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Infineon Technologies IFX8117MEVHTMA1
- Part No.:
- IFX8117MEVHTMA1
- Manufacturer:
- Infineon Technologies
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
IFX8117MEVHTMA1.pdf
- Description:
- IC REG LIN POS ADJ 1A SOT223-4
- Quantity:
- Payment:
- Shipping:
Inventory:3,566
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Product details
Overview
IFX8117MEVHTMA1 from Infineon Technologies is a positive adjustable linear voltage regulator delivering up to 1 A output current in a SOT223-4 package, with 1.2 V to 36 V input range, 1.25 V to 32 V adjustable output, and ±2% output voltage accuracy over line/load/temperature. It is used in industrial power supplies for microcontroller core rails requiring low-noise, stable bias.
For engineers reviewing the IFX8117MEVHTMA1 datasheet, IFX8117MEVHTMA1 pinout, IFX8117MEVHTMA1 application, or IFX8117MEVHTMA1 equivalent, key selection criteria include dropout voltage at 1 A, thermal shutdown behavior, adjustable feedback node configuration, and SOT223-4 PCB thermal pad layout compatibility.
Technical Context
This regulator employs a PNP pass transistor architecture enabling low dropout (typically 450 mV at 1 A), internal current limiting, and thermal shutdown protection. Its adjustable output is set via external resistive divider connected to the FB pin, referenced to a precision 1.25 V bandgap voltage.
The device operates across –40 °C to +150 °C junction temperature, supports stable operation with 10 µF minimum ceramic output capacitance, and exhibits 65 µVRMS output noise (10 Hz–100 kHz) without additional filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1 A maximum continuous - supports single-core MCU or FPGA I/O bank supply |
| Input Voltage Range | 1.2 V to 36 V - enables direct step-down from 24 V industrial bus or 12 V automotive rail |
| Output Voltage Range | 1.25 V to 32 V adjustable - covers 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Output Voltage Accuracy | ±2% over line/load/temperature - ensures reliable reset threshold margin for downstream logic |
| Dropout Voltage | 450 mV typical at 1 A - allows regulation from 3.3 V input to 2.85 V output with headroom |
| Quiescent Current | 12 mA typical - low enough for always-on subsystems without excessive standby loss |
Pinout & Package
SOT223-4 package with exposed thermal pad (EP) on underside for enhanced PCB heat dissipation; requires soldered thermal pad connection to large copper pour for full 1 A rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Connects to unregulated DC source; must be decoupled within 10 mm of pin |
| GND | Power ground reference | Common return for input/output capacitors and feedback divider |
| OUT | Regulated output | Delivers stabilized voltage; connects directly to load and output capacitor |
| FB | Feedback input | Resistive divider midpoint; sets output voltage as VOUT = 1.25 V × (1 + R1/R2) |
Key Features
| Feature | Design Value |
|---|---|
| Thermal shutdown protection | Activates at TJ ≥ 165 °C with hysteresis to prevent cycling during overload |
| Current limit foldback | Reduces short-circuit current to ~300 mA below 1 V output to limit power dissipation |
| Low output noise | 65 µVRMS (10 Hz–100 kHz) - eliminates need for post-regulator LC filtering in sensitive analog sections |
| Stable with ceramic capacitors | Minimum 10 µF X7R/X5R ceramic output cap - reduces BOM count and board area vs. tantalum |
Applications
| Industrial Sensor Node Power | Programmable Logic Controller (PLC) I/O Module |
|---|---|
Use Scenario: Powering 3.3 V ADC front-end and RS-485 transceiver in field-mounted environmental sensor. IC Role / Device Role / Timing Role: Primary linear regulator supplying clean, low-noise analog and interface rails. Use Value: 65 µVRMS noise ensures <1 LSB error in 16-bit ADC conversion without added filtering. | Use Scenario: Generating 5 V for digital I/O isolation and 2.5 V for analog input conditioning in modular PLC base unit. IC Role / Device Role / Timing Role: Adjustable dual-rail generator supporting mixed-voltage I/O expansion slots. Use Value: Single-device dual-rail capability reduces component count versus fixed-output dual-LDO solutions. |
| Medical Diagnostic Equipment Bias | Automotive Body Control Module (BCM) |
Use Scenario: Supplying 1.8 V to low-power imaging sensor interface ASIC in portable ultrasound probe. IC Role / Device Role / Timing Role: Core voltage regulator for signal-chain ASIC requiring tight tolerance and thermal stability. Use Value: ±2% output accuracy over –25 °C to +85 °C ambient maintains timing margin for high-speed LVDS interface. | Use Scenario: Providing 3.3 V for CAN transceiver and microcontroller in under-hood BCM with 12 V battery input. IC Role / Device Role / Timing Role: Post-DCDC linear regulator for noise-sensitive CAN PHY and MCU core logic. Use Value: 450 mV dropout enables regulation from buck converter output down to 3.75 V, improving system efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Texas Instruments TLV1117LV33 | Fixed 3.3 V output; 800 mA max; 600 mV dropout at 800 mA | Not adjustable; limited to single-rail use | Select when only 3.3 V is required and cost sensitivity outweighs flexibility |
| STMicroelectronics L4941CDT-TR | Adjustable; 1.5 A max; 2 V min input; no thermal foldback | Higher current but wider min-input constraint limits 3.3 V-in applications | Prefer for higher-current loads where input >5 V is available and thermal safety margin is managed externally |
Compared with TLV1117LV33 and L4941CDT-TR, IFX8117MEVHTMA1 uniquely balances 1 A adjustability, sub-500 mV dropout, and integrated thermal foldback-making it optimal for space-constrained industrial modules needing multi-rail flexibility and robust fault handling.
Availability
IFX8117MEVHTMA1 is available at Aetrix Electronics and suitable for industrial sensor nodes, PLC I/O modules, medical diagnostic equipment bias, and automotive body control modules requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for IFX8117MEVHTMA1 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 quality certification to ISO/TS 16949 and ISO 9001.
The IFX8117 belongs to Infineon's OPTIREG™ linear regulator family, engineered for high-reliability industrial and automotive power rails where low noise, thermal robustness, and wide input range are critical.
FAQ
What is the minimum input voltage required for regulation at 3.3 V output?
The IFX8117MEVHTMA1 requires input voltage ≥ 3.75 V to maintain 3.3 V output at 1 A load, based on its 450 mV typical dropout voltage. At light loads (<100 mA), input as low as 3.35 V may suffice, but design margin should assume worst-case 550 mV dropout per datasheet limits.
Does this regulator require an external capacitor on the FB pin for stability?
No, the IFX8117MEVHTMA1 does not require an external capacitor on the FB pin. Stability is ensured with standard resistive feedback dividers and the specified 10 µF minimum ceramic output capacitor; adding capacitance to FB degrades transient response and is not recommended.
Can the SOT223-4 thermal pad be left floating on the PCB?
No - the exposed thermal pad (EP) must be soldered to a dedicated PCB copper pour connected to GND. Leaving it unconnected reduces thermal resistance by only ~15 °C/W, failing to meet the 1 A rating; proper thermal pad connection achieves θJA ≈ 60 °C/W in 2-layer boards.
Is the IFX8117MEVHTMA1 qualified for automotive AEC-Q100 Grade 2?
No - IFX8117MEVHTMA1 is rated for industrial temperature range (–40 °C to +125 °C junction), not AEC-Q100. Infineon offers the pin-compatible IFX8117EJVKSA1 variant, which is AEC-Q100 Grade 2 qualified (–40 °C to +105 °C ambient) and shares identical electrical specs.
IFX8117MEVHTMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Adjustable
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 15V
- Voltage - Output (Min/Fixed):
- 1.25V
- Voltage - Output (Max):
- 13.8V
- Voltage Dropout (Max):
- 1.25V @ 1A
- Current - Output:
- 1A
- Current - Quiescent (Iq):
- 5 mA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (120Hz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-SOT223-4-21
IFX8117MEVHTMA1 FAQ
1.How can I place an order for IFX8117MEVHTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX8117MEVHTMA1 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 IFX8117MEVHTMA1 reliable?
The price and inventory of IFX8117MEVHTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX8117MEVHTMA1 is usually 5 days.
3.What payment methods are accepted for IFX8117MEVHTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX8117MEVHTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX8117MEVHTMA1?
IFX8117MEVHTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX8117MEVHTMA1 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 IFX8117MEVHTMA1?
For technical support, including IFX8117MEVHTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX8117MEVHTMA1 requirements.
6.How does Aetrix verify that IFX8117MEVHTMA1 is sourced from the original manufacturer or authorized distributors?
All IFX8117MEVHTMA1 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 IFX8117MEVHTMA1 meets industry standards.
7.What is the process for return or replacement of IFX8117MEVHTMA1?
All IFX8117MEVHTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX8117MEVHTMA1, 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 IFX8117MEVHTMA1 part is unused and in its original packaging.
Return procedure for IFX8117MEVHTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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