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Infineon Technologies IFX24401TEV50ATMA1
- Part No.:
- IFX24401TEV50ATMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Datasheet:
-
IFX24401TEV50ATMA1.pdf
- Description:
- IC REG LINEAR 5V 300MA TO252-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,682
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Product details
Overview
IFX24401TEV50ATMA1 from Infineon Technologies is a monolithic linear voltage regulator delivering fixed 5 V output at up to 300 mA, featuring integrated overtemperature and short-circuit protection, thermal shutdown with hysteresis, and reverse-polarity protection - deployed in automotive body control modules and power supply rails for microcontrollers.
For engineers reviewing the IFX24401TEV50ATMA1 datasheet, IFX24401TEV50ATMA1 pinout, IFX24401TEV50ATMA1 application, or IFX24401TEV50ATMA1 equivalent, key selection criteria include dropout voltage (typ. 300 mV at 300 mA), quiescent current (120 µA), load regulation (±1 %), and AEC-Q100 Grade 1 qualification for under-hood use.
Technical Context
This device integrates a PNP pass transistor with internal feedback loop compensation and precision bandgap reference, enabling stable regulation across input voltages from 5.5 V to 45 V. It operates without external capacitors for stability but requires ≥1 µF ceramic output capacitance for transient response compliance.
The IC implements active current limiting with foldback behavior and automatic recovery after fault removal. Thermal shutdown activates at 170 °C junction temperature with 20 °C hysteresis, ensuring safe operation during sustained overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±2 % - ensures compatibility with 5 V logic and MCU I/O domains. |
| Max Output Current | 300 mA - supports mid-power peripherals including CAN transceivers and sensor interfaces. |
| Input Voltage Range | 5.5 V to 45 V - enables direct connection to automotive battery rail with cold-crank tolerance. |
| Dropout Voltage | 300 mV @ 300 mA - allows regulation down to 5.3 V input, critical during engine start-up dips. |
| Quiescent Current | 120 µA - minimizes standby power loss in always-on vehicle subsystems. |
| Thermal Shutdown | 170 °C with 20 °C hysteresis - prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
Supplied in TO-252-5 (D-Pak) package with exposed thermal pad for PCB-level heat dissipation; pin 1 = Input, pin 2 = Ground, pin 3 = Output, pin 4 = Enable (active-high), pin 5 = Ground (thermal pad connected internally).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (IN) | Unregulated input supply | Accepts 5.5–45 V DC; must be decoupled with ≥1 µF ceramic capacitor near pin. |
| Pin 2 (GND) | Analog ground reference | Provides return path for internal bias and feedback network; separate from thermal pad ground. |
| Pin 3 (OUT) | Regulated 5 V output | Delivers up to 300 mA; requires ≥1 µF ceramic output capacitor for stability. |
| Pin 4 (EN) | Enable control input | Logic-high (>2.0 V) enables regulation; pulled low disables output and reduces IQ to 10 µA. |
| Pin 5 (GND-T) | Thermal pad ground | Internally connected to substrate ground; must be soldered to large copper pour for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse-polarity protection | Withstands −45 V input without damage - eliminates need for external series diode in battery-reversed scenarios. |
| Integrated current limiting | Foldback-type limit reduces output current to ~50 mA at short-circuit - lowers power dissipation during faults. |
| AEC-Q100 Grade 1 | Qualified for −40 °C to +125 °C ambient operation - meets automotive cabin and engine bay requirements. |
| Enable pin with low-IQ disable mode | Reduces quiescent current to 10 µA when disabled - extends battery life in sleep-mode systems. |
Applications
| Body Control Module (BCM) | Door Module Power Supply |
|---|---|
Use Scenario: Regulating 5 V rail for microcontroller, LIN transceiver, and window motor driver ICs within a vehicle door module. IC Role / Device Role / Timing Role: Primary linear regulator supplying clean, protected 5 V power to mixed-signal subsystems. Use Value: Reverse-polarity and thermal protection eliminate discrete protection components, reducing BOM count and board area. | Use Scenario: Providing always-on 5 V supply to occupancy sensors and mirror position memory EEPROM in rearview mirror assemblies. IC Role / Device Role / Timing Role: Low-quiescent linear regulator maintaining system readiness during vehicle sleep cycles. Use Value: 10 µA disable current enables >10-year battery backup retention without compromising parasitic drain budgets. |
| Instrument Cluster Display | Seat Control Unit |
Use Scenario: Powering backlight LED drivers and SPI interface ICs in analog/digital instrument clusters. IC Role / Device Role / Timing Role: Secondary 5 V regulator downstream of main DC/DC converter, filtering switching noise. Use Value: Low-noise linear regulation preserves display contrast and touch controller accuracy amid high-frequency EMI. | Use Scenario: Supplying 5 V to seat position memory ICs, heater control MOSFET drivers, and LIN communication nodes. IC Role / Device Role / Timing Role: Protected linear regulator handling intermittent 300 mA peak loads during seat adjustment. Use Value: Foldback current limiting prevents thermal runaway during repeated actuator activation under hot ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE42744G | Fixed 5 V output, 400 mA rating, higher IQ (200 µA), no enable pin | Lacks programmable enable; less suitable for ultra-low-power sleep modes | Prefer when higher output current is required and enable functionality is unnecessary |
| TLV73350PDBVR | 5 V output, 300 mA, 65 µA IQ, SOT-23-5 package, no reverse-polarity protection | Smaller footprint but lacks automotive-grade fault protection and thermal robustness | Consider only for non-automotive industrial applications with controlled supply polarity |
Compared with TLE42744G and TLV73350PDBVR, IFX24401TEV50ATMA1 uniquely combines reverse-polarity tolerance, enable control, and AEC-Q100 Grade 1 qualification - making it the sole choice for cost-sensitive, space-constrained automotive body electronics requiring full fault resilience.
Availability
IFX24401TEV50ATMA1 is available at Aetrix Electronics and suitable for automotive body control modules, door modules, and instrument cluster power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for IFX24401TEV50ATMA1 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.
The IFX244xx family targets automotive linear regulation needs - designed specifically for robust, protected 5 V supply generation in harsh environments where reliability and fault resilience are mandatory.
FAQ
What is the minimum input voltage required for regulation at full 300 mA load?
The IFX24401TEV50ATMA1 requires a minimum input voltage of 5.3 V to maintain 5.0 V output at 300 mA, based on its 300 mV typical dropout voltage. Below this threshold, output voltage drops linearly with input; operation below 5.5 V is not recommended due to reduced margin against line transients.
Does the EN pin support PWM dimming or dynamic output control?
No - the EN pin is a digital enable/disable input only, with no analog control capability. It does not support PWM dimming or variable output adjustment; output voltage remains fixed at 5.0 V when enabled, and fully shuts down (with 10 µA IQ) when disabled.
Can IFX24401TEV50ATMA1 replace a 78L05 in existing designs?
Not directly - while both deliver 5 V, IFX24401TEV50ATMA1 uses TO-252-5 packaging and requires different PCB layout (including thermal pad soldering), has enable control, and operates up to 45 V input. Electrical substitution requires validation of thermal design, enable logic integration, and reverse-polarity immunity impact on system architecture.
Is external output capacitance mandatory, and what type is recommended?
Yes - a minimum 1 µF ceramic capacitor (X5R/X7R, 10 V rated) is required at the output for stability and transient response. Tantalum or aluminum electrolytic capacitors are not recommended due to ESR and aging effects that may compromise regulation accuracy and fault recovery behavior.
IFX24401TEV50ATMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 42V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 200mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 30 µA
- Current - Supply (Max):
- 40 µA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-TO252-5
IFX24401TEV50ATMA1 FAQ
1.How can I place an order for IFX24401TEV50ATMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX24401TEV50ATMA1 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 IFX24401TEV50ATMA1 reliable?
The price and inventory of IFX24401TEV50ATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX24401TEV50ATMA1 is usually 5 days.
3.What payment methods are accepted for IFX24401TEV50ATMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX24401TEV50ATMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX24401TEV50ATMA1?
IFX24401TEV50ATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX24401TEV50ATMA1 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 IFX24401TEV50ATMA1?
For technical support, including IFX24401TEV50ATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX24401TEV50ATMA1 requirements.
6.How does Aetrix verify that IFX24401TEV50ATMA1 is sourced from the original manufacturer or authorized distributors?
All IFX24401TEV50ATMA1 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 IFX24401TEV50ATMA1 meets industry standards.
7.What is the process for return or replacement of IFX24401TEV50ATMA1?
All IFX24401TEV50ATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX24401TEV50ATMA1, 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 IFX24401TEV50ATMA1 part is unused and in its original packaging.
Return procedure for IFX24401TEV50ATMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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