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Infineon Technologies TLE4253GSXUMA1
- Part No.:
- TLE4253GSXUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4253GSXUMA1.pdf
- Description:
- IC REG LINEAR POS ADJ 250MA DSO8
- Quantity:
- Payment:
- Shipping:
Inventory:2,822
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Product details
Overview
TLE4253GSXUMA1 from Infineon is a monolithic low-dropout voltage tracking regulator in PG-DSO-8 package, designed to precisely replicate an external reference voltage (2.0 V–40 V) at its output with ±1.5% tracking tolerance. It delivers up to 250 mA output current, supports input voltages from −42 V to +45 V, and operates across −40°C to +150°C junction temperature-enabling robust power supply for automotive engine sensors under harsh conditions.
For engineers reviewing the TLE4253GSXUMA1 datasheet, TLE4253GSXUMA1 pinout, TLE4253GSXUMA1 application, or TLE4253GSXUMA1 equivalent, key selection criteria include its adjustable tracking ratio, reverse polarity protection, shutdown-enabled ultra-low OFF-mode current (<10 µA), ceramic capacitor stability, and AEC-Q100 qualification for automotive use.
Technical Context
The TLE4253GSXUMA1 implements a precision error amplifier with inverting feedback (FB pin) and a combined adjust/enable (EN/ADJ) input that directly accepts the reference voltage. Its internal saturation control and thermal shutdown circuitry activate at Tj ≥ 165°C, while short-circuit protection limits output current during GND or battery faults.
It operates as a proportional tracker: output voltage VQ = VADJ/EN × (1 + R1/R2) when using external divider on FB, or VQ ≤ VADJ/EN when FB is tied directly to Q. Dropout voltage remains below 0.5 V at 250 mA load, and input-to-output line regulation is ±0.02%/V over VI = 3.5–40 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output tracking tolerance | ±1.5% max - ensures precise replication of reference voltage under load and temperature variation |
| Max output current | 250 mA - sufficient to power multiple automotive sensors or ECUs without external boost |
| Input voltage range | −42 V to +45 V - supports reverse battery connection and load-dump transients in 12 V/24 V systems |
| Quiescent current (OFF mode) | <10 µA - enables always-on subsystems with minimal battery drain |
| Operating junction temp | −40°C to +150°C - validated for under-hood engine management applications |
| Output capacitor support | 10 µF ceramic (ESR ≤5 Ω) - eliminates need for bulk electrolytic capacitors, improving reliability |
| AEC-Q100 qualification | Grade 0 (−40°C to +150°C) - certified for safety-critical automotive electronics |
Pinout & Package
Package: PG-DSO-8 (exposed pad not present in GS variant; this part is TLE4253GSXUMA1, standard DSO-8 without EP). Thermal resistance RthJSP = 39 K/W; footprint-only RthJA = 150 K/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Q) | Tracker output | Delivers regulated output voltage; requires local 10 µF ceramic capacitor to GND |
| 2, 3, 6, 7 (GND) | Ground reference | Four dedicated GND pins reduce impedance; must be interconnected and connected to PCB heatsink area |
| 4 (FB) | Feedback input | Inverting input of internal error amplifier; connect directly to Q for VQ ≤ VADJ/EN, or via divider for scaling |
| 5 (EN/ADJ) | Adjust / enable input | Accepts reference voltage (2.0–40 V); high = active, low = shutdown; defines tracking baseline |
| 8 (I) | Supply input | Connects to main battery rail; requires local decoupling capacitor near IC terminals |
Key Features
| Feature | Design Value |
|---|---|
| Reverse polarity protection | Withstands −42 V input without damage - eliminates need for external series diode in battery-connected designs |
| Short-circuit protection | Auto-limits output current during GND or battery shorts - prevents thermal runaway and system failure |
| Low thermal resistance package | RthJSP = 39 K/W - enables 250 mA operation at full temperature range without external heatsink |
| Stable with ceramic capacitors | Validated for 10 µF X7R/X5R ceramics (ESR ≤5 Ω) - improves long-term reliability vs. electrolytics |
| Combined EN/ADJ function | Single-pin interface for both voltage reference and enable control - reduces BOM count and routing complexity |
Applications
| Engine Control Unit Sensor Supply | Automotive Body Control Module |
|---|---|
|
Use Scenario: Powering crankshaft/camshaft position sensors in gasoline/diesel engine management systems exposed to under-hood temperatures up to 150°C and load-dump transients. IC Role / Device Role / Timing Role: Precision voltage tracker replicating main ECU's 5 V reference to ensure sensor signal integrity and ADC accuracy. Use Value: ±1.5% tracking tolerance and −42 V to +45 V input range maintain stable bias under cranking, cold start, and alternator surge conditions. |
Use Scenario: Supplying door module microcontrollers and LIN transceivers in 12 V vehicle architectures with intermittent sleep/wake cycles. IC Role / Device Role / Timing Role: Low-quiescent-current (≤10 µA) tracking regulator enabling always-on wake-up capability without excessive battery drain. Use Value: Shutdown via EN/ADJ pin reduces standby current by >99.9% versus linear regulators without integrated enable. |
| Transmission Control System | Advanced Driver Assistance Sensors |
|
Use Scenario: Providing regulated bias to transmission solenoid drivers and pressure sensors operating in high-vibration, high-temperature environments. IC Role / Device Role / Timing Role: Fault-tolerant voltage tracker with short-circuit and overtemperature protection to sustain operation during gear-shift surges. Use Value: Integrated protection eliminates need for discrete current-limiting resistors or thermal fuses, reducing board space and cost. |
Use Scenario: Powering radar front-end ICs and camera image sensors requiring clean, stable supply referenced to main domain controller's voltage rail. IC Role / Device Role / Timing Role: High-accuracy tracking regulator maintaining tight voltage alignment between distributed subsystems. Use Value: 0.5 V dropout at 250 mA allows operation down to 3.5 V input - critical for post-cranking brownout resilience. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage tracking regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV71725PDBVR | Fixed 2.5 V LDO (not tracking); 150 mA output; no reverse polarity or short-circuit protection | Limited to fixed-voltage point-of-load use; unsuitable for reference-following or automotive fault environments | Select only for non-automotive, low-power, fixed-rail applications where tracking and ruggedness are unnecessary |
| MAX1725EUT+T | Fixed 3.3 V LDO; 250 mA; no tracking, no reverse polarity rating; max VI = 28 V | Cannot track external references; insufficient input range for 24 V commercial vehicles or load-dump survival | Use only in benign 12 V industrial systems with stable input and no reverse-battery risk |
Compared with TLV71725PDBVR and MAX1725EUT+T, the TLE4253GSXUMA1 uniquely combines adjustable tracking, −42 V reverse tolerance, AEC-Q100 Grade 0 qualification, and integrated fault protections-making it the sole option for demanding automotive reference-following power rails.
Availability
TLE4253GSXUMA1 is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control systems, and ADAS sensor power supplies requiring stable component supply across automotive production lifecycles.
Supply support for TLE4253GSXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and industrial control solutions, with global manufacturing and automotive qualification infrastructure.
The TLE4253 belongs to Infineon's OPTIREG™ linear product line, engineered specifically for high-reliability automotive power supply applications where precision tracking, fault resilience, and extended temperature operation are mandatory.
FAQ
What is the minimum reference voltage supported at the EN/ADJ pin?
The TLE4253GSXUMA1 supports a minimum reference voltage of 2.0 V at the EN/ADJ pin, as specified in its functional range (Table 2, P_4.2.5). Operation below this voltage disables regulation and places the device in shutdown mode. This threshold ensures stable error amplifier biasing and accurate tracking across temperature.
Can the TLE4253GSXUMA1 be used without an external voltage divider?
Yes - when FB is connected directly to Q, the device operates in unity-gain tracking mode (VQ = VADJ/EN). This configuration supports output voltages equal to or lower than the reference. An external divider is required only when VQ must exceed VADJ/EN, per the feedback equation in Section 5 of the datasheet.
Is the PG-DSO-8 package of TLE4253GSXUMA1 lead-free and RoHS compliant?
Yes - the TLE4253GSXUMA1 is a green product fully compliant with RoHS Directive 2011/65/EU. Infineon confirms lead-free terminations, halogen-free molding compound, and compliance with JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) for surface-mount assembly.
How does the TLE4253GSXUMA1 respond to a short circuit at the output?
Under output short-circuit conditions, the TLE4253GSXUMA1 limits current to approximately 350 mA (typical) and activates thermal shutdown if junction temperature exceeds 165°C. After fault removal and cooldown, the device automatically recovers - no latch or manual reset is required, per protection circuit behavior described in Section 3.1 and Figure 1.
TLE4253GSXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- OPTIREG™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- Tracking
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 200mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
TLE4253GSXUMA1 FAQ
1.How can I place an order for TLE4253GSXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4253GSXUMA1 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 TLE4253GSXUMA1 reliable?
The price and inventory of TLE4253GSXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4253GSXUMA1 is usually 5 days.
3.What payment methods are accepted for TLE4253GSXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4253GSXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4253GSXUMA1?
TLE4253GSXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4253GSXUMA1 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 TLE4253GSXUMA1?
For technical support, including TLE4253GSXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4253GSXUMA1 requirements.
6.How does Aetrix verify that TLE4253GSXUMA1 is sourced from the original manufacturer or authorized distributors?
All TLE4253GSXUMA1 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 TLE4253GSXUMA1 meets industry standards.
7.What is the process for return or replacement of TLE4253GSXUMA1?
All TLE4253GSXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4253GSXUMA1, 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 TLE4253GSXUMA1 part is unused and in its original packaging.
Return procedure for TLE4253GSXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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