My Inquiry
My Account
Infineon Technologies TLE4253GSXUMA2
- Part No.:
- TLE4253GSXUMA2
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLE4253GSXUMA2.pdf
- Description:
- IC REG LINEAR POS ADJ 250MA DSO8
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLE4253GSXUMA2 from Infineon Technologies is a monolithic adjustable linear voltage regulator with 250 mA output current, integrated short-circuit and thermal shutdown protection, and 45 V maximum input voltage. It operates in automotive environments (−40 °C to 150 °C ambient), delivers 1.25 V to 40 V adjustable output via external resistor divider, and is used in body control modules for power supply regulation of microcontrollers and sensors.
For engineers reviewing the TLE4253GSXUMA2 datasheet, TLE4253GSXUMA2 pinout, TLE4253GSXUMA2 application, or TLE4253GSXUMA2 equivalent, key selection criteria include adjustable output range, high-voltage tolerance, integrated protection features, and AEC-Q100 qualification for automotive use.
Technical Context
The TLE4253GSXUMA2 implements a bandgap reference-based error amplifier driving an NPN pass transistor, enabling precise output voltage regulation across load and line variations. Its internal current-limit circuit activates at ~350 mA, and thermal shutdown triggers at junction temperature ≥170 °C.
It supports fixed or adjustable configurations via ADJ pin connection; when ADJ is tied to OUT, it defaults to 5.0 V output. The device includes undervoltage lockout (UVLO) that disables regulation below ~5.5 V input, preventing erratic startup behavior in automotive battery brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 250 mA continuous - sufficient to power MCU cores, CAN transceivers, and analog sensor signal chains |
| Input Voltage Range | 5.5 V to 45 V - compatible with 12 V and 24 V automotive battery systems including load dump transients |
| Output Voltage Range | 1.25 V to 40 V adjustable - enables flexible rail generation without external LDO cascading |
| Quiescent Current | 120 µA typical - minimizes standby power loss in always-on vehicle subsystems |
| Thermal Shutdown Threshold | ≥170 °C junction - protects against sustained overload or poor PCB heatsinking |
| AEC-Q100 Grade | Grade 1 (−40 °C to +125 °C ambient) - qualified for engine bay and cabin electronics |
Pinout & Package
Supplied in RoHS-compliant PG-DSO-8 (exposed pad) package with thermal enhancement for automotive under-hood operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main power input | Accepts 5.5–45 V supply; connects directly to battery rail or pre-regulated source |
| GND | Analog and power ground | Common reference for feedback network and internal bias circuits |
| OUT | Regulated output | Delivers stable voltage to load; also serves as reference for ADJ pin in fixed-mode configuration |
| ADJ | Feedback adjust node | Connects to resistor divider for output voltage setting; open or tied to OUT selects 5.0 V default |
| EN | Enable control input | Active-high logic input; pulls regulator into low-current standby when driven low |
| SENSE | Remote sense input | Compensates for PCB trace IR drop by sensing load-side voltage directly |
| NC | No connect | Internally unused; must remain unconnected per datasheet |
| EP | Exposed thermal pad | Electrically connected to GND; requires soldered thermal land for junction-to-board heat transfer |
Key Features
| Feature | Design Value |
|---|---|
| Adjustable output voltage (1.25–40 V) | Eliminates need for multiple fixed-output regulators in multi-rail systems |
| Integrated SENSE pin for remote voltage sensing | Maintains ±1 % output accuracy at load despite PCB resistance up to 100 mΩ |
| Enable (EN) pin with hysteresis | Prevents oscillation during slow-rising enable signals in noisy automotive environments |
| Undervoltage lockout (UVLO) | Ensures clean power-up only after stable input is established, avoiding reset glitches |
| Thermal shutdown with auto-restart | Allows safe recovery after transient overloads without requiring system-level intervention |
Applications
| Body Control Module (BCM) | Door Control Unit (DCU) |
|---|---|
Use Scenario: Powering 3.3 V microcontroller core and LIN transceiver in central body ECU. IC Role / Device Role / Timing Role: Primary 3.3 V linear regulator with remote sense compensation for long harness runs. Use Value: Maintains <±2 % output regulation across temperature and load while surviving 40 V load dump pulses. | Use Scenario: Supplying 5.0 V to window lift motor driver IC and position sensor. IC Role / Device Role / Timing Role: Adjustable regulator configured as 5.0 V source with EN pin controlled by door module wake-up signal. Use Value: Enables zero-power standby mode (<15 µA quiescent) until door handle touch detection initiates wake-up. |
| Seat Control Module | Lighting Control Unit (LCU) |
Use Scenario: Generating 12 V bias for seat heater PWM driver stage. IC Role / Device Role / Timing Role: High-voltage-adjustable regulator delivering 12 V from 24 V truck battery rail. Use Value: Operates continuously at 120 mA with <1.5 W dissipation due to DSO-8 thermal pad layout. | Use Scenario: Regulating 3.3 V for ambient light sensor ADC and LED driver logic. IC Role / Device Role / Timing Role: Low-noise linear regulator with SENSE pin compensating for PCB trace resistance to headlight assembly. Use Value: Ensures consistent sensor readings and dimming resolution across 10-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable automotive linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV1117LV33DCYR | Fixed 3.3 V output; max 40 V input; 800 mA rating; no SENSE or EN pins | Lacks remote sensing and enable control; unsuitable for dynamic power management or long-trace loads | Select only if fixed 3.3 V output suffices and PCB layout allows direct local regulation |
| LM2940T-5.0/NOPB | Fixed 5.0 V output; 20 V max input; 1 A rating; no ADJ/SENSE/EN; higher dropout | Cannot support 24 V systems or adjustable rails; limited to low-voltage legacy designs | Use only in cost-sensitive 12 V applications where 5 V fixed output and basic protection suffice |
Compared with TLV1117LV33DCYR and LM2940T-5.0/NOPB, the TLE4253GSXUMA2 uniquely combines wide-input-range operation, adjustable output, remote sensing, and automotive-grade enable/UVLO functionality-enabling robust, scalable power design in modern body electronics.
Availability
TLE4253GSXUMA2 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 extended temperature ranges and automotive qualification.
Supply support for TLE4253GSXUMA2 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, with global manufacturing and R&D infrastructure.
The TLE42xx family targets automotive power supply regulation, designed specifically for robustness in harsh electrical environments-including load dump, reverse battery, and wide temperature operation.
FAQ
What is the minimum input voltage required for regulation?
The TLE4253GSXUMA2 requires a minimum input voltage of 5.5 V to maintain regulation, enforced by its internal undervoltage lockout (UVLO) circuit. Below this threshold, the device disables output to prevent unstable operation during battery cranking or weak-battery conditions. This ensures reliable startup only when sufficient input energy is present.
Does the SENSE pin require external filtering components?
No external filtering is required on the SENSE pin; it is internally buffered and designed for direct connection to the load-side voltage node. However, routing the SENSE trace adjacent to the OUT trace (Kelvin connection) minimizes noise pickup and ensures accurate remote sensing. Adding a 1 nF capacitor between SENSE and GND is optional for high-frequency noise suppression in electrically noisy environments.
Can the EN pin be left floating in the circuit?
No, the EN pin must not be left floating. It has an internal pull-down resistor (~1 MΩ), but floating connections risk unintended enable/disable transitions due to EMI coupling. For guaranteed operation, tie EN directly to IN for always-on use or drive it actively with a clean logic signal. Pull-up to IN is acceptable only if system-level control is unnecessary.
How does thermal performance change with EP pad soldering?
Proper soldering of the exposed thermal pad (EP) to a ≥100 mm² copper thermal land reduces junction-to-board thermal resistance from 65 °C/W (unsoldered) to ≤25 °C/W. This enables continuous 250 mA output at 125 °C ambient without thermal shutdown, whereas missing or undersized EP land causes premature shutdown above 100 °C ambient or 150 mA load.
TLE4253GSXUMA2 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
TLE4253GSXUMA2 FAQ
1.How can I place an order for TLE4253GSXUMA2 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLE4253GSXUMA2 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 TLE4253GSXUMA2 reliable?
The price and inventory of TLE4253GSXUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLE4253GSXUMA2 is usually 5 days.
3.What payment methods are accepted for TLE4253GSXUMA2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLE4253GSXUMA2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLE4253GSXUMA2?
TLE4253GSXUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLE4253GSXUMA2 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 TLE4253GSXUMA2?
For technical support, including TLE4253GSXUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLE4253GSXUMA2 requirements.
6.How does Aetrix verify that TLE4253GSXUMA2 is sourced from the original manufacturer or authorized distributors?
All TLE4253GSXUMA2 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 TLE4253GSXUMA2 meets industry standards.
7.What is the process for return or replacement of TLE4253GSXUMA2?
All TLE4253GSXUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with TLE4253GSXUMA2, 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 TLE4253GSXUMA2 part is unused and in its original packaging.
Return procedure for TLE4253GSXUMA2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLE4253GSXUMA2 Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
