EJV33XUMA1 implements a bandgap-referenced linear regulation architecture with fast transient response enabled by a single 1 µF ceramic output capacitor. Its tracking region begins at 2.75 V input, supporting stable 3.3 V output during cold-cranking (e.g., <6 V battery dips).
Internal protection includes foldback current limiting (typ. 130 mA trip), overtemperature shutdown (>160 °C junction), and open-collector reset output with adjustable delay via external capacitor on pin D. Enable logic features integrated pull-down for default-off operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% - ensures precise MCU/Sensor rail tolerance without external feedback. |
| Quiescent Current | 9 µA typ. - enables >10-year battery standby in always-on automotive modules. |
| Input Voltage Range | 2.75 V to 42 V - supports start-stop, cranking (down to 2.75 V), and load-dump (up to 42 V) without external protection. |
| Dropout Voltage | 250 mV typ. @ 100 mA - maintains regulation down to 3.55 V input, critical for low-VIN operation. |
| Reset Threshold | 2.904 V (±1.5%) - asserts reset when VOUT drops below threshold, with programmable delay via capacitor on pin D. |
| Enable Threshold | VIL ≤ 0.8 V, VIH ≥ 2.0 V - compatible with standard 3.3 V/5 V logic; internal pull-down ensures safe power-up state. |
| Thermal Shutdown | Activates >160 °C junction - protects against sustained overload or poor PCB heatsinking in enclosed ECUs. |
Pinout & Package
Package: PG-DSO-8 EP (exposed pad, RoHS-compliant, AEC-Q100 qualified). Exposed pad must be soldered to PCB GND plane for thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input | Main VIN connection; requires local 100 nF ceramic decoupling to GND for EMI suppression. |
| 3 (EN) | Enable | Active-high digital control; internal pull-down ensures default OFF; drives IC into <1 µA off-mode. |
| 4 (GND) | Ground | Power and signal reference; connects to exposed pad for thermal conduction and noise reduction. |
| 5 (D) | Reset Delay Timing | Capacitor connection point (0.1–100 nF) sets reset timeout; open if reset not used. |
| 6 (RO) | Reset Output | Open-collector, active-low reset signal with internal pull-up; asserts when VOUT < 2.904 V. |
| 8 (Q) | Output | Regulated 3.3 V supply; requires 1 µF ceramic capacitor (±30% tolerance, ≤100 mΩ ESR) at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low IQ Operation | 9 µA quiescent current enables >10-year battery life in always-on vehicle modules (e.g., RKE receivers). |
| Cranking-Compatible Regulation | Starts regulating at 2.75 V input and sustains 3.3 V output during engine cranking (≤6 V battery dips). |
| Integrated Reset Supervision | Programmable delay reset with ±1.5% threshold accuracy eliminates need for external supervisor IC. |
| Robust Fault Protection | Foldback current limit + thermal shutdown protect against short-circuit, overcurrent, and overheating failures. |
| Minimal External Components | Only two capacitors required (100 nF input, 1 µF output); no compensation network needed. |
Applications
| Infotainment Power Rail | Body Control Module Sensor Supply |
|---|---|
|
Use Scenario: Powering CAN transceivers, display controllers, and audio codecs in head units with direct battery connection. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying noise-sensitive digital subsystems while surviving load dump and cranking. Use Value: 9 µA IQ extends backup battery life; 42 V max input avoids need for upstream TVS; reset output synchronizes firmware boot. |
Use Scenario: Providing stable 3.3 V to ambient, humidity, and door position sensors in BCMs. IC Role / Device Role / Timing Role: Always-on sensor bias rail with guaranteed startup down to 2.75 V and thermal fault isolation. Use Value: Dropout of 250 mV at 100 mA ensures regulation during cold cranking; AEC-Q100 qualification validates long-term field reliability. |
| Remote Keyless Entry Receiver | Automotive Gateway Microcontroller Core |
|
Use Scenario: Powering sub-GHz RF receiver ICs and wake-up logic in passive entry systems. IC Role / Device Role / Timing Role: Ultra-low-IQ supply enabling multi-year coin-cell or battery operation with periodic wake-up. Use Value: 9 µA IQ directly translates to >12-year shelf life on CR2032; EN pin allows microcontroller-controlled deep-sleep sequencing. |
Use Scenario: Delivering core 3.3 V to ARM Cortex-M7 gateways managing CAN FD, Ethernet AVB, and LIN domains. IC Role / Device Role / Timing Role: Secondary regulated rail for MCU I/O and peripheral interfaces, decoupled from noisy main 5 V domain. Use Value: Reset output provides clean POR signal to MCU; 2% output accuracy meets ARM core voltage tolerance specs. |
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, 65 µA IQ, SOT-23-5, non-AEC-Q100 | Lacks AEC-Q100 qualification, reset, and cranking support; higher IQ limits battery life. | Use only in non-automotive, cost-sensitive industrial applications where qualification and ultra-low IQ are not required. |
| TPS7B8733QKVURQ1 | 3.3 V, 500 mA, 28 µA IQ, WSON-10, AEC-Q100, integrated watchdog | Higher IQ and current rating; adds watchdog but lacks programmable reset delay and smaller footprint. | Prefer when system requires watchdog monitoring or >100 mA load; accept 3× higher IQ penalty for added safety features. |
Compared with TLV73333PDBVR and TPS7B8733QKVURQ1, TLS810D1EJV33XUMA1 uniquely balances ultra-low 9 µA IQ, AEC-Q100 compliance, cranking capability, and integrated reset-making it optimal for battery-critical, space-constrained automotive nodes where every microamp and millivolt matters.
Availability
TLS810D1EJV33XUMA1 is available at Aetrix Electronics and suitable for automotive ECUs, on-board sensor supplies, infotainment systems, and RKE modules requiring stable component supply across extended temperature and voltage stress conditions.
Supply support for TLS810D1EJV33XUMA1 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 leader specializing in power management, automotive, and industrial control ICs, with global manufacturing and AEC-Q100 validation infrastructure.
This part belongs to the OPTIREG™ linear voltage regulator product line, engineered specifically for automotive power rails demanding ultra-low quiescent current, cranking resilience, and integrated functional safety features like reset and thermal shutdown.
FAQ
What is the minimum input voltage required for regulation at full 100 mA load?
The TLS810D1EJV33XUMA1 maintains regulation down to 2.75 V input across its entire operating range-including at 100 mA load-enabling reliable operation during severe battery cranking events. Below 2.75 V, output tracks input with reduced dropout margin, per the extended operating range specification.
How is the reset delay time configured, and what capacitor value achieves a 200 ms timeout?
Reset delay is set by connecting a ceramic capacitor between pin D and GND. A 47 nF capacitor yields approximately 200 ms delay, based on the internal 21 µA current source and RC timing equation (t ≈ C × 21 µA / 0.5 V). Values from 0.1 nF to 100 nF are supported.
Can the exposed thermal pad be left floating, or must it be connected to GND?
The exposed pad must be soldered to a PCB GND plane. It serves dual functions: thermal conduction (reducing RthJA by up to 116 K/W in optimized layouts) and electrical grounding for internal circuitry. Leaving it unconnected degrades thermal performance and may cause instability or premature thermal shutdown.
Does the device support reverse-polarity input protection, and what external components are required?
No internal reverse-polarity protection is provided. Per the datasheet, an external Schottky diode (anode to GND, cathode to pin I) is recommended for reverse-voltage protection up to –40 V. This diode must be placed before the 100 nF input capacitor to prevent damage during accidental battery reversal.
TLS810D1EJV33XUMA1 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
TLS810D1EJV33XUMA1 FAQ
1.How can I place an order for TLS810D1EJV33XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLS810D1EJV33XUMA1 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 TLS810D1EJV33XUMA1 reliable?
The price and inventory of TLS810D1EJV33XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS810D1EJV33XUMA1 is usually 5 days.
3.What payment methods are accepted for TLS810D1EJV33XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS810D1EJV33XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLS810D1EJV33XUMA1?
TLS810D1EJV33XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLS810D1EJV33XUMA1 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 TLS810D1EJV33XUMA1?
For technical support, including TLS810D1EJV33XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS810D1EJV33XUMA1 requirements.
6.How does Aetrix verify that TLS810D1EJV33XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLS810D1EJV33XUMA1 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 TLS810D1EJV33XUMA1 meets industry standards.
7.What is the process for return or replacement of TLS810D1EJV33XUMA1?
All TLS810D1EJV33XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS810D1EJV33XUMA1, 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 TLS810D1EJV33XUMA1 part is unused and in its original packaging.
Return procedure for TLS810D1EJV33XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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