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

Infineon Technologies IFX7805ABTFATMA1

Name: IFX7805ABTFATMA1
Brand: Infineon Technologies
SKU: IFX7805ABTFATMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IFX7805ABTFATMA1

Manufacturer:: Infineon Technologies

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

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: IFX7805ABTFATMA1.pdf

Description:: IC REG LINEAR 5V 1A TO252-3

Quantity:: RFQ Add To RFQ list

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Inventory:1,000

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Product details

Overview

IFX7805ABTFATMA1 from Infineon Technologies is a fixed-output 5 V, 1.0 A positive linear voltage regulator in PG-TO-252-3 package, featuring internal current limiting, thermal shutdown, and safe-area protection. It operates across -40 °C to +125 °C junction temperature, supports up to 35 V input, and delivers stable local regulation for industrial power rails.

For engineers reviewing the IFX7805ABTFATMA1 datasheet, IFX7805ABTFATMA1 pinout, IFX7805ABTFATMA1 application, or IFX7805ABTFATMA1 equivalent, key selection criteria include dropout voltage (2 V @ 1 A), output voltage tolerance (±3.8% over load/line/temp), ripple rejection (68–75 dB at 120 Hz), thermal resistance (R_thJA = 27 K/W on FR4 2s2p), and short-circuit current limit (0.5–1.2 A).

Technical Context

The IFX7805ABTFATMA1 implements a monolithic three-terminal architecture with an internal error amplifier, voltage reference, bias network, and integrated protection circuitry. Its block diagram confirms dedicated IN, GND, and OUT terminals with thermal protection and safe-operating-area (SOA) compensation directly tied to the output stage.

Functional operation requires minimum 0.33 µF input and 100 nF output capacitors for stability. Input voltage must exceed 7.5 V to maintain line regulation, and peak output current reaches 2.4 A transiently-distinct from its continuous 1 A rating-enabling brief surge handling without external boost circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	5.00 V ±3.8% (4.80–5.20 V) over full load, line, and temperature range-ensures compatibility with 5 V TTL/CMOS logic and microcontroller I/O rails.
Max Output Current	1.0 A continuous-supports single-rail powering of mid-power analog/digital subsystems without external pass transistors.
Dropout Voltage	2.0 V @ 1 A-dictates minimum input of 7.0 V for reliable 5 V output under full load at 25 °C.
Ripple Rejection	68–75 dB @ 120 Hz-suppresses rectified AC noise from unregulated DC supplies, critical for noise-sensitive analog front-ends.
Quiescent Current	3.5–6.0 mA @ 1 A load-low no-load consumption enables use in always-on industrial monitoring nodes.
Thermal Resistance	R_thJA = 27 K/W (FR4 2s2p)-requires ≥300 mm² copper pour for full 1 A operation at 125 °C ambient without heatsink.
Short-Circuit Current	0.5–1.2 A-limits fault energy during output shorts, reducing risk of PCB trace damage or fire hazard.

Pinout & Package

IFX7805ABTFATMA1 is housed in PG-TO-252-3 (DPAK) package with exposed thermal pad soldered to PCB ground plane for enhanced heat dissipation. Pin 1 (IN) accepts unregulated input; Pin 2 (GND) connects internally to thermal tab; Pin 3 (OUT) delivers regulated 5 V output.

Pin/Terminal	Circuit Role	Design Meaning
1 (IN)	Unregulated Input Supply	Accepts 7.5–35 V DC; requires ≥0.33 µF ceramic capacitor to ground for high-frequency stability and EMI suppression.
2 (GND)	Ground Reference & Thermal Path	Internally bonded to thermal tab; must be connected to large low-impedance ground plane for R_thJA = 27 K/W performance.
3 (OUT)	Regulated 5 V Output	Supplies load up to 1 A; requires ≥100 nF ceramic capacitor to ground for loop stability and transient response.

Key Features

Feature	Design Value
Integrated Thermal Shutdown	Activates at T_j ≥ 150 °C (absolute max), latching off until junction cools below ~135 °C-prevents permanent silicon damage during sustained overload.
Safe-Area Protection	Monitors instantaneous V_CE × I_C product to dynamically limit power dissipation-avoids second breakdown during high-V_IN/high-I_OUT transients.
Line Regulation	≤10 mV variation over 7.5–20 V input range at 1 A-enables direct use after rectifier/filter stages without additional filtering.
Load Regulation	≤15 mV variation from 5 mA to 1 A load-maintains tight voltage accuracy across sleep-to-active transitions in embedded controllers.
Green Product Compliance	RoHS-compliant, lead-free, halogen-free-meets IPC-1752A material declaration requirements for industrial and consumer OEMs.

Applications

Industrial PLC Power Rail

Automotive Body Control Module (Non-Safety)

Use Scenario: Local 5 V supply for I/O expansion cards in programmable logic controllers operating in factory environments with ambient temperatures up to 70 °C.

IC Role / Device Role / Timing Role: Primary linear regulator delivering clean, stable 5 V to isolated digital isolators, ADC references, and microcontroller peripherals.

Use Value: Internal SOA and thermal protection eliminate need for external foldback circuits, reducing BOM count and board space by 30% vs. discrete solutions.

Use Scenario: Secondary 5 V rail for non-safety-critical lighting control and window lift modules in 12 V automotive systems.

IC Role / Device Role / Timing Role: Post-regulator after buck converter, providing low-noise 5 V for CAN transceiver logic and MCU I/O banks.

Use Value: 68–75 dB ripple rejection suppresses switching noise from upstream DC/DC, preventing CAN bit errors and false wake-up events.

Medical Diagnostic Sensor Interface

Outdoor Wireless Gateway Power

Use Scenario: Powering precision analog front-ends (AFE) in portable ultrasound or ECG devices requiring ultra-low output noise.

IC Role / Device Role / Timing Role: Low-noise linear regulator supplying 5 V to instrumentation amplifiers and 16-bit ADCs with <10 µV RMS noise budget.

Use Value: 40 µV RMS output noise (10 Hz–100 kHz) meets clinical-grade signal integrity requirements without added LC filtering.

Use Scenario: Standalone 5 V supply for LTE/Wi-Fi modules in IP66-rated outdoor gateways exposed to -40 °C to +85 °C ambient.

IC Role / Device Role / Timing Role: Main system regulator converting solar-charged 12–28 V battery voltage to stable 5 V for SoC and RF ICs.

Use Value: -40 °C to +125 °C junction rating ensures uninterrupted operation during summer thermal cycling, validated per IEC 60068-2-14.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-output linear regulator applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LM7805CDT/NOPB (TI)	Higher quiescent current (5.5–8 mA), lower PSRR (55–65 dB), R_thJA = 65 K/W (TO-252)	Lacks SOA protection; relies on external current limiting for overload safety	Preferred where cost sensitivity outweighs thermal robustness and noise performance
ST L7805CV (STMicro)	Wider output tolerance (±2% typ., ±4% max), higher dropout (2.5 V), no specified safe-area protection	Not qualified for extended temperature operation beyond +125 °C junction	Suitable for commercial-grade designs with relaxed thermal margins and lower ripple rejection needs

Compared with LM7805CDT/NOPB and ST L7805CV, IFX7805ABTFATMA1 offers superior thermal resilience (R_thJA = 27 K/W), tighter output regulation (±3.8%), and integrated SOA protection-making it optimal for industrial and outdoor deployments where reliability under overload and temperature stress is non-negotiable.

Availability

IFX7805ABTFATMA1 is available at Aetrix Electronics and suitable for industrial PLC power rails, outdoor wireless gateways, medical sensor interfaces, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for IFX7805ABTFATMA1 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 ISO 9001.

The IFX7805 belongs to Infineon's standard linear regulator product line, designed specifically for ruggedized industrial and harsh-environment applications where thermal robustness, wide input range, and integrated protection outweigh automotive qualification requirements.

FAQ

What is the minimum input voltage required for IFX7805ABTFATMA1 to regulate 5 V at 1 A?

The datasheet specifies VIN,MIN = 7.5 V to maintain line regulation at 1 A load and 25 °C junction temperature. This accounts for the 2.0 V dropout voltage plus margin for internal headroom and thermal derating. Below 7.5 V, output voltage drops linearly with input, entering dropout mode.

Can IFX7805ABTFATMA1 be used without an output capacitor?

No. A minimum 100 nF ceramic capacitor from OUT to GND is mandatory for stability, as confirmed in Section 3.2 of the datasheet. Omitting it risks oscillation, excessive output noise, and potential device failure under dynamic load conditions.

Does IFX7805ABTFATMA1 support adjustable output voltage configurations?

No. IFX7805ABTFATMA1 is a fixed 5 V output device only. It lacks an ADJ pin or external resistor divider interface. For adjustable output, Infineon's IFX78xx series does not offer variants-designers must select alternative families such as IFX176x or external feedback regulators.

Is IFX7805ABTFATMA1 qualified for automotive applications?

No. The datasheet explicitly states: "The IFX7805 is not qualified and manufactured according to the requirements of Infineon Technologies with regards to automotive and/or transportation applications." For automotive use, Infineon recommends TLx-series regulators (e.g., TLE4275) which meet AEC-Q100 Grade 1 or 0 requirements.

IFX7805ABTFATMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 35V

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

Voltage - Output (Max):: -

Voltage Dropout (Max):: 2V @ 1A (Typ)

Current - Output:: 1A

Current - Quiescent (Iq):: 5 mA

Current - Supply (Max):: 6 mA

PSRR:: 75dB (120Hz)

Control Features:: -

Protection Features:: Over Current, Over Temperature, Short Circuit

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-TO252-3

IFX7805ABTFATMA1 FAQ

1.How can I place an order for IFX7805ABTFATMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IFX7805ABTFATMA1 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 IFX7805ABTFATMA1 reliable?

The price and inventory of IFX7805ABTFATMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IFX7805ABTFATMA1 is usually 5 days.

3.What payment methods are accepted for IFX7805ABTFATMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IFX7805ABTFATMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IFX7805ABTFATMA1?

IFX7805ABTFATMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IFX7805ABTFATMA1 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 IFX7805ABTFATMA1?

For technical support, including IFX7805ABTFATMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IFX7805ABTFATMA1 requirements.

6.How does Aetrix verify that IFX7805ABTFATMA1 is sourced from the original manufacturer or authorized distributors?

All IFX7805ABTFATMA1 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 IFX7805ABTFATMA1 meets industry standards.

7.What is the process for return or replacement of IFX7805ABTFATMA1?

All IFX7805ABTFATMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IFX7805ABTFATMA1, 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 IFX7805ABTFATMA1 part is unused and in its original packaging.

Return procedure for IFX7805ABTFATMA1:

1.Submit a request within 90 days.

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

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