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Infineon Technologies TLE4253EXUMA2
- Part No.:
- TLE4253EXUMA2
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
TLE4253EXUMA2.pdf
- Description:
- IC REG LIN POS ADJ 250MA 8DSO
- Quantity:
- Payment:
- Shipping:
Inventory:13,678
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Product details
Overview
TLE4253EXUMA2 from Infineon is a monolithic high-precision voltage tracking regulator in PG-DSO-8 exposed pad package, designed to replicate an external reference voltage (2.0–5.0 V) at its output with tight tolerance. It delivers up to 250 mA output current, supports input voltages from −42 V to +45 V, features low dropout operation, and integrates reverse polarity, short-circuit (to GND/battery), and overtemperature protection for engine control sensors.
For engineers reviewing the TLE4253EXUMA2 datasheet, TLE4253EXUMA2 pinout, TLE4253EXUMA2 application, or TLE4253EXUMA2 equivalent, this device is selected for automotive power supply tracking where precision, fault resilience, and thermal performance under wide temperature (−40°C to +150°C) and harsh voltage transients are critical.
Technical Context
The TLE4253EXUMA2 operates as a proportional tracking regulator: its output voltage follows an externally applied reference at the EN/ADJ pin, with gain = 1.0 ±0.5% across −40°C to +150°C junction temperature. The internal error amplifier compares feedback from FB to the reference, driving the pass transistor to maintain tracking accuracy.
It combines enable and adjust functions on a single pin (EN/ADJ), accepts reference voltages ≥2.0 V, and achieves stable regulation with ceramic output capacitors ≥10 µF and ESR ≤5 Ω. Shutdown mode reduces quiescent current to <10 µA, enabling battery-sensitive automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 250 mA max - sufficient to power multiple automotive sensors or small ECUs without external boost stages. |
| Input voltage range | −42 V to +45 V - withstands load dump, reverse battery, and cold crank conditions per ISO 7637-2 and ISO 16750-2. |
| Tracking accuracy | ±0.5% typ. - ensures output tracks reference voltage within 25 mV at 5 V ref, critical for ADC reference stability. |
| Quiescent current (OFF) | <10 µA - enables always-on sensor nodes with multi-year battery life in key-off states. |
| Thermal resistance (RthJC) | 9 K/W - achieved via exposed pad; allows >2 W continuous dissipation with 600 mm² PCB copper area. |
| Operating temperature | −40°C to +150°C junction - qualified per AEC-Q100 Grade 0, suitable for under-hood placement. |
| Output capacitor | ≥10 µF ceramic, ESR ≤5 Ω @ 10 kHz - eliminates need for tantalum or electrolytic capacitors, improving reliability. |
Pinout & Package
Package: PG-DSO-8 exposed pad (EP), RoHS-compliant, with thermal pad soldered to PCB ground plane for optimal heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Q) | Tracker output | Regulated output terminal; requires local 10 µF ceramic capacitor to GND for stability. |
| 2, 3, 7 (n.c.) | Not connected | No internal connection; must be externally tied to GND for mechanical and thermal integrity. |
| 4 (FB) | Feedback input | Inverting input of error amplifier; connect directly to Q for unity-gain tracking or via divider for gain >1. |
| 5 (EN/ADJ) | Enable / reference input | Active-high enable; reference voltage source (2.0–5.0 V) applied here sets output voltage proportionally. |
| 6 (GND) | Ground | Main signal and power return; connects internally to exposed pad; must be low-impedance PCB plane. |
| 8 (I) | Input supply | Primary power input; requires local ceramic decoupling capacitor near pin for transient immunity. |
| EP | Exposed thermal pad | Electrically connected to GND; mandatory for thermal performance-must be soldered to ≥300 mm² copper area. |
Key Features
| Feature | Design Value |
|---|---|
| Proportional tracking architecture | Output precisely mirrors external reference voltage (2.0–5.0 V) with ±0.5% gain error, eliminating need for trimming resistors. |
| Integrated fault protection | Reverse polarity, short-circuit to GND/battery, and overtemperature shutdown prevent field failures without external circuitry. |
| Low-quiescent shutdown | Sub-10 µA OFF-state current enables use in always-monitoring vehicle security or telematics modules. |
| Stable with ceramic capacitors | Eliminates reliance on aging-prone electrolytics; supports compact, high-reliability layouts in space-constrained modules. |
| Automotive qualification | AEC-Q100 Grade 0 certified with full production test coverage across temperature and voltage extremes. |
Applications
| Engine Control Sensors | Body Control Modules |
|---|---|
Use Scenario: Powering oxygen, knock, and MAP sensors in direct engine bay mounting. IC Role / Device Role / Timing Role: Voltage tracker replicating main ECU's 5 V reference to ensure sensor signal fidelity under thermal cycling and load dump. Use Value: Maintains ±0.5% output tracking across −40°C to +150°C, preventing sensor calibration drift during hot-soak conditions. |
Use Scenario: Supplying door module microcontrollers and LIN transceivers in battery-backed standby mode. IC Role / Device Role / Timing Role: Low-IQ tracking regulator enabling 5 V rail generation from 12 V battery while minimizing parasitic drain. Use Value: Sub-10 µA shutdown current extends vehicle battery life beyond 90 days in key-off state without relay intervention. |
| Advanced Driver Assistance Systems | Electric Power Steering |
Use Scenario: Providing stable 3.3 V supply to radar MCU and CAN transceiver from a 5 V master regulator. IC Role / Device Role / Timing Role: Precision tracking regulator maintaining voltage alignment between safety-critical subsystems and central domain controller. Use Value: Ensures synchronized ADC sampling and CAN timing by eliminating supply-induced jitter between co-located ICs. |
Use Scenario: Regulating gate driver supplies in EPS motor control units exposed to high ambient temperatures. IC Role / Device Role / Timing Role: High-thermal-performance linear tracker delivering 250 mA with RthJC = 9 K/W to sustain operation at 150°C junction. Use Value: Enables continuous torque assist without thermal derating, verified per ISO 26262 ASIL-B functional safety requirements. |
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 output, no tracking capability; 150 mA max; no reverse polarity or short-circuit-to-battery protection. | Limited to fixed-voltage point-of-load use; unsuitable for reference mirroring or automotive transients. | Select only for non-automotive, low-current, fixed-VOUT applications where cost and footprint outweigh protection needs. |
| MAX1725EUT+T | Adjustable LDO (1.22–5.0 V), 200 mA, no tracking function; lacks reverse polarity and battery short-circuit protection. | Requires external resistor network for setpoint; not validated to AEC-Q100; limited thermal robustness (RthJA > 200 K/W). | Use only in benign industrial environments where reference replication and automotive-grade fault coverage are unnecessary. |
Compared with TLV71725PDBVR and MAX1725EUT+T, the TLE4253EXUMA2 uniquely provides true voltage tracking, integrated automotive-grade protection, and AEC-Q100 qualification-making it the sole choice for safety-critical, reference-aligned power domains in engine and ADAS systems.
Availability
TLE4253EXUMA2 is available at Aetrix Electronics and suitable for engine control sensors, body control modules, advanced driver assistance systems, and electric power steering requiring stable component supply under automotive qualification and thermal stress.
Supply support for TLE4253EXUMA2 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, and industrial control ICs, with global manufacturing and quality certification aligned to IATF 16949.
The TLE4253EXUMA2 belongs to Infineon's OPTIREG™ linear family, engineered specifically for automotive voltage tracking applications where precision, fault resilience, and thermal performance under extreme conditions are mandatory.
FAQ
What is the minimum reference voltage required at the EN/ADJ pin?
The EN/ADJ pin requires a minimum reference voltage of 2.0 V to establish valid tracking operation. Below this threshold, regulation is not guaranteed, and the device may enter undefined behavior or disable. This value is specified across the full operating temperature range (−40°C to +150°C) and is validated per AEC-Q100 stress testing.
Can the TLE4253EXUMA2 track a reference higher than 5 V?
No-the datasheet specifies a maximum reference voltage of 5.0 V at the EN/ADJ pin. Exceeding this violates absolute maximum ratings (VADJ/EN max = 45 V), but functional tracking is only characterized and guaranteed up to 5.0 V. Higher references risk gain nonlinearity and thermal instability due to internal amplifier limits.
Is the exposed pad electrically isolated or grounded?
The exposed pad (EP) is internally connected to GND and must be soldered to a PCB ground plane. It serves both thermal and electrical functions: thermal conduction to reduce RthJC to 9 K/W, and low-impedance grounding for noise suppression and protection circuit reference integrity.
Does the TLE4253EXUMA2 require an external feedback resistor divider for all configurations?
No-when output voltage must equal or be lower than the reference, connect FB directly to Q (unity-gain configuration). A resistor divider is required only when scaling output above the reference (e.g., 5 V ref → 8 V out), per the application information in Section 5 of the datasheet.
TLE4253EXUMA2 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:
- 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-8-27
TLE4253EXUMA2 FAQ
1.How can I place an order for TLE4253EXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4253EXUMA2 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 TLE4253EXUMA2 reliable?
The price and inventory of TLE4253EXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4253EXUMA2 is usually 5 days.
3.What payment methods are accepted for TLE4253EXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4253EXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4253EXUMA2?
TLE4253EXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4253EXUMA2 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 TLE4253EXUMA2?
For technical support, including TLE4253EXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4253EXUMA2 requirements.
6.How does Aetrix verify that TLE4253EXUMA2 is sourced from the original manufacturer or authorized distributors?
All TLE4253EXUMA2 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 TLE4253EXUMA2 meets industry standards.
7.What is the process for return or replacement of TLE4253EXUMA2?
All TLE4253EXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4253EXUMA2, 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 TLE4253EXUMA2 part is unused and in its original packaging.
Return procedure for TLE4253EXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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