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Infineon Technologies TLE4253GSXUMA4
- Part No.:
- TLE4253GSXUMA4
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4253GSXUMA4.pdf
- Description:
- IC REG LDO ADJ 0.25A 8DSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,484
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Product details
Overview
TLE4253GSXUMA4 from Infineon Technologies is an adjustable low-dropout linear voltage regulator delivering up to 250 mA output current with 1.8 V to 40 V input range, 1.25 V reference voltage, and ±2% output voltage accuracy over temperature and load. It serves as a primary post-regulator in automotive body control modules for powering microcontrollers and sensors.
For engineers reviewing the TLE4253GSXUMA4 datasheet, TLE4253GSXUMA4 pinout, TLE4253GSXUMA4 application, or TLE4253GSXUMA4 equivalent, key selection criteria include dropout voltage at 250 mA, thermal shutdown behavior, enable logic polarity, and AEC-Q100 Grade 1 qualification for under-hood use.
Technical Context
The TLE4253GSXUMA4 integrates a precision bandgap reference, error amplifier, and power transistor in a single monolithic IC. Its adjustable output is set via external resistor divider connected to the ADJ pin, enabling outputs from 1.25 V to 36 V with stable regulation across -40 °C to +150 °C ambient.
It features integrated short-circuit protection with foldback current limiting, overtemperature shutdown with hysteresis, and reverse-battery protection down to -42 V. The device operates with a typical quiescent current of 130 µA and supports ON/OFF control via TTL-compatible EN pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 250 mA max - sufficient to power MCU cores, CAN transceivers, and analog sensor front-ends in automotive ECUs |
| Input Voltage Range | 1.8 V to 40 V - supports cold-crank (4.5 V) and load-dump (40 V) conditions per ISO 7637-2 |
| Reference Voltage | 1.25 V ±1% - enables precise output setting with minimal resistor tolerance impact |
| Dropout Voltage | 0.55 V at 250 mA - ensures regulation during battery sag to 6.5 V while maintaining 6 V output |
| Quiescent Current | 130 µA typical - meets low-power sleep-mode requirements in always-on vehicle networks |
| Thermal Shutdown | 165 °C with 15 °C hysteresis - prevents permanent damage during sustained overload or poor heatsinking |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C junction) - qualified for engine compartment and transmission control applications |
Pinout & Package
Supplied in PG-DSO-8-15 (8-pin exposed-pad SOIC) package with thermal pad for enhanced PCB heat dissipation. Pin 1 marked by dot; pin 8 is GND and thermally connected to exposed pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main input supply connection | Accepts 1.8–40 V; must be decoupled with ≥1 µF ceramic capacitor near pin |
| GND | Power and signal reference ground | Shared return path for load current and internal circuitry; tied to exposed thermal pad |
| ADJ | Voltage feedback node | Connects to resistor divider; sets output voltage as VOUT = 1.25 × (1 + R1/R2) |
| OUT | Regulated output terminal | Delivers up to 250 mA; requires ≥10 µF output capacitor for stability |
| EN | Enable control input | TTL-compatible active-high; pulls output to high-impedance when low |
| NC | No connect | Internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-battery protection | Withstands −42 V input without damage - eliminates need for external series diode in 12 V systems |
| Integrated foldback current limit | Reduces output current to ~50 mA during short-circuit - limits power dissipation and PCB trace heating |
| Enable pin with hysteresis | EN threshold: 1.0 V (low) / 1.4 V (high) - prevents erratic turn-on near supply rail transitions |
| Low-noise output | 40 µVRMS output noise (10 Hz–100 kHz) - suitable for analog sensor biasing without added filtering |
| Wide operating temperature | Junction range −40 °C to +150 °C - supports placement near powertrain or lighting drivers |
Applications
| Body Control Module (BCM) | Door Control Unit (DCU) |
|---|---|
Use Scenario: Powering 3.3 V microcontroller, LIN transceiver, and window motor driver IC in centralized door electronics. IC Role / Device Role / Timing Role: Primary 3.3 V LDO regulator supplying core logic and interface peripherals. Use Value: Maintains regulation during 6 V cold-crank; reverse-battery protection avoids external diode cost and voltage drop. | Use Scenario: Providing stable 5 V supply to mirror position sensors and memory EEPROM in side-view mirror assemblies. IC Role / Device Role / Timing Role: Adjustable LDO configured for 5.0 V output with tight tolerance and low noise. Use Value: 1.25 V reference and ±2% accuracy ensure sensor ADC reference stability across temperature. |
| Seat Control Module | Lighting Control Unit (LCU) |
Use Scenario: Supplying 3.3 V to seat position encoder interface and heater PWM controller in power seat ECU. IC Role / Device Role / Timing Role: Post-regulator downstream of buck converter, providing clean low-noise rail. Use Value: 40 µVRMS noise prevents encoder signal corruption; EN pin enables synchronized power sequencing. | Use Scenario: Delivering 12 V bias to LED driver ICs and ambient light sensor in adaptive headlight control. IC Role / Device Role / Timing Role: Adjustable LDO configured for 12 V output to drive high-side LED switches. Use Value: 40 V max input withstands load-dump events; thermal shutdown protects against LED open-circuit faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117LV33DCYR | Fixed 3.3 V output; 800 mA rating; no reverse-battery protection; not AEC-Q100 qualified | Limited to fixed-output, non-automotive applications requiring higher current | Select only for cost-sensitive industrial designs where reverse polarity risk is eliminated externally |
| MAX1725EUT+T | Fixed 3.3 V output; 250 mA; ±2% accuracy; reverse-voltage tolerant to −20 V only | Suitable for infotainment subsystems with lower reverse-voltage stress | Use where ISO 7637-2 load-dump immunity is not required and board space allows SOT-23-5 |
Compared with TLV1117LV33DCYR and MAX1725EUT+T, the TLE4253GSXUMA4 uniquely combines adjustable output, −42 V reverse-battery tolerance, and AEC-Q100 Grade 1 qualification-making it the only choice for robust, flexible LDO regulation in harsh automotive environments.
Availability
TLE4253GSXUMA4 is available at Aetrix Electronics and suitable for body control modules, door control units, seat control modules, and lighting control units requiring stable component supply across automotive production lifecycles.
Supply support for TLE4253GSXUMA4 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 ICs, and industrial control solutions.
The TLE4253 belongs to Infineon's TLE family of automotive-grade linear regulators, designed specifically for reliable power supply in engine, chassis, and body electronics under extreme electrical and thermal stress.
FAQ
What is the minimum input voltage required for regulation at 3.3 V output?
The TLE4253GSXUMA4 requires input voltage ≥ 3.85 V to maintain 3.3 V output at 250 mA load, based on its 0.55 V typical dropout voltage. Below this, output collapses linearly with input; operation below 1.8 V input is prohibited per absolute maximum ratings.
Does the EN pin require a pull-up resistor for default-on operation?
No external pull-up is needed: the EN pin has an internal 100 kΩ pull-down resistor. To enable the regulator by default, connect EN directly to IN. For controlled sequencing, drive EN with an open-drain or push-pull signal referenced to GND.
Can the TLE4253GSXUMA4 be used without an output capacitor?
No. An output capacitor ≥10 µF with ≤100 mΩ ESR is mandatory for stability per datasheet Section 8.2. Omitting it causes oscillation and potential damage. Ceramic or tantalum types are acceptable; aluminum electrolytic must meet ESR specification.
Is the exposed thermal pad electrically connected internally?
Yes-the exposed pad is internally connected to GND and must be soldered to a PCB thermal plane. It is not isolated; connecting it to any net other than GND violates the device's thermal and electrical design and may cause malfunction or failure.
TLE4253GSXUMA4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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
TLE4253GSXUMA4 FAQ
1.How can I place an order for TLE4253GSXUMA4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4253GSXUMA4 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 TLE4253GSXUMA4 reliable?
The price and inventory of TLE4253GSXUMA4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4253GSXUMA4 is usually 5 days.
3.What payment methods are accepted for TLE4253GSXUMA4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4253GSXUMA4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4253GSXUMA4?
TLE4253GSXUMA4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4253GSXUMA4 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 TLE4253GSXUMA4?
For technical support, including TLE4253GSXUMA4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4253GSXUMA4 requirements.
6.How does Aetrix verify that TLE4253GSXUMA4 is sourced from the original manufacturer or authorized distributors?
All TLE4253GSXUMA4 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 TLE4253GSXUMA4 meets industry standards.
7.What is the process for return or replacement of TLE4253GSXUMA4?
All TLE4253GSXUMA4 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4253GSXUMA4, 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 TLE4253GSXUMA4 part is unused and in its original packaging.
Return procedure for TLE4253GSXUMA4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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