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

Infineon Technologies IFX1763XEJV50XUMA1

Name: IFX1763XEJV50XUMA1
Brand: Infineon Technologies
SKU: IFX1763XEJV50XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IFX1763XEJV50XUMA1

Manufacturer:: Infineon Technologies

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

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

Datasheet:: IFX1763XEJV50XUMA1.pdf

Description:: IC REG LIN 5V 500MA 8DSO E-PAD

Quantity:: RFQ Add To RFQ list

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Inventory:4,425

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Product details

Overview

IFX1763XEJV50 from Infineon Technologies is a micropower, low-noise, low-dropout 5 V linear regulator in PG-DSO-8 Exposed Pad package, delivering up to 500 mA output current with 350 mV dropout voltage, ±2.5% output accuracy over temperature and load, and 42 µVRMS output noise (10 Hz–100 kHz) when used with a 0.01 µF bypass capacitor. It serves as a primary power supply for microcontrollers and image sensors in battery-powered radar systems.

For engineers reviewing the IFX1763XEJV50 datasheet, IFX1763XEJV50 pinout, IFX1763XEJV50 application, or IFX1763XEJV50 equivalent, key selection criteria include its 30 µA quiescent current, reverse-battery protection, Kelvin sense capability, stability with ≥3.3 µF ceramic output capacitors, and shutdown current <1 µA - all critical for low-power, noise-sensitive embedded designs.

Technical Context

The IFX1763XEJV50 implements a precision bandgap reference with error amplifier feedback control and saturation-based pass transistor drive, enabling stable regulation across 5.5–20 V input while maintaining operation down to 1.8 V internal supply. Its architecture integrates reverse-battery protection and thermal foldback without external diodes.

It supports Kelvin sensing via dedicated SENSE pin for load-side voltage regulation, uses an internal BYP clamp (±0.6 V) for reference bypassing, and features logic-compatible EN pin with 1 µA input current and mandatory pull-up to VIN if unused - ensuring robust enable/disable control in automotive-adjacent industrial systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 5.0 V ±2.5% over full temperature and load range - ensures reliable MCU core/logic rail tolerance compliance.
Max Output Current	500 mA - sufficient to power mid-complexity microcontrollers with peripherals or dual-sensor modules.
Dropout Voltage	350 mV at 500 mA - enables operation from single-cell LiFePO₄ (≥5.85 V) or two-cell alkaline (≥7 V) inputs.
Quiescent Current	30 µA - extends battery life in always-on sensor nodes with infrequent wake-ups.
Output Noise	42 µVRMS (10 Hz–100 kHz) with 0.01 µF BYP capacitor - meets stringent noise requirements for analog front-ends in radar and image sensors.
Input Voltage Range	5.5 V to 20 V - accommodates wide-input industrial rails and transient-tolerant battery systems.
Shutdown Current	<1 µA - enables ultra-low-power deep-sleep states without external switches.
Thermal Resistance	R_thJA = 39 K/W (DSO-8 EP, 2s2p board) - allows 500 mA continuous operation at T_A ≤ 85 °C with minimal copper area.

Pinout & Package

IFX1763XEJV50 is housed in a PG-DSO-8 Exposed Pad package (8-pin SOIC variant with thermal pad), where Pin 9 (exposed pad) must be soldered to PCB ground and electrically tied to Pin 6 (GND) for optimal thermal performance and EMI suppression.

Pin/Terminal	Circuit Role	Design Meaning
1	OUT	Main regulated 5 V output; requires ≥3.3 µF ceramic capacitor to prevent oscillation and support transient loads.
2	SENSE	Kelvin sense input to error amplifier; connects directly to load for remote sensing or to OUT for local regulation.
3,7	NC	No internal connection; may be left floating or tied to GND per layout convenience.
4	BYP	Reference bypass node clamped at ±0.6 V; accepts 0.01 µF capacitor to reduce output noise by filtering reference ripple.
5	EN	Active-high enable; pulls output off when low; requires pull-up to VIN if driven by open-collector logic.
6	GND	Analog and power ground reference; must be connected to exposed pad (Pin 9) for thermal and noise integrity.
8	IN	Input supply (5.5–20 V); reverse-battery protected - blocks reverse current and prevents load backfeed during polarity reversal.
9	Tab	Exposed thermal pad; mandatory solder connection to PCB GND plane for R_thJA = 39 K/W performance.

Key Features

Feature	Design Value
Low-noise regulation	42 µVRMS output noise with 0.01 µF BYP cap - eliminates need for post-LDO filtering in RF/analog signal chains.
Reverse-battery protection	Integrated MOSFET-based blocking - prevents damage and load discharge when battery is inserted backward, no external diode required.
Kelvin sensing	Dedicated SENSE pin enables <1% load regulation error under 100 mΩ PCB trace resistance - critical for precision imaging rails.
Capacitor flexibility	Stable with ≥3.3 µF ceramic, tantalum, or aluminum electrolytic - avoids ESR dependency and simplifies BOM across legacy and new designs.
Ultra-low IQ shutdown	<1 µA shutdown current - enables years of shelf life in sealed battery-powered IoT edge devices.

Applications

Radar Signal Chain Power

Microcontroller Core Supply

Use Scenario: Powers RF transceiver ICs and ADC drivers in 24 GHz automotive radar modules requiring ultra-low phase noise and clean analog rails.

IC Role / Device Role / Timing Role: Primary 5 V LDO supplying analog front-end and clock distribution circuitry - acts as noise-isolated power source upstream of PLLs and mixers.

Use Value: 42 µVRMS noise and Kelvin sensing maintain SNR >65 dB in IF amplifiers, avoiding costly ferrite-bead + LC filtering stages.

Use Scenario: Supplies ARM Cortex-M4/M7 microcontrollers in portable industrial data loggers with multi-day battery life.

IC Role / Device Role / Timing Role: Main system rail regulator enabling active/standby mode transitions - manages power sequencing via EN pin and low-IQ sleep state.

Use Value: 30 µA quiescent current and <1 µA shutdown extend CR2032 battery life from weeks to >18 months in periodic wake-up operation.

Image Sensor Biasing

Battery-Powered Test Instrumentation

Use Scenario: Provides bias voltage to CMOS image sensors in handheld thermal cameras where pixel-level noise directly impacts thermal resolution.

IC Role / Device Role / Timing Role: Low-noise analog supply for sensor analog backend and column ADC reference - decouples digital switching noise from analog path.

Use Value: Fixed 5.0 V ±2.5% accuracy and 350 mV dropout ensure consistent sensor gain calibration across battery discharge (6–20 V input).

Use Scenario: Powers precision op-amp and reference circuits in handheld multimeters and oscilloscope probes.

IC Role / Device Role / Timing Role: Stable 5 V rail for 16-bit SAR ADCs and instrumentation amplifiers - functions as low-drift, low-PSRR supply in metrology-grade signal paths.

Use Value: Reverse-battery protection and no external diodes eliminate risk of meter damage during field battery swaps, reducing service returns.

Equivalent & Alternatives

The following parts are listed as comparable options for similar low-noise LDO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLE42754G	5 V fixed, 450 mA, 400 mV dropout, 50 µVRMS noise, no BYP pin, integrated reset flag	Automotive-qualified (AEC-Q100), includes power-good output - suited for engine control units but lacks Kelvin sense	Select when automotive qualification and system monitoring are required; avoid when ultra-low noise or remote sensing is critical.
MCP1703T-5002E/MB	5 V fixed, 250 mA, 600 mV dropout, 30 µVRMS noise, no SENSE or BYP pins, 1.8 µA IQ	Smaller SOT-23-5 package, lower current - fits space-constrained portable devices but cannot support 500 mA loads	Select for compact, sub-250 mA applications where board area is limiting; not suitable for radar or image sensor loads.

Compared with TLE42754G and MCP1703T-5002E/MB, IFX1763XEJV50 uniquely balances 500 mA capability, 42 µVRMS noise, Kelvin sensing, and reverse-battery protection - making it optimal for industrial radar and high-fidelity imaging where both power integrity and fault resilience are non-negotiable.

Availability

IFX1763XEJV50 is available at Aetrix Electronics and suitable for radar signal chain power, microcontroller core supply, image sensor biasing, and battery-powered test instrumentation requiring stable component supply across extended production lifecycles.

Supply support for IFX1763XEJV50 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 quality certification to ISO/TS 16949 and IATF 16949 standards.

The IFX1763 product line delivers high-reliability, low-noise LDOs for industrial and transportation-adjacent applications - designed specifically for noise-sensitive analog systems where automotive qualification is not required but robustness and precision are essential.

FAQ

What is the minimum output capacitance required for stable operation?

The IFX1763XEJV50 requires a minimum 3.3 µF ceramic, tantalum, or aluminum output capacitor to prevent oscillation. Larger values improve transient response for pulsed loads, and ESR is not a stability factor - unlike many older LDOs, this device remains stable with zero-ESR ceramics.

Can the SENSE pin be left unconnected?

No - the SENSE pin must be either connected directly to the OUT pin (for local regulation) or routed to the load's power input (for Kelvin sensing). Leaving it floating violates the error amplifier's input bias condition and risks regulation instability or overvoltage at the load.

Is reverse-current protection active during shutdown?

Yes - reverse-current protection is inherent to the internal pass transistor structure and remains fully functional whether the device is enabled or in shutdown. When IN is reversed relative to GND or OUT, the device blocks current flow in both directions without external components.

Does the BYP pin require a specific capacitor dielectric type?

The 0.01 µF capacitor on the BYP pin performs best with C0G/NP0 ceramic dielectrics due to their stable capacitance vs. voltage and temperature. X7R is acceptable but may reduce noise suppression consistency above 85 °C; electrolytic or tantalum types are not recommended due to higher leakage and impedance.

IFX1763XEJV50XUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-SOIC (0.154", 3.90mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 20V

Voltage - Output (Min/Fixed):: 5V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.48V @ 500mA

Current - Output:: 500mA

Current - Quiescent (Iq):: 60 µA

Current - Supply (Max):: 31 mA

PSRR:: 65dB (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

IFX1763XEJV50XUMA1 FAQ

1.How can I place an order for IFX1763XEJV50XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IFX1763XEJV50XUMA1 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 IFX1763XEJV50XUMA1 reliable?

The price and inventory of IFX1763XEJV50XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX1763XEJV50XUMA1 is usually 5 days.

3.What payment methods are accepted for IFX1763XEJV50XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX1763XEJV50XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IFX1763XEJV50XUMA1?

IFX1763XEJV50XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IFX1763XEJV50XUMA1 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 IFX1763XEJV50XUMA1?

For technical support, including IFX1763XEJV50XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX1763XEJV50XUMA1 requirements.

6.How does Aetrix verify that IFX1763XEJV50XUMA1 is sourced from the original manufacturer or authorized distributors?

All IFX1763XEJV50XUMA1 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 IFX1763XEJV50XUMA1 meets industry standards.

7.What is the process for return or replacement of IFX1763XEJV50XUMA1?

All IFX1763XEJV50XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX1763XEJV50XUMA1, 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 IFX1763XEJV50XUMA1 part is unused and in its original packaging.

Return procedure for IFX1763XEJV50XUMA1:

1.Submit a request within 90 days.

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

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