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Infineon Technologies IFX2931GV50XUMA1
- Part No.:
- IFX2931GV50XUMA1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IFX2931GV50XUMA1.pdf
- Description:
- IC REG LINEAR 5V 100MA DSO8
- Quantity:
- Payment:
- Shipping:
Inventory:3,615
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Product details
Overview
IFX2931GV50XUMA1 from Infineon Technologies is a low-dropout linear voltage regulator delivering a fixed 5.0 V output with ≤1 mA quiescent current at 10 mA load, 0.2 V dropout at 10 mA, reverse battery protection, and thermal shutdown - designed for automotive memory standby and low-power processor supply circuits.
For engineers reviewing the IFX2931GV50XUMA1 datasheet, IFX2931GV50XUMA1 pinout, IFX2931GV50XUMA1 application, or IFX2931GV50XUMA1 equivalent, key selection criteria include dropout voltage at 100 mA (≤0.6 V), input voltage range (6–28 V), junction temperature rating (−40 to +125 °C), RoHS compliance, and PG-DSO-8 package compatibility with mirror-image insertion protection.
Technical Context
The IFX2931GV50XUMA1 integrates bandgap reference, error amplifier, and saturation control circuitry to maintain regulation under wide input and load variations. Its protection architecture includes reverse-polarity blocking, current limiting, and overtemperature shutdown triggered by an on-die temperature sensor.
It operates in a functional input range of 6–28 V and sustains 100 mA output while maintaining <±5% output voltage accuracy across −40 to +125 °C junction temperature. The device requires only a 10 µF output capacitor and supports stable operation without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±5% (ensures stable logic-level supply for CMOS memory and microcontrollers) |
| Dropout Voltage | 0.2 V @ 10 mA (enables regulation from 5.2 V input; 0.6 V @ 100 mA) |
| Quiescent Current | 0.4–1 mA @ 10 mA load (minimizes standby power loss in always-on systems) |
| Input Voltage Range | 6–28 V (supports 12 V automotive battery with transient tolerance) |
| Junction Temp Range | −40 to +125 °C (qualified for under-hood automotive environments) |
| Thermal Resistance | RthJA = 96 K/W (FR4 2s2p board; dictates heatsinking needs at full load) |
| PSRR | 80 dB @ 120 Hz (rejects alternator ripple in vehicle electrical systems) |
Pinout & Package
IFX2931GV50XUMA1 is housed in a PG-DSO-8 surface-mount package with exposed thermal pad (non-leaded, RoHS-compliant). Pin 1 is OUT; Pins 2,3,6,7 are GND; Pins 4,5 are no-connect; Pin 8 is IN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT | Regulated 5.0 V output; requires local 10 µF ceramic capacitor to GND |
| 2,3,6,7 | GND | Power ground return path; multiple pins reduce impedance and improve thermal conduction |
| 4,5 | n.c. | No internal connection; must remain unconnected per design |
| 8 | IN | Input supply (6–28 V); benefits from local decoupling capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Reverse battery protection | Withstands −30 V input indefinitely without damage or latch-up |
| Mirror-image insertion protection | Safe operation even if IC is rotated 180° during placement due to symmetrical GND layout |
| Low-noise regulation | 500 µVrms output noise (100 Hz–10 kHz) enables clean supply for analog/RF subsystems |
| Overtemperature shutdown | Thermal cutoff activates at ~150 °C junction temp, auto-recovering after cooldown |
| Green product | RoHS-compliant, halogen-free, and lead-free per JEDEC J-STD-609A |
Applications
| Automotive Memory Standby | Low-Power Microcontroller Supply |
|---|---|
Use Scenario: Maintaining SRAM/EEPROM state during vehicle ignition-off periods with minimal battery drain. IC Role / Device Role / Timing Role: Fixed 5.0 V LDO regulator supplying standby power with ≤1 mA quiescent current. Use Value: Enables >1-year battery hold-up time without compromising data retention integrity. | Use Scenario: Powering ARM Cortex-M0+ or RISC-V MCU cores in sleep mode with wake-on-interrupt capability. IC Role / Device Role / Timing Role: Primary low-noise, low-IQ supply rail for core logic and RTC peripherals. Use Value: Reduces system-wide standby power by >40% versus standard 3.3 V regulators with higher IQ. |
| Body Control Module (BCM) Subsystem | Telematics ECU Power Sequencing |
Use Scenario: Providing isolated 5 V rail to door lock actuators, window motor drivers, and LED status indicators. IC Role / Device Role / Timing Role: Secondary regulated supply with reverse-polarity and short-circuit resilience. Use Value: Eliminates need for external reverse-protection diode and reduces BOM count by one component. | Use Scenario: Pre-regulating 12 V battery input before buck converter stage in LTE/GNSS telematics modules. IC Role / Device Role / Timing Role: Input-stage LDO ensuring clean, ripple-free bias for sensitive RF front-end ICs. Use Value: Improves GNSS acquisition sensitivity by 2–3 dB through 80 dB PSRR suppression of alternator noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLE4275G | 5.0 V output, 150 mA max, 40 µA IQ, integrated watchdog timer | Includes fail-safe monitoring; suited for ASIL-B safety-critical subfunctions | Select when functional safety diagnostics are required beyond basic regulation |
| TLV73350PDBVR | 5.0 V output, 300 mA, 40 µA IQ, SOT-23-5 package, no reverse-battery protection | Higher current, smaller footprint, but lacks automotive-grade fault tolerance | Select for cost-sensitive consumer or industrial designs where reverse polarity is not a risk |
Compared with TLE4275G and TLV73350PDBVR, IFX2931GV50XUMA1 uniquely balances ultra-low IQ (≤1 mA), reverse-battery survivability (−30 V), and mirror-image robustness - making it optimal for non-safety-critical but harsh-environment automotive standby rails where space and fault coverage are constrained.
Availability
IFX2931GV50XUMA1 is available at Aetrix Electronics and suitable for automotive memory standby, low-power microcontroller supply, and body control module applications requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for IFX2931GV50XUMA1 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 industrial control ICs, with global manufacturing and qualification standards aligned to AEC-Q100.
The IFX2931 series belongs to Infineon's automotive-grade linear regulator portfolio, engineered specifically for low-quiescent-current, high-reliability standby power in 12 V vehicle electrical systems.
FAQ
What is the minimum input voltage required for regulation at full 100 mA load?
The IFX2931GV50XUMA1 requires a minimum input voltage of 5.6 V to maintain regulation at 100 mA load, based on its maximum dropout voltage of 0.6 V at that current. Below this threshold, output voltage drops linearly with input, and regulation is lost.
Can IFX2931GV50XUMA1 be used with ceramic output capacitors?
Yes - the device is stable with ceramic output capacitors ≥10 µF and ESR ≤100 mΩ, as confirmed in the datasheet's "Typical Performance Characteristics" section. No series resistor is needed for damping, unlike older LDO architectures.
Does IFX2931GV50XUMA1 require an input bypass capacitor?
Yes - a 100 nF ceramic capacitor placed between Pin 8 (IN) and any adjacent GND pin (e.g., Pin 7) is recommended to suppress line transients and ensure stability during load-step events in automotive environments.
Is the PG-DSO-8 package thermally enhanced?
Yes - the PG-DSO-8 package features an exposed thermal pad connected internally to GND. For optimal thermal performance, the pad must be soldered to a minimum 300 mm² copper pour on the PCB, achieving RthJA ≈ 67 K/W per JEDEC JESD51-7 simulation.
IFX2931GV50XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 28V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 100mA
- Current - Output:
- 100mA
- Current - Quiescent (Iq):
- 1 mA
- Current - Supply (Max):
- 15 mA
- PSRR:
- 80dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-DSO-8
IFX2931GV50XUMA1 FAQ
1.How can I place an order for IFX2931GV50XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IFX2931GV50XUMA1 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 IFX2931GV50XUMA1 reliable?
The price and inventory of IFX2931GV50XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX2931GV50XUMA1 is usually 5 days.
3.What payment methods are accepted for IFX2931GV50XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX2931GV50XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IFX2931GV50XUMA1?
IFX2931GV50XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IFX2931GV50XUMA1 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 IFX2931GV50XUMA1?
For technical support, including IFX2931GV50XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX2931GV50XUMA1 requirements.
6.How does Aetrix verify that IFX2931GV50XUMA1 is sourced from the original manufacturer or authorized distributors?
All IFX2931GV50XUMA1 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 IFX2931GV50XUMA1 meets industry standards.
7.What is the process for return or replacement of IFX2931GV50XUMA1?
All IFX2931GV50XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX2931GV50XUMA1, 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 IFX2931GV50XUMA1 part is unused and in its original packaging.
Return procedure for IFX2931GV50XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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