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Infineon Technologies TLS820D0ELV50XUMA1
- Part No.:
- TLS820D0ELV50XUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLS820D0ELV50XUMA1.pdf
- Description:
- IC REG LINEAR 5V 200MA SSOP-14-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,495
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Product details
Overview
TLS820D0ELV50XUMA1 from Infineon Technologies is a fixed-output 5 V, 200 mA automotive-grade low dropout linear voltage regulator in PG-SSOP-14 package. It delivers ±2 % output voltage accuracy, 70 mV typical dropout at 100 mA, 40 µA quiescent current, and integrated enable, reset, and overtemperature protection - designed for permanent battery-connected systems such as engine control units and body electronics.
For engineers reviewing the TLS820D0ELV50XUMA1 datasheet, TLS820D0ELV50XUMA1 pinout, TLS820D0ELV50XUMA1 application, or TLS820D0ELV50XUMA1 equivalent, key selection criteria include cranking-mode operation down to 3 V input, ceramic-capacitor stability with only 1 µF output, programmable reset delay (8.5 ms / 16.5 ms), adjustable reset threshold (down to 2.50 V), and AEC-Q100 qualification for automotive reliability.
Technical Context
The TLS820D0ELV50XUMA1 implements a high-stability regulation loop optimized for low-ESR ceramic capacitors, enabling stable operation with just 1 µF output capacitance. Its architecture integrates bandgap reference, current limiting, thermal shutdown, undervoltage reset, and programmable power-on reset timing via DT pin selection.
It supports extended input range (3.0–40 V) to maintain regulation during automotive cranking events, and features an internal pull-down on EN and DT pins plus open-drain RO output with integrated pull-up to Q. The RADJ pin allows external resistor divider adjustment of reset threshold below the default 4.5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2 % - ensures precise MCU core/peripheral supply under load and temperature variation. |
| Max Output Current | 200 mA - sufficient for microcontrollers, sensors, and CAN transceivers in distributed automotive nodes. |
| Dropout Voltage | 70 mV typ. @ 100 mA - enables regulation down to 5.07 V input, critical for cold-cranking survival (≥3 V input supported). |
| Quiescent Current | 40 µA typ. - minimizes standby power loss in always-on vehicle subsystems like alarm controllers. |
| Input Voltage Range | 3.0 V to 40 V - covers full automotive battery range including load dump (40 V transient) and cranking (≤3.5 V). |
| Reset Threshold | Adjustable down to 2.50 V via RADJ - allows system-level brown-out detection aligned with host processor requirements. |
| Reset Delay | Programmable 8.5 ms or 16.5 ms via DT pin - prevents spurious resets during power-rail settling after ignition. |
Pinout & Package
Package: PG-SSOP-14 (exposed thermal pad), RoHS-compliant, AEC-Q100 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (I) | Input Supply | Main VIN connection; requires local 100 nF ceramic decoupling to GND for EMI suppression. |
| 3 (EN) | Enable Control | Active-high logic input with internal pull-down; enables regulator when ≥2.0 V applied. |
| 5 (GND) | Ground Reference | Primary return path for input, output, and internal circuitry; must connect to low-impedance ground plane. |
| 8 (RADJ) | Reset Threshold Adjustment | Analog input for external resistor divider; sets reset activation point from 2.50 V to 4.5 V. |
| 9 (DT) | Reset Timing Selection | Digital input selecting 8.5 ms or 16.5 ms power-on reset delay; internal pull-down defaults to short delay. |
| 11 (RO) | Reset Open-Drain Output | Active-low reset signal with internal pull-up to Q; sinks current when output voltage falls below threshold. |
| 14 (Q) | Regulated Output | 5 V regulated supply; requires ≥1 µF ceramic capacitor with ≤100 Ω ESR connected close to pin. |
| Exposed Pad | Thermal & Electrical Ground | Must be soldered to PCB copper pour for thermal dissipation and noise reduction; electrically tied to GND. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 40 µA typical enables >10-year battery life in always-on automotive modules without wake-up leakage penalty. |
| Ceramic-capacitor stability | Stable with 1 µF/≤100 Ω ESR output capacitor - eliminates need for costly tantalum or aluminum electrolytics. |
| Programmable reset delay | Two discrete delay options (8.5 ms / 16.5 ms) selected by single DT pin - simplifies BOM vs. trimming resistors. |
| Adjustable reset threshold | Configurable from 2.50 V to 4.5 V via RADJ - aligns reset behavior with diverse MCU VDD minima and system brown-out policies. |
| Extended cranking support | Operates down to 3.0 V input - sustains regulation through engine start events where battery dips to 3.2 V or lower. |
Applications
| Engine Control Unit (ECU) Power Management | Body Control Module (BCM) Sensor Interface |
|---|---|
Use Scenario: Supplies 5 V to microcontroller, CAN transceiver, and analog front-end in gasoline/diesel ECUs exposed to harsh transients and cranking. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, monitored 5 V rail with reset signaling for safe MCU boot and fault recovery. Use Value: Maintains regulation at 3.0 V input during cranking and survives 40 V load dump; reset output coordinates firmware initialization sequence. | Use Scenario: Powers door lock actuators, interior lighting drivers, and LIN transceivers in BCMs requiring low standby current and robust brown-out handling. IC Role / Device Role / Timing Role: Always-on LDO with programmable reset delay and adjustable threshold to match multi-rail system sequencing. Use Value: 40 µA IQ extends vehicle-off battery life; RADJ pin enables precise alignment with 3.3 V MCU reset thresholds across production variance. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Automotive Infotainment Power Sequencing |
Use Scenario: Provides stable 5 V to image sensor and ISP in rear-view or surround-view cameras mounted near hot engine compartments. IC Role / Device Role / Timing Role: Thermally robust LDO with overtemperature shutdown and ceramic-capacitor compatibility for compact, high-density PCB layouts. Use Value: Exposed thermal pad enables direct heatsink attachment; 150 °C max junction temperature supports under-hood deployment. | Use Scenario: Generates controlled 5 V supply for audio DSP, display controller, and USB PHY in head units with strict power-up timing requirements. IC Role / Device Role / Timing Role: Regulator with dual-reset-delay option ensures reliable boot before secondary DC-DC converters activate. Use Value: DT pin selection avoids external timing components; RO output synchronizes with SoC reset input for deterministic startup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA output, 120 mV dropout @150 mA, no reset or enable, SOT-23-5 package | Lacks integrated reset, enable, and programmable delay; suitable only for non-safety-critical, space-constrained consumer designs | Select only if reset supervision and automotive qualification are unnecessary and board area is primary constraint. |
| MAX1725EUT50+T | 200 mA output, 150 mV dropout @100 mA, fixed 5 V, no RADJ/DT pins, SOT-23-5 | No adjustable reset threshold or delay; lacks AEC-Q100 qualification; limited thermal performance (no exposed pad) | Acceptable for industrial prototypes but not for production automotive use due to missing qualification and thermal derating capability. |
Compared with TLV73350PDBVR and MAX1725EUT50+T, TLS820D0ELV50XUMA1 uniquely combines AEC-Q100 qualification, cranking-range operation (3–40 V), ceramic-capacitor stability, and fully configurable reset functionality - making it the only choice for safety-relevant automotive power domains requiring guaranteed startup behavior and long-term reliability.
Availability
TLS820D0ELV50XUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and infotainment head units requiring stable component supply across automotive production lifecycles.
Supply support for TLS820D0ELV50XUMA1 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 security solutions, with global manufacturing and quality certification to IATF 16949.
The TLS820D0 series belongs to Infineon's automotive LDO portfolio, engineered specifically for permanent-battery-supplied vehicle subsystems demanding ultra-low IQ, cranking resilience, and integrated functional safety features like reset supervision and thermal shutdown.
FAQ
What is the minimum input voltage required for regulation at full 200 mA load?
The TLS820D0ELV50XUMA1 maintains regulation down to 3.0 V input across its full operating temperature range (−40 °C to +150 °C), though output current capability decreases as input approaches dropout. At 200 mA load, minimum input is 5.07 V (5.0 V + 70 mV dropout); however, the extended functional range permits operation as low as 3.0 V with reduced output current - verified per Section 4.2.3 of the datasheet.
Can the reset threshold be set below 2.50 V?
No. The datasheet specifies 2.50 V as the absolute lower limit for adjustable reset threshold via the RADJ pin (Section 5.7, Table 9). This limit is enforced by internal reference design and cannot be exceeded without violating functional specifications or risking unreliable reset assertion.
Is the exposed thermal pad electrically isolated?
No. The exposed pad is internally connected to GND and must be soldered to a PCB copper area tied to the main ground plane. It serves both thermal conduction and electrical grounding functions - leaving it unconnected degrades thermal performance and may cause instability or overtemperature shutdown.
Does the device require an input capacitor?
Yes. A 100 nF ceramic capacitor is recommended between pin 1 (I) and GND, placed as close as possible to the IC terminals (Section 6.2.1). This mitigates high-frequency line impedance and suppresses EMI from upstream switching converters or battery transients - omission risks instability or degraded transient response.
TLS820D0ELV50XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 14-LSSOP (0.154", 3.90mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.34V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 5 µA
- Current - Supply (Max):
- 80 µA
- PSRR:
- 59dB (100Hz)
- Control Features:
- Delay, Enable, Reset, Watchdog
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SSOP-14-5
TLS820D0ELV50XUMA1 FAQ
1.How can I place an order for TLS820D0ELV50XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLS820D0ELV50XUMA1 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 TLS820D0ELV50XUMA1 reliable?
The price and inventory of TLS820D0ELV50XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLS820D0ELV50XUMA1 is usually 5 days.
3.What payment methods are accepted for TLS820D0ELV50XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLS820D0ELV50XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLS820D0ELV50XUMA1?
TLS820D0ELV50XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLS820D0ELV50XUMA1 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 TLS820D0ELV50XUMA1?
For technical support, including TLS820D0ELV50XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLS820D0ELV50XUMA1 requirements.
6.How does Aetrix verify that TLS820D0ELV50XUMA1 is sourced from the original manufacturer or authorized distributors?
All TLS820D0ELV50XUMA1 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 TLS820D0ELV50XUMA1 meets industry standards.
7.What is the process for return or replacement of TLS820D0ELV50XUMA1?
All TLS820D0ELV50XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLS820D0ELV50XUMA1, 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 TLS820D0ELV50XUMA1 part is unused and in its original packaging.
Return procedure for TLS820D0ELV50XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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