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Infineon Technologies TLE4253GSXUMA3
- Part No.:
- TLE4253GSXUMA3
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4253GSXUMA3.pdf
- Description:
- IC REG LINEAR POS ADJ 250MA DSO8
- Quantity:
- Payment:
- Shipping:
Inventory:2,873
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Product details
Overview
TLE4253GSXUMA3 from Infineon is a monolithic high-precision voltage tracking regulator in PG-DSO-8 package, designed to replicate an external reference voltage with ±1.5% tracking tolerance across automotive temperature and load conditions. It delivers up to 250 mA output current, supports input voltages from −42 V to +45 V, and operates with ceramic output capacitors as low as 10 µF. Its combined EN/ADJ pin enables precise voltage scaling and shutdown control in engine management sensor supplies.
For engineers reviewing the TLE4253GSXUMA3 datasheet, TLE4253GSXUMA3 pinout, TLE4253GSXUMA3 application, or TLE4253GSXUMA3 equivalent, key selection criteria include tracking accuracy vs. reference voltage, dropout behavior under 3.5 V minimum input, thermal resistance (RthJSP = 39 K/W), short-circuit and reverse-polarity protection, and AEC-Q100 qualification for under-hood deployment.
Technical Context
The TLE4253GSXUMA3 implements a precision error amplifier with inverting feedback (FB pin) and a high-side pass transistor controlled by saturation logic. Tracking operation is defined by the relationship VQ = VADJ/EN × (1 + R1/R2) when using external dividers, or VQ ≤ VADJ/EN when FB is directly connected to Q - enabling both step-down and proportional step-up configurations.
It integrates thermal shutdown, short-circuit protection to GND and battery, and reverse polarity immunity. The device draws only 30 µA quiescent current in OFF mode and maintains regulation down to 3.5 V input while sustaining 250 mA load at junction temperatures up to 150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Tracking tolerance | ±1.5% max over −40°C to 150°C; ensures stable sensor biasing despite reference drift. |
| Output current | 250 mA min; sufficient to power multiple automotive sensors (e.g., MAP, crankshaft position) without external buffering. |
| Input voltage range | −42 V to +45 V; withstands load dump, cold crank, and reverse battery events per ISO 7637-2. |
| Min. reference voltage | 2.0 V; allows compatibility with low-voltage microcontroller references or precision voltage sources. |
| Quiescent current (OFF) | 30 µA typ.; enables long-term battery monitoring in always-on vehicle modules. |
| Thermal resistance (J–SP) | 39 K/W; enables reliable operation on standard FR4 PCBs without dedicated heatsinks. |
| Output capacitor | 10 µF ceramic min (ESR ≤ 5 Ω); eliminates need for tantalum or electrolytic capacitors. |
Pinout & Package
Package: PG-DSO-8 (no exposed pad), 8-pin surface-mount SOIC variant with integrated thermal pad connection via pins 2, 3, 6, and 7 tied to GND. Pin 1 is Q (tracker output), pin 4 is FB (feedback input), pin 5 is EN/ADJ (combined enable and reference input), and pin 8 is I (supply input).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Q) | Tracker output | Regulated output node; must be decoupled with ≥10 µF ceramic cap near IC terminals. |
| 2, 3, 6, 7 (GND) | Ground reference | Low-inductance return path; all four pins must be connected to PCB ground plane for thermal and EMI performance. |
| 4 (FB) | Inverting feedback input | Connects directly to Q for unity-gain tracking or to resistor divider for scaled output; sets regulation point. |
| 5 (EN/ADJ) | Enable & reference input | Active-high enable; reference voltage applied here defines output tracking target (min 2.0 V). |
| 8 (I) | Supply input | Main power rail input; requires local 100 nF ceramic bypass cap to suppress line transients. |
Key Features
| Feature | Design Value |
|---|---|
| High-accuracy voltage tracking | ±1.5% tolerance over full temp/load range ensures consistent sensor excitation independent of reference drift. |
| Flexible output scaling | Supports both VOUT ≤ VREF (direct FB–Q tie) and VOUT > VREF (resistor divider on FB) without external op-amps. |
| Automotive-grade protection | Integrated reverse polarity, short-to-battery, short-to-GND, and overtemperature protection eliminate need for discrete protection circuitry. |
| Ultra-low OFF-mode current | 30 µA typical shutdown current enables use in battery-sensitive applications like telematics wake-up circuits. |
| Ceramic-capacitor stability | Stable with 10 µF/≤5 Ω ESR ceramic output caps - reduces BOM cost, size, and failure risk vs. electrolytics. |
Applications
| Engine Control Unit Sensor Supply | Body Control Module Voltage Reference |
|---|---|
|
Use Scenario: Powers analog pressure and temperature sensors in engine bay under wide ambient temperature and supply voltage fluctuations. IC Role / Device Role / Timing Role: Precision voltage tracker replicating main ECU regulator's 5 V output to ensure sensor signal integrity. Use Value: Maintains ±1.5% tracking accuracy from −40°C to 150°C, eliminating calibration drift caused by reference source variation. |
Use Scenario: Supplies stable bias voltage to Hall-effect switches and LIN transceivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Low-quiescent-current tracking regulator enabling always-on functionality with <30 µA shutdown draw. Use Value: Enables battery runtime extension in sleep mode while retaining fast wake-up response via EN/ADJ pin control. |
| Transmission Control Sensor Interface | ADAS Camera Power Sequencing |
|
Use Scenario: Delivers regulated voltage to gear position and oil temperature sensors exposed to mechanical vibration and thermal cycling. IC Role / Device Role / Timing Role: Robust linear tracker with reverse-polarity and short-circuit protection for harsh transmission environments. Use Value: Survives −42 V reverse battery events and 45 V load dump pulses without latch-up or damage. |
Use Scenario: Provides sequenced, tracked bias to image sensor analog front-end during camera boot and standby transitions. IC Role / Device Role / Timing Role: Dual-function EN/ADJ pin enables synchronized activation with system controller and precise voltage scaling. Use Value: Eliminates need for separate enable logic and voltage-setting resistors, reducing component count in space-constrained modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage tracking regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV71728PDQNR | Fixed 2.8 V LDO (not tracking); 150 mA output; no reverse polarity or short-to-battery protection. | Limited to fixed-output systems; unsuitable for reference-following or automotive fault environments. | Select only for non-automotive, low-power, fixed-VOUT designs where tracking and robustness are not required. |
| MAX1725EUT+T | Adjustable LDO (not tracking); 200 mA; no AEC-Q100 qualification; lacks thermal/short-circuit protection. | Requires external feedback network; not validated for automotive temperature or reliability requirements. | Use only in industrial or consumer applications with benign supply conditions and no safety-critical constraints. |
Compared with TLV71728PDQNR and MAX1725EUT+T, the TLE4253GSXUMA3 uniquely combines precision tracking, AEC-Q100 qualification, integrated fault protection, and wide-input capability - making it the sole choice for automotive sensor biasing where reference fidelity and system resilience are mandatory.
Availability
TLE4253GSXUMA3 is available at Aetrix Electronics and suitable for engine management systems, body control modules, and ADAS camera power supplies requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.
Supply support for TLE4253GSXUMA3 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 quality certification aligned to IATF 16949.
The TLE4253 belongs to Infineon's OPTIREG™ linear regulator family, engineered specifically for automotive subsystems requiring high-accuracy voltage replication, fault resilience, and extended temperature operation - especially in engine, transmission, and chassis control domains.
FAQ
What is the minimum input voltage required for regulation?
The TLE4253GSXUMA3 requires a minimum input voltage of 3.5 V to maintain regulation, defined as VI ≥ VQ + Vdr, where Vdr is the dropout voltage. At 250 mA load and 25°C, typical dropout is 0.45 V; thus, for a 5 V output, input must exceed 5.45 V. This ensures stable tracking even during cold-crank battery dips.
Can the output voltage be set higher than the reference voltage?
Yes - by connecting a resistor divider between FB and GND, the internal error amplifier compares a fraction of VQ to VADJ/EN, enabling VQ = VADJ/EN × (1 + R1/R2). For example, with VADJ/EN = 2.5 V and R1/R2 = 1, VQ = 5.0 V. Direct FB–Q connection restricts output to ≤ reference voltage.
Is external compensation required for stability?
No external compensation is needed. The TLE4253GSXUMA3 is internally compensated and stable with 10 µF ceramic output capacitors having ESR ≤ 5 Ω at 10 kHz. Adding series resistance or ferrite beads on the output may degrade phase margin and is not recommended unless validated per application note AN2019-07.
Does the device support reverse battery protection without external components?
Yes - the TLE4253GSXUMA3 includes integrated reverse polarity protection and can withstand −42 V applied to the I pin without damage or latch-up. This eliminates the need for external MOSFETs or diodes in battery-connected applications, reducing board area and BOM cost while maintaining AEC-Q100 compliance.
TLE4253GSXUMA3 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:
- Discontinued at Digi-Key
- 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
TLE4253GSXUMA3 FAQ
1.How can I place an order for TLE4253GSXUMA3 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4253GSXUMA3 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 TLE4253GSXUMA3 reliable?
The price and inventory of TLE4253GSXUMA3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4253GSXUMA3 is usually 5 days.
3.What payment methods are accepted for TLE4253GSXUMA3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4253GSXUMA3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4253GSXUMA3?
TLE4253GSXUMA3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4253GSXUMA3 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 TLE4253GSXUMA3?
For technical support, including TLE4253GSXUMA3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4253GSXUMA3 requirements.
6.How does Aetrix verify that TLE4253GSXUMA3 is sourced from the original manufacturer or authorized distributors?
All TLE4253GSXUMA3 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 TLE4253GSXUMA3 meets industry standards.
7.What is the process for return or replacement of TLE4253GSXUMA3?
All TLE4253GSXUMA3 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4253GSXUMA3, 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 TLE4253GSXUMA3 part is unused and in its original packaging.
Return procedure for TLE4253GSXUMA3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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