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Infineon Technologies IFX25001MEV33HTSA1
- Part No.:
- IFX25001MEV33HTSA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
IFX25001MEV33HTSA1.pdf
- Description:
- IC REG LIN 3.3V 400MA SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:2,584
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Product details
Overview
IFX25001MEV33HTSA1 from Infineon is a fixed-output 3.3 V low-dropout linear voltage regulator in PG-SOT223-4 package, delivering up to 400 mA output current with dropout voltage as low as 700 mV at 300 mA, wide 4.7–40 V input range, and integrated reverse polarity protection, overtemperature shutdown, and current limiting-used in HDTV power rails and network router auxiliary supplies.
For engineers reviewing the IFX25001MEV33HTSA1 datasheet, IFX25001MEV33HTSA1 pinout, IFX25001MEV33HTSA1 application, or IFX25001MEV33HTSA1 equivalent, key selection criteria include guaranteed 3.3 V ±3.4% output accuracy across load (5–300 mA) and temperature (−40 °C to +125 °C), thermal resistance of 51 K/W (junction-to-ambient, no heatsink), and compatibility with 22 µF/≤3 Ω ESR ceramic output capacitors.
Technical Context
The IFX25001MEV33HTSA1 implements a bandgap-referenced control amplifier driving a pass transistor with saturation control, enabling stable regulation under varying line and load conditions. Protection circuitry includes foldback current limiting triggered at 400–1100 mA and thermal shutdown activation at 151–200 °C junction temperature.
Its architecture supports operation without external compensation due to internal stability design validated for 22 µF output capacitance with ≤3 Ω ESR. Input voltage rejection remains ≥60 dB at 100 Hz, and output voltage drift is specified at −0.5 mV/K over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±3.4% (3.17–3.44 V) at 5–300 mA load and −40 °C to +125 °C |
| Max Output Current | 400 mA continuous; current limit activates at 400–1100 mA to prevent damage |
| Dropout Voltage | 700 mV typical at 300 mA load; enables regulation with VI as low as 4.0 V |
| Input Voltage Range | 4.7 V to 40 V functional; absolute max 45 V (non-operational stress limit) |
| Quiescent Current | 100–220 µA at 1 mA load; rises to 20–30 mA at full 400 mA output |
| Thermal Resistance | 51 K/W junction-to-ambient (PG-SOT223-4, no heatsink); 25 K/W junction-to-case |
| PSRR | ≥60 dB at 100 Hz; suppresses ripple from upstream switching converters |
Pinout & Package
IFX25001MEV33HTSA1 uses the PG-SOT223-4 package: thermally enhanced surface-mount outline with exposed heat slug (pin 4) internally tied to GND. Pin 1 is INPUT, pin 2 is GND, pin 3 is OUTPUT, and pin 4 is heat slug/GND connection-requires PCB copper pour for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (INPUT) | Regulator input supply | Accepts 4.7–40 V DC; requires local 100 nF ceramic capacitor to GND for high-frequency decoupling |
| 2 (GND) | Reference and return path | Internally connected to heat slug; forms common reference for control amplifier and protection circuits |
| 3 (OUTPUT) | Regulated 3.3 V output | Drives load up to 400 mA; requires ≥22 µF output capacitor with ≤3 Ω ESR for stability |
| 4 (Heat Slug) | Thermal and electrical ground | Exposed pad tied to GND; must be soldered to ≥300 mm² PCB copper area to maintain Tj ≤125 °C at full load |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Polarity Protection | Withstands −42 V input without damage-enables safe battery-reverse connection in industrial controls |
| Overtemperature Shutdown | Activates at 151–200 °C junction temperature and auto-recovers after cooldown-prevents thermal runaway |
| Wide Input Range | Operates from 4.7 V to 40 V-supports 12 V and 24 V industrial bus inputs without pre-regulation |
| Low Quiescent Current | 100–220 µA at light load-extends battery life in always-on appliance standby circuits |
| RoHS Compliance | Lead-free, halogen-free, green product per EU Directive 2011/65/EU-meets global environmental compliance requirements |
Applications
| HDTV Power Management | Network Router Auxiliary Supply |
|---|---|
Use Scenario: Providing clean 3.3 V bias to HDMI interface ICs and audio DACs in flat-panel TVs. IC Role / Device Role / Timing Role: Primary LDO for noise-sensitive analog and digital subsystems requiring <10 mV ripple. Use Value: PSRR ≥60 dB at 100 Hz suppresses switching noise from upstream DC/DC converters feeding main 12 V rail. | Use Scenario: Powering Ethernet PHY controllers and USB host controllers in SOHO routers. IC Role / Device Role / Timing Role: Local point-of-load regulator isolating digital logic from shared 5 V system rail. Use Value: 400 mA output capacity supports burst-mode PHY operation without brownout during packet transmission. |
| Manufacturing Automation I/O Module | Game Console Peripheral Interface |
Use Scenario: Regulating 3.3 V for isolated CAN transceiver bias and microcontroller I/O banks in PLC expansion modules. IC Role / Device Role / Timing Role: Robust front-end regulator tolerant of 40 V transients on factory 24 V DC bus. Use Value: Absolute max input rating of 45 V and reverse polarity protection prevent field failures from wiring errors. | Use Scenario: Supplying 3.3 V to USB 2.0 controller and SD card interface in handheld gaming accessories. IC Role / Device Role / Timing Role: Low-noise, fast-transient LDO supporting hot-plug detection and enumeration timing. Use Value: Load regulation of ±70 mV (5–300 mA) ensures stable USB signaling during plug-in events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE4275G | 5 V fixed output; 400 mA; wider −40 °C to +150 °C ambient rating; no reverse polarity protection | Designed for automotive 12 V systems; lacks reverse polarity hardening for industrial wiring environments | Select when higher ambient temperature tolerance is required and input reversal risk is mitigated externally |
| MCP1703T-3302E/MB | 3.3 V fixed; 250 mA max; 6 µA quiescent current; SOT-23 package; no thermal shutdown or current limit | Ultra-low IQ for battery-powered sensors; insufficient current and protection for industrial 400 mA loads | Choose only for low-power portable devices where 250 mA peak load and absence of fault protection are acceptable |
Compared with TLE4275G and MCP1703T-3302E/MB, IFX25001MEV33HTSA1 uniquely combines 400 mA output, reverse polarity protection, and thermal shutdown in a thermally capable SOT223 package-making it suitable for unregulated 24 V industrial rails where reliability under fault conditions is critical.
Availability
IFX25001MEV33HTSA1 is available at Aetrix Electronics and suitable for HDTV power management, network router auxiliary supply, and manufacturing automation I/O modules requiring stable component supply with long-term industrial lifecycle support.
Supply support for IFX25001MEV33HTSA1 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 electronics, and industrial control ICs, with global manufacturing and quality certification to ISO/TS 16949 and ISO 14001.
The IFX25001 series belongs to Infineon's industrial-grade linear regulator product line, engineered for robust operation in harsh environments-including wide temperature ranges, high input transients, and wiring fault conditions-targeting factory automation and consumer electronics power subsystems.
FAQ
What is the minimum input voltage required for regulation at full 400 mA load?
The IFX25001MEV33HTSA1 requires a minimum input voltage of 4.0 V to maintain 3.3 V output at 300 mA (per datasheet Vdr = 0.7 V typ). At 400 mA, dropout increases; the functional input range starts at 4.7 V, so 4.7 V is the guaranteed minimum for stable regulation across temperature and process variation.
Can this regulator be used without an output capacitor?
No. The IFX25001MEV33HTSA1 requires a minimum 22 µF output capacitor with ESR ≤3 Ω (at 10 kHz) for loop stability. Omitting it causes oscillation and output voltage collapse under load. Ceramic capacitors meeting these specs are recommended; tantalum or aluminum electrolytics may be used if ESR is verified within limit.
Does the heat slug (pin 4) need to be electrically connected to PCB ground?
Yes. Pin 4 is internally connected to GND and serves as the primary thermal path. It must be soldered to a dedicated PCB copper pour tied to system ground. Failure to connect it results in excessive junction temperature-RthJA degrades from 51 K/W to >75 K/W-and risks premature thermal shutdown or permanent damage at rated load.
Is the IFX25001MEV33HTSA1 qualified for automotive applications?
No. While rated for −40 °C to +125 °C junction temperature, the IFX25001MEV33HTSA1 is not AEC-Q100 qualified and lacks automotive-specific validation (e.g., HTOL, ESD, EMC). For automotive use, Infineon recommends the TLE4275G or TLF series-designed, tested, and documented for automotive qualification requirements.
IFX25001MEV33HTSA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.2V @ 300mA
- Current - Output:
- 400mA
- Current - Quiescent (Iq):
- 220 µA
- Current - Supply (Max):
- 30 mA
- PSRR:
- 60dB (100Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4-21
IFX25001MEV33HTSA1 FAQ
1.How can I place an order for IFX25001MEV33HTSA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX25001MEV33HTSA1 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 IFX25001MEV33HTSA1 reliable?
The price and inventory of IFX25001MEV33HTSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX25001MEV33HTSA1 is usually 5 days.
3.What payment methods are accepted for IFX25001MEV33HTSA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX25001MEV33HTSA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX25001MEV33HTSA1?
IFX25001MEV33HTSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX25001MEV33HTSA1 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 IFX25001MEV33HTSA1?
For technical support, including IFX25001MEV33HTSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX25001MEV33HTSA1 requirements.
6.How does Aetrix verify that IFX25001MEV33HTSA1 is sourced from the original manufacturer or authorized distributors?
All IFX25001MEV33HTSA1 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 IFX25001MEV33HTSA1 meets industry standards.
7.What is the process for return or replacement of IFX25001MEV33HTSA1?
All IFX25001MEV33HTSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX25001MEV33HTSA1, 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 IFX25001MEV33HTSA1 part is unused and in its original packaging.
Return procedure for IFX25001MEV33HTSA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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