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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Infineon Technologies IFX2931GV50XUMA2

Name: IFX2931GV50XUMA2
Brand: Infineon Technologies
SKU: IFX2931GV50XUMA2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IFX2931GV50XUMA2

Manufacturer:: Infineon Technologies

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: IFX2931GV50XUMA2.pdf

Description:: IC REG LINEAR 5V 100MA DSO8

Quantity:: RFQ Add To RFQ list

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Inventory:1,396

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Product details

Overview

IFX2931GV50XUMA2 from Infineon Technologies is a positive low-dropout linear voltage regulator delivering 5.0 V ±2.5% output with dropout voltage as low as 0.05 V at 10 mA load, quiescent current ≤1 mA, and reverse battery protection. It operates across -40 °C to +125 °C, supports 100 mA output current, and is housed in PG-DSO-8 package for automotive memory standby and low-power processor supply applications.

For engineers reviewing the IFX2931GV50XUMA2 datasheet, IFX2931GV50XUMA2 pinout, IFX2931GV50XUMA2 application, or IFX2931GV50XUMA2 equivalent, key selection criteria include dropout performance at light-to-moderate loads, thermal resistance (R_thJA = 96 K/W), mirror-image insertion immunity, and compatibility with small 10 µF output capacitors in space-constrained embedded systems.

Technical Context

The IFX2931GV50XUMA2 integrates bandgap reference, error amplifier, and saturation control circuitry to maintain regulation under wide input voltage (6–28 V) and load (0–100 mA) variations. Its internal protection includes overtemperature shutdown, output current limiting, and reverse-polarity tolerance up to -30 V.

Designed for automotive-grade reliability, it features mirror-image insertion protection and operates without external compensation. The device uses a fixed 5.0 V output architecture with no external feedback network, simplifying layout while ensuring stability with low-ESR ceramic capacitors ≥10 µF.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	5.0 V ±2.5% at 10 mA; ensures stable logic-level supply for CMOS memory and microcontrollers
Dropout Voltage	0.05 V (typ.) at 10 mA; enables regulation from 5.05 V input - critical for battery-powered standby rails
Quiescent Current	≤1 mA at 10 mA load; minimizes parasitic drain in always-on vehicle modules
Input Voltage Range	6–28 V; withstands automotive load-dump transients and cold-crank conditions
Thermal Resistance	R_thJA = 96 K/W (FR4 2s2p); defines maximum power dissipation (≈0.5 W) without heatsink
Protection Features	Reverse battery (-30 V), overtemperature shutdown, current limit, mirror-image insertion immunity
Noise Performance	500 µV_rms (100 Hz–10 kHz); suitable for noise-sensitive analog/RF subsystems

Pinout & Package

IFX2931GV50XUMA2 is packaged in PG-DSO-8 (8-pin exposed-pad SOIC), with pins 2,3,6,7 internally bonded to GND for thermal and electrical integrity. Pins 4 and 5 are not connected (n.c.).

Pin/Terminal	Circuit Role	Design Meaning
1	OUT	Regulated 5.0 V output; requires local 10 µF capacitor to GND for stability
2,3,6,7	GND	Ground return path and thermal conduction node; must be soldered to large PCB copper area
4,5	n.c.	No internal connection; left floating or tied to GND per layout best practice
8	IN	Main input supply; benefits from local decoupling capacitor to GND near pin

Key Features

Feature	Design Value
Ultra-low quiescent current	≤1 mA at 10 mA load - extends battery life in always-on automotive modules
Low dropout at light load	0.05 V typical at 10 mA - enables operation down to 5.05 V input in 5 V systems
Mirror-image insertion protection	Withstands reversed orientation during manual assembly - reduces field failure risk
Reverse battery tolerance	-30 V absolute max - survives jump-start polarity reversal in 12 V vehicle systems
Small output capacitor support	Stable with 10 µF ceramic C_OUT - eliminates need for bulky tantalum or electrolytic caps

Applications

Automotive Memory Standby

Low-Power Microcontroller Supply

Use Scenario: Maintaining SRAM or EEPROM state during vehicle ignition-off periods using 12 V battery with voltage decay to ~6 V.

IC Role / Device Role / Timing Role: Fixed 5.0 V LDO regulator providing clean, low-quiescent standby rail.

Use Value: 1 mA I_q prevents excessive battery drain; 0.05 V dropout allows regulation until battery drops to 5.05 V.

Use Scenario: Powering ARM Cortex-M0+ or RISC-V MCU cores in sleep mode with wake-up interrupt capability.

IC Role / Device Role / Timing Role: Primary 5 V supply for core logic and internal regulators, enabling sub-µA deep-sleep states.

Use Value: Reverse-battery and overtemperature protection ensure robustness in unattended vehicle electronics.

Body Control Module (BCM) Subsystem

Telematics GPS/GLONASS Receiver Bias

Use Scenario: Supplying isolated 5 V rail to LIN transceivers, door lock actuators, and interior lighting drivers.

IC Role / Device Role / Timing Role: Local point-of-load regulator decoupled from main BCM 5 V bus.

Use Value: 100 mA output capacity supports multiple peripherals; n.c. pins simplify routing in dense DSO-8 layouts.

Use Scenario: Providing ultra-low-noise 5 V bias to GNSS RF front-end and baseband ICs during satellite acquisition.

IC Role / Device Role / Timing Role: Low-noise analog supply rail with 500 µV_rms noise floor.

Use Value: PSRR >80 dB at 120 Hz suppresses alternator ripple; small C_OUT eases placement near RF section.

Equivalent & Alternatives

The following parts are listed as comparable options for similar LDO regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE4274G V50	Higher quiescent current (3 mA typ.), same PG-DSO-8 package, 5.0 V output, lower PSRR (70 dB)	Targeted at higher-current automotive loads (>150 mA); less suitable for ultra-low-I_q standby	Select if higher output current or legacy footprint compatibility is required over lowest I_q
TLV73350PDBVR	Lower I_q (40 µA), SOT-23-5 package, 5.0 V output, no reverse-battery protection	Optimized for portable consumer devices; lacks automotive-grade fault tolerance	Select only for non-automotive, space-constrained designs where reverse-voltage risk is absent

Compared with TLE4274G V50 and TLV73350PDBVR, IFX2931GV50XUMA2 uniquely balances ultra-low I_q, reverse-battery survival, and automotive thermal specs in a standard DSO-8 footprint - making it optimal for safety-critical, always-on vehicle subsystems.

Availability

IFX2931GV50XUMA2 is available at Aetrix Electronics and suitable for automotive memory standby, body control module (BCM) subsystems, telematics receiver bias, and low-power microcontroller supply requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for IFX2931GV50XUMA2 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 to AEC-Q100 standards.

The IFX2931 series belongs to Infineon's automotive-grade linear regulator product line, designed specifically for low-quiescent, fault-tolerant power delivery in vehicle body electronics and infotainment subsystems.

FAQ

What is the minimum input voltage required for regulation at full 100 mA load?

The IFX2931GV50XUMA2 maintains regulation down to an input voltage of 5.6 V at 100 mA load, based on its maximum dropout voltage of 0.6 V (V_OUT + V_DR = 5.0 V + 0.6 V). This ensures functionality during automotive cold-crank events where battery voltage dips below 6 V.

Can the IFX2931GV50XUMA2 be used with ceramic output capacitors smaller than 10 µF?

No - the datasheet specifies stability with ≥10 µF output capacitance and recommends low-ESR ceramic types. Using smaller values risks oscillation or poor transient response, especially under load steps. The 10 µF minimum is validated across temperature and process corners.

Does the IFX2931GV50XUMA2 require an input bypass capacitor?

Yes - a local ceramic capacitor (≥100 nF) between IN (pin 8) and GND (pins 2/3/6/7) is recommended to suppress high-frequency noise and improve line transient response. This is explicitly advised in the "Pin Configuration" section of the datasheet for compensating line influences.

Is the PG-DSO-8 package thermally enhanced, and how should the exposed pad be handled?

Yes - the PG-DSO-8 package includes an exposed thermal pad connected internally to GND. It must be soldered to a dedicated thermal land on the PCB, tied to the main GND plane via ≥4 thermal vias, to achieve the specified R_thJA = 96 K/W and prevent thermal shutdown under sustained 100 mA load.

IFX2931GV50XUMA2 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, Over Voltage, Reverse Polarity

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-DSO-8

IFX2931GV50XUMA2 FAQ

1.How can I place an order for IFX2931GV50XUMA2 through Aetrix?

Please submit a Request for Quotation (RFQ) for IFX2931GV50XUMA2 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 IFX2931GV50XUMA2 reliable?

The price and inventory of IFX2931GV50XUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX2931GV50XUMA2 is usually 5 days.

3.What payment methods are accepted for IFX2931GV50XUMA2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX2931GV50XUMA2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IFX2931GV50XUMA2?

IFX2931GV50XUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IFX2931GV50XUMA2 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 IFX2931GV50XUMA2?

For technical support, including IFX2931GV50XUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX2931GV50XUMA2 requirements.

6.How does Aetrix verify that IFX2931GV50XUMA2 is sourced from the original manufacturer or authorized distributors?

All IFX2931GV50XUMA2 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 IFX2931GV50XUMA2 meets industry standards.

7.What is the process for return or replacement of IFX2931GV50XUMA2?

All IFX2931GV50XUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with IFX2931GV50XUMA2, 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 IFX2931GV50XUMA2 part is unused and in its original packaging.

Return procedure for IFX2931GV50XUMA2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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